http://aplawrence.com/ Main feed at aplawrence.com: Thousands of articles, reviews, consultants listings, skills tests, opinion, how-to's for Unix, Linux and Mac OS X, networking, web site maintenance and more.. hourly 6 2008-01-01T00:00+00:00 en A.P. Lawrence Copyright A.P. Lawrence A.P. Lawrence (mailto:rssfeeds@aplawrence.com) 2009-11-06T18:52:59+00:00 41.889582-70.894066SiteNewsForAplawrenceUnixLinuxAndMacOsXResourceshttp://feedburner.google.comSubscribe with My Yahoo!Subscribe with NewsGatorSubscribe with My AOLSubscribe with BloglinesSubscribe with NetvibesSubscribe with GoogleSubscribe with Pageflakes http://creativecommons.org/images/public/somerights20.gifhttp://creativecommons.org/licenses/by-sa/2.0/ Linux,Security ; 2009/11/05<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>A customer reported that a Linux machine used for ssh access (to in turn give telnet access to an ancient SCO machine) was refusing logins. I asked him to try logging in as root at the console; he was unable to do so.</p> <p>When I arrived on site, I found that I could not login as he had said. I rebooted to single use mode and started peeking around. The machine had been hacked; there was little doubt about that. It's HOW it was hacked that bothers me,</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Linux/strange-hack.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/FwzZ77goCtPXnEPeOXKREZyevJA/0/da"><img src="http://feedads.g.doubleclick.net/~a/FwzZ77goCtPXnEPeOXKREZyevJA/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/FwzZ77goCtPXnEPeOXKREZyevJA/1/da"><img src="http://feedads.g.doubleclick.net/~a/FwzZ77goCtPXnEPeOXKREZyevJA/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=EZioqq6dzr8:r8CQaGhlFAQ:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/EZioqq6dzr8" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/EZioqq6dzr8/strange-hack.html http://aplawrence.com/Linux/strange-hack.html Troubleshooting,Linux,Samba ; 2009/11/04<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>Yesterday a customer called because he needed to be able to write into a certain share on his Samba server. I ssh'd right in, made the change to the config file, restarted Samba and shot him off an "All set!" email.</p> <p>Such confidence had I that immediately after hitting send, I left my house to do some errands and when I realized I had forgotten my phone, I didn't even bother to go back for it: everything is under control, all pigs are fed and ready to fly.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Linux/samba-pigs.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/lwqJ_MAodwJlnFjxQGWZ-E3ZeO4/0/da"><img src="http://feedads.g.doubleclick.net/~a/lwqJ_MAodwJlnFjxQGWZ-E3ZeO4/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/lwqJ_MAodwJlnFjxQGWZ-E3ZeO4/1/da"><img src="http://feedads.g.doubleclick.net/~a/lwqJ_MAodwJlnFjxQGWZ-E3ZeO4/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=Pb3iTlbbvNU:uVX9gwsZXyE:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/Pb3iTlbbvNU" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/Pb3iTlbbvNU/samba-pigs.html http://aplawrence.com/Linux/samba-pigs.html Web-HTML,Blogging,Advertising ; 2009/11/03<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>Let me first apologize to the people who don't yet have Wave accounts - it must be very boring and also frustrating listening to people wax on about things you can't yet experience.</p> <p>On that note, I do have a few invitations left for regular contributors, customers, and so on.. Just drop me an email.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Web/gentle-wave.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/IbF18m8C2SdwcyyLzp6vI_z6sDc/0/da"><img src="http://feedads.g.doubleclick.net/~a/IbF18m8C2SdwcyyLzp6vI_z6sDc/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/IbF18m8C2SdwcyyLzp6vI_z6sDc/1/da"><img src="http://feedads.g.doubleclick.net/~a/IbF18m8C2SdwcyyLzp6vI_z6sDc/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=8AQ4z9AQygo:qTJjdEYgyeI:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/8AQ4z9AQygo" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/8AQ4z9AQygo/gentle-wave.html http://aplawrence.com/Web/gentle-wave.html Web-HTML,Blogging,Advertising ; 2009/11/02<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>There are people who don't understand Google Wave. There are people who don't like Google Wave. There are people who do understand Wave, and people who do like it. Most of those who don't like it just don't understand it, but even a few who do understand still don't like it.