Linux News at A.P.Lawrence http://aplawrence.com/ Linux 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) 2017-02-17T10:37:54+00:00 A.P.Lawrence Logo http://aplawrence.com/image21.gif http://aplawrence.com I have a best selling book on Amazon! by Anthony Lawrence I have a best seller on Amazon -->

Pardon me while I brag a little bit.

Well, no, not really brag. Honestly, I'm just astonished to find my Unix and Linux Troubleshooting E-Book listed among the "best sellers" in not one, but two Amazon categories. Ok, in fairness it barely makes the cutoff in Books>Computers & Technology>Operating Systems>Unix, but it's on page two of Kindle Store>Kindle eBooks>Computers & Technology>Operating Systems>Unix and that surprises me.

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]]> http://aplawrence.com/Linux/amazon-best-seller.html Why doesn't rcp work for root? by Anthony Lawrence Why doesn't rcp work for root? -->

Anonymous asks:

Why doesn't rcp work for root? I get Permission Denied even though it works with other users?

Before I answer that, I'd like to first suggest that you forget about rcp and use scp. Unless the system you are using is too old to support ssh and scp, you really should not use rcp.

-- This feed and its contents are the property of A.P. Lawrence, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.


]]> http://aplawrence.com/Forum/rcp_root.html How can I prevent logins? by Anthony Lawrence How can I prevent logins? -->

Anonymous asks:

How can I prevent logins? I need a way to disable logins from the root user account without being at the server console itself.

Many modern Unix/Linux systems respect the /etc/nologin file. Simply login as root and do "touch /etc/nologin". This restricts logins to root only. When you want to allow users again, "rm /etc/nologin".

-- This feed and its contents are the property of A.P. Lawrence, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.


]]> http://aplawrence.com/Forum/prevent-logins.html Where can I get a hexadecimal or binary calculator? by Anthony Lawrence Where can I get a hexadecimal or binary calculator? -->

Anonymous asks:

Where can I get a hexadecimal or binary calculator that will help me manage hex and binary numbers?

Do you mean like this?

-- This feed and its contents are the property of A.P. Lawrence, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.


]]> http://aplawrence.com/Forum/programmers-calculator.html Xinuos introduces SCO_X - does anyone care? by Anthony Lawrence Xinuos introduces SCO_X - does anyone care? -->

Xinuos has introduced Open Server X, a BSD distro that they describe as a "migration path" for SCO UnixWare 7, SCO OpenServer 5 and SCO OpenServer 6 customers. If this had been offered ten years ago, it might have been of interest, but I really have a hard time imagining this will matter at all now. Still, I downloaded the image and fired it up in a VM.

SCO_X - does anyone care?

-- This feed and its contents are the property of A.P. Lawrence, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.


]]> http://aplawrence.com/SCO_OSR5/SCO_X.html The Moose Linux Router Worm is more like Bullwinkle, honestly by Anthony Lawrence The Moose is more like Bullwinkle, honestly -->

I've been seeing frightening headlines about a new threat to Linux based routers. "Moose - the router worm with an appetite for social networks", "Dissecting the Linux/Moose malware", "Moose worm targeting Linux-based routers and systems" and more. Bar the door and get out the rifles, boys: we are under attack!

There's even an imposing list of "affected vendors": 3Com, Alcatel-Lucent, Allied Telesis, Avaya, Belkin, Brocade, Buffalo, Celerity, Cisco, D-link, Enterasys, Hewlett-Packard, Huawei, Linksys, Mikrotik, Netgear, Meridian, Nortel, SpeedStream, Thomson, TP-Link, Zhone, ZyXEL and more. Forget the rifles, we need cannons!

-- This feed and its contents are the property of A.P. Lawrence, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.


]]> http://aplawrence.com/Security/the-moose-is-bullwinkle.html Unix and Linux startup scripts Part 4, Systemd by Anthony Lawrence Unix and Linux startup scripts Part 4, Systemd -->

This is a continuation of Unix and Linux startup scripts, Part 3

Systemd is gaining favor in Linux distributions. This is a big change from inittab and everything else we've had in the past. To find out more about it, I downloaded the latest Ubuntu desktop and began exploring. The first thing I noticed is that there is still an init.d directory and it does have shell scripts in it. However, /sbin/init is now a symlink to /etc/systemd and those scripts do not execute when systemd is in charge.

-- This feed and its contents are the property of A.P. Lawrence, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.


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