administration
Archived posts from this Category
Cron: Permission denied?
Posted by Tom Whiting on 30 Nov 2007 | Tagged as: administration
When setting up new server this week, and trying to add cronjobs, I noticed that I was getting an error:
cron/user: Permission denied
What caused this? Why is it here? How to resolve? Read more Continue Reading»
Server Security - How much is too much (or too little)
Posted by Tom Whiting on 18 Nov 2007 | Tagged as: administration
I read a number of individual comments about “server security”, and how individuals focus more on “security” and less on “customer usability”, and it just makes me wonder HOW individuals get away with pulling such ridiculous stunts. Well, here’s a few tips from someone who’s been in the game a while. I’m not going to tell you HOW to do this (I don’t reveal any secrets), but a few good tips should be all it takes.
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SQL and backups. How do I do it?
Posted by Tom Whiting on 18 Sep 2007 | Tagged as: administration
Probably one of the most important things you will have to do in your life as a systems admin is BACKUPS. Typically, you can rsync things from A to B, and then reverse to restore. HOWEVER, there are certain things that this should never be done for. One of those very critical things is MySQL.
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SQL - Is it optimized?
Posted by Tom Whiting on 17 Sep 2007 | Tagged as: administration
Running 2 webservers myself, both very intense in SQL services (what server isn’t any more?), I found that SQL can be ugly, it can be just downright ugly, especially when NOT optimized on a frequent basis. Today, I’ll go through a very simple trick and script to optimize your SQL databases. Doing this saves me 10-20 meg a day in backups.
Tomorrow, how to create daily SQL backups OUTSIDE of your control panel, and restore from them if necessary!
Continue Reading»
service httpd does not support chkconfig — How to fix?
Posted by Tom Whiting on 08 Sep 2007 | Tagged as: administration
So, on setting up a few new servers tonight for a client, I ran into the following error
[root@server ~]# rpm -e httpd httpd-suexec httpd-devel php php-pear php-devel php-imap
service httpd does not support chkconfig
error: %preun(httpd-2.0.52-32.3.ent.centos4.i386) scriptlet failed, exit status 1
[root@server ~]#
What happened here? This was a stock CentOS4 server (completely updated). How to resolve? Read more to find out.
Continue Reading»
Does YOUR ISP support insecure DNS? You’d be surprised to see which DO!
Posted by Tom Whiting on 04 Sep 2007 | Tagged as: administration
With CPanel 11 rolling out as stable, you’d be surprised to see the number of individuals I get with this response:
I can’t access CPanel/webmail/etc. When I try, I get the following error
The server was configured to not permit you access to the specified resource. If you believe this is in error or inadvertent, please contact the
system administrator and ask them to update the host access files.
A2 day is here!
Posted by Tom Whiting on 11 Aug 2007 | Tagged as: administration
So, finally, the day has arrived. I woke up around 3am because of an alert from a client’s server. Services down, so naturally, I responded.
Being the kind of person that doesn’t (rather can’t) just go back to bed, I looked to see what had progressed the past few days with a few things. Lo and behold, I found that php 5.2.1 was released and attempted to update it via the “cpanel” way.
So, by now you’re probably wondering <em>what the fork is a2, and what does it have to do with CPanel?</em>. The answer is quite simple: Continue Reading»