</p> <p>Most (maybe even all) of the complaints you'll hear about Wave are gripes about problems that obviously will be fixed as this progresses out if its current "Preview" stage. Most of the complaints are also client-side implementation issues that have nothing whatsoever to do with the underlying concepts. You need to keep that in mind when listening to negative comments.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Web/misunderstandig-wave.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/vO0KEMJW5v-hqCFW0gfDzYdjM38/0/da"><img src="http://feedads.g.doubleclick.net/~a/vO0KEMJW5v-hqCFW0gfDzYdjM38/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/vO0KEMJW5v-hqCFW0gfDzYdjM38/1/da"><img src="http://feedads.g.doubleclick.net/~a/vO0KEMJW5v-hqCFW0gfDzYdjM38/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=P2uwIB4wx7Q:X6ol5J0IuqE:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/P2uwIB4wx7Q" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/P2uwIB4wx7Q/misunderstandig-wave.html http://aplawrence.com/Web/misunderstandig-wave.html Web-HTML,Blogging,Advertising ; 2009/10/31<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>Thanks to one of our readers (thanks again, Donal) I got a Google Wave invitation Friday morning. By the way - if someone says they have sent you an invitation, you may have to wait: Donal said that he had sent that invitation on Monday. I don't know if Google is just slow in processing these or if they are deliberately doling them out slowly (probably the latter), but once you actually get your invite, you can be up and working in minutes.</p> <p>I started out using Wave in my Firefox browser, but quickly switched to <a href="http://www.getwaveboard.com">Waveboard</a>, a Mac Wave client. It's not that it's all that much better than running Wave in a browser; it's just that I like having it in its own Dock icon.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Web/first-google-waves.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/pDfowJXDyWO1kRognLWA_SP5caE/0/da"><img src="http://feedads.g.doubleclick.net/~a/pDfowJXDyWO1kRognLWA_SP5caE/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/pDfowJXDyWO1kRognLWA_SP5caE/1/da"><img src="http://feedads.g.doubleclick.net/~a/pDfowJXDyWO1kRognLWA_SP5caE/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=N9x-sGBSzVo:0y_oWlBYluU:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/N9x-sGBSzVo" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/N9x-sGBSzVo/first-google-waves.html http://aplawrence.com/Web/first-google-waves.html Web-HTML ; 2009/10/29<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>When we first moved here, our address didn't exist in Google Maps, nor could anything but dirt be seen in the satellite images. That changed soon enough and for some time now I've been able to plug in my home address as a starting point for directions.</p> <p>A year or so ago, I started having a little trouble with that. The reason was because someone I do business with added me to a user generated map. From that point on, Google saw my address as a business address, and would react by asking "Did you mean A.P. Lawrence?". I'd just click on that and everything would be fine.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Web/google-maps-loses-me.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/oy8BglD9mHxgwAKo1IFD5Bsx94c/0/da"><img src="http://feedads.g.doubleclick.net/~a/oy8BglD9mHxgwAKo1IFD5Bsx94c/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/oy8BglD9mHxgwAKo1IFD5Bsx94c/1/da"><img src="http://feedads.g.doubleclick.net/~a/oy8BglD9mHxgwAKo1IFD5Bsx94c/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=u-0-aJMtz2M:rCMneZhOR3I:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/u-0-aJMtz2M" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/u-0-aJMtz2M/google-maps-loses-me.html http://aplawrence.com/Web/google-maps-loses-me.html Employment,Opinion ; 2009/10/28<br /> <br /><br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>Earlier this week I got email from VMware announcing that I could now order Fusion 3.0 for my Mac. Because I had been a beta tester of this, they offered me a coupon code that was supposed to give me a 25% discount.</p> <p>To my annoyance, it did not. The order page insisted the code was invalid.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Opinion/answering-email.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/d1TTp0_RkBo6RlBXBtiJ8ATSwmg/0/da"><img src="http://feedads.g.doubleclick.net/~a/d1TTp0_RkBo6RlBXBtiJ8ATSwmg/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/d1TTp0_RkBo6RlBXBtiJ8ATSwmg/1/da"><img src="http://feedads.g.doubleclick.net/~a/d1TTp0_RkBo6RlBXBtiJ8ATSwmg/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=Yz5OAcaicg8:9PkMGCg2_Uw:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/Yz5OAcaicg8" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/Yz5OAcaicg8/answering-email.html http://aplawrence.com/Opinion/answering-email.html Linux,MacOSX ; 2009/10/28<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>I admit that I have done a "chmod 777" when I should not have. Almost always that came from haste or frustration. Not frustration with Unix permissions, but frustration with whoever had daily care responsibility for the system - their inability to understand permissions might have driven me to this.</p> <p>Sometimes it hardly matters. At many small businesses, everybody has "got root" anyway and has learned that this magic incantation will "fix" problems. Well, until it breaks a setuid program, of course. Nobody, NOBODY ever learns "chmod +w", do they?</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Unixart/chmod-777.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/HG_lv0oUaiEONo6e1QoOu_chAr8/0/da"><img src="http://feedads.g.doubleclick.net/~a/HG_lv0oUaiEONo6e1QoOu_chAr8/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/HG_lv0oUaiEONo6e1QoOu_chAr8/1/da"><img src="http://feedads.g.doubleclick.net/~a/HG_lv0oUaiEONo6e1QoOu_chAr8/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=fEdxziwFP_U:DFzdoo9p7a0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/fEdxziwFP_U" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/fEdxziwFP_U/chmod-777.html http://aplawrence.com/Unixart/chmod-777.html Linux,MacOSX,Shell ; 2009/10/27<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>You need to let users create files in a common directory, but you don't want them to be able to delete other's files. Or you've put certain files, directories or symlinks into a user's home directory and don't want them to be able to mess with any of those. What can you do?</p> <h2>"t" bit</h2> <p>If you create /foo and do "chmod 1777 /foo", you'll have a world-writeable directory with the "text bit" set. Any user can create files here, but they can only delete files that they own (root can still rm anything). That's ownership as listed in the "owner" column of an "ls -l". Group ownership doesn't come into play here although it does change responses a bit.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Unixart/file-removal.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/fJwRQvpF6aCYCnOpaTNN2feis4I/0/da"><img src="http://feedads.g.doubleclick.net/~a/fJwRQvpF6aCYCnOpaTNN2feis4I/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/fJwRQvpF6aCYCnOpaTNN2feis4I/1/da"><img src="http://feedads.g.doubleclick.net/~a/fJwRQvpF6aCYCnOpaTNN2feis4I/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=lyIvDkhFgI0:Q1eui_BfWeg:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/lyIvDkhFgI0" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/lyIvDkhFgI0/file-removal.html http://aplawrence.com/Unixart/file-removal.html Employment ; 2009/10/26<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>I've been working out of my home office since 1983, but had no idea I had so much company: <a href="http://www.businessweek.com/smallbiz/content/oct2009/sb20091023_263258.htm">The Rise of the 'Homepreneur' (Business Week)</a> says that there are over six and a half million "homepreneurs" and that we are responsible for 10% of private sector employment.</p> <p>Wow. When I tell people I work from a home office, the reaction is often a bit negative. "How long have you been doing that?", they'll ask, with a strong implication that I must just be "between" jobs. As I've said in other places, you could work for yourself for 50 years, but if you took a job at the Mall just before you died, your obituary will probably mention that: most people don't think of self employment, and especially self employment from a home office, as "real" employment.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Employment/homepreneurs.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/R3osmlwqs89z-O2VXSjjiaLql0w/0/da"><img src="http://feedads.g.doubleclick.net/~a/R3osmlwqs89z-O2VXSjjiaLql0w/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/R3osmlwqs89z-O2VXSjjiaLql0w/1/da"><img src="http://feedads.g.doubleclick.net/~a/R3osmlwqs89z-O2VXSjjiaLql0w/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=YGXQd3GeD-k:LKMAeJ0ujac:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/YGXQd3GeD-k" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/YGXQd3GeD-k/homepreneurs.html http://aplawrence.com/Employment/homepreneurs.html Web-HTML,Blogging,Security,Opinion ; 2009/10/23<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>I was listening to an NPR show about internet privacy and the "worrysome" fact that internet information lasts forever. The very forgettable guest being interviewed was harping on "forgetting" - he apparently wants us to be able to set retention dates for things the Internet knows about us. Callers chimed in with stories of real and potential embarrassment from discretions and more serious actions that their boss, their children or their spouses might accidentally discover while bumbling about the Internet. SOMETHING MUST BE DONE!</p> <p>I don't agree.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Web/forget.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/rIUaNh9r3kUvsnQUMrfjUL9hLEo/0/da"><img src="http://feedads.g.doubleclick.net/~a/rIUaNh9r3kUvsnQUMrfjUL9hLEo/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/rIUaNh9r3kUvsnQUMrfjUL9hLEo/1/da"><img src="http://feedads.g.doubleclick.net/~a/rIUaNh9r3kUvsnQUMrfjUL9hLEo/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=AqGJFhvKrUg:DCrn1_-1AwA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/AqGJFhvKrUg" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/AqGJFhvKrUg/forget.html http://aplawrence.com/Web/forget.html Shell,Linux,MacOSX ; 2009/10/21<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>"Type ess-see-pee-SPACE-john-ATSIGN-192-DOT". The person at the other end of the phone line interrupted me: "Hold on, I typed an extra space".</p> <p>"You mean before 'john''?", I asked, "That doesn't matter".</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Unixart/plenty-of-space.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/mJaexC-mnadMI3AJ1O1EbZGvPv0/0/da"><img src="http://feedads.g.doubleclick.net/~a/mJaexC-mnadMI3AJ1O1EbZGvPv0/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/mJaexC-mnadMI3AJ1O1EbZGvPv0/1/da"><img src="http://feedads.g.doubleclick.net/~a/mJaexC-mnadMI3AJ1O1EbZGvPv0/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=ICUIRThP8_o:PGDVjY1Dr0k:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/ICUIRThP8_o" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/ICUIRThP8_o/plenty-of-space.html http://aplawrence.com/Unixart/plenty-of-space.html Kerio ; 2009/10/20<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p>When you configure Services in Kerio Mailserver, you can restrict the number of allowed connections. See <a href="http://manuals.kerio.com/kmsag/en/sect-servicesparams.html">Service Parameter Settings</a> in Kerio's on-line manual if you aren't already familiar with this.</p> <p>One of the questions I often get is how to set those service limits. For example, how many concurrent https connections should we allow? You could just set it to an arbitrarily high number, but that can expose you to Denial of Service attacks where the machine is so busy with https that it can't do much else. On the other hand, you don't want your users unable to connect because you have set it too low.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Kerio/max-connections.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/gfrbE7zKA-Fqp8Ac67RwIHImrsY/0/da"><img src="http://feedads.g.doubleclick.net/~a/gfrbE7zKA-Fqp8Ac67RwIHImrsY/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/gfrbE7zKA-Fqp8Ac67RwIHImrsY/1/da"><img src="http://feedads.g.doubleclick.net/~a/gfrbE7zKA-Fqp8Ac67RwIHImrsY/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=Gxtvuj_790M:9riBdjwOk0w:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/Gxtvuj_790M" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/Gxtvuj_790M/max-connections.html http://aplawrence.com/Kerio/max-connections.html Opinion,Employment ; 2009/10/19<br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p><i>For our non-New England readers: In the Boston area and even down into Rhode Island, a lot of us tend to pronounce our r's as h's (though a Rhode Islander might say "our r's as haitches", but that's a different story). </i></p> <p>When I went into first grade, I was put in the Retarded Class. I'm sure that's not what it was officially called, but all of us who were in it knew that's what it was, and of course so did every other child and all the teachers. Everybody knew us. We were the misfits, the dummies, the slow learners, the problem kids. This was early 1950's, so in reality a lot of us were dyslexic or had alcoholic parents or other learning disadvantages and disabilities, but paying attention to any of that just didn't exist then.</p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Opinion/wicked-smaht.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them.</b></i></p> <p><i><b>I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. If you have any question, please do feel free to contact me.</b></i></p> <div style="font-size:80%"> <table> <tr> <td> - </td> <td><a href="http://aplawrence.com/Tests">Skills Tests</a></td> <td> - </td> <td><a href="http://aplawrence.com/psst.html">Psst - wanna work for yourself?</a></td> <td> - </td> <td><a href="http://aplawrence.com/troubleshootingbook.html">Unix/Linux Troubleshooting e-book</a></td> <td> - </td> <td><a href="http://aplawrence.com/Kerio">Kerio Mail Server</a></td> <td> - </td> <td><a href="http://aplawrence.com/rates.html">Consulting</a></td> <td> - </td> <td><a href="http://aplawrence.com/advert.html">Advertise Here</a></td> </tr> </table> </div> <p><a href="http://feedads.g.doubleclick.net/~a/HjjuHrX8ynu_7UbsT_HRncZlw4s/0/da"><img src="http://feedads.g.doubleclick.net/~a/HjjuHrX8ynu_7UbsT_HRncZlw4s/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/HjjuHrX8ynu_7UbsT_HRncZlw4s/1/da"><img src="http://feedads.g.doubleclick.net/~a/HjjuHrX8ynu_7UbsT_HRncZlw4s/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?a=6bJBL9HwGZI:s7FUDf0lcVU:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources?d=yIl2AUoC8zA" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~4/6bJBL9HwGZI" height="1" width="1"/> http://feedproxy.google.com/~r/SiteNewsForAplawrenceUnixLinuxAndMacOsXResources/~3/6bJBL9HwGZI/wicked-smaht.html http://aplawrence.com/Opinion/wicked-smaht.html Programming,Girish ; 2009/10/19 by Girish Venkatachalam <br /> <!-- LEFTADOK --> <!-- PCOUNT --> <!-- PCOUNT --> <p><i>Girish Venkatachalam is a UNIX hacker with more than a decade of networking and crypto programming experience. His hobbies include yoga,cycling, cooking and he <a href="http://gayatri-hitech.com/about.html">runs his own business.</a> Details here:</i><br /><br /> <a href="http://gayatri-hitech.com">http://gayatri-hitech.com</a> <br /><a href="http://spam-cheetah.com">http://spam-cheetah.com</a> </p> <p> Doing even the simplest programming tasks in C can be daunting due to its fondness for segfaulting. A C program can be found crashing on printf, command line parsing or nearly every attempt to print a string that is NULL. Or even access it. </p> <p><a href="http://aplawrence.com/rss/index.html">Full Text RSS Feed now available</a></p> <p>Comments: <a href="http://aplawrence.com/cgi-bin/newcomm.pl?commenting=/Girish/c-fileio.html">Click Here.</a></p> <p><br /><br /><i><b>Many of the products and books I review are things I purchased for my own use. 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