CHAPTER 3. FAQ

Q: What do I do when Mailman wants UID 99 when getting  1?

A: Do the following:

1. edit httpd.conf

2. Make sure Group is set to nobody.

3. run /scripts/upcp   that should rebuild mailman with the correct UID/GID.

/scripts/upcp should now detect this and fix it for you automatically.

1. Turn on SYN Cookies if built into the kernel.

2. echo 1  /proc/sys/net/ipv4/tcp syncookies   at boot time after the /proc file system has been mounted.

Q: How do I troubleshoot Perl scripts?

A: Do the following:

1. edit perl / cgi script   at top of file #!/usr/bin/perl

2. Use CGI::Carp qw(fatalsToBrowser);   errors should be redirected to browser rather then getting a 500

error.

3. Also, check if the script runs on the command line   perl  w ./scriptname.cgi   and see if it gives you errors.

Q: What do I do if subdomain logs are not getting processed?

A: Do the following:

1. rm  f  username/tmp/lastrun

2. killall  9 cpanellogd

3. /usr/local/cpanel/cpanellogd

Q: How do I stop a crontab?

Add    /dev/null 2 &1   after the entry in the crontab.

Q: What do I do when MySQL gives error of access denied for root@localhost?

A: Make sure root pass is in /root/.my.cnf , this is usually the first root password the box was given when CPanel

was installed.

Q: How do I set the /etc/my.cnf file for sites with vbb forums that don't close connections, thus spawning 500

mysqld's and hogging all the RAM?

A: Do the following to mysqld:

  set variable = max connections=1500

  set variable = max user connections=200

  set variable = wait timeout=200

  set variable = interactive timeout=800

Q: What do I do if SpamAssassin is taking up a lot of memory and CPU?

A: The chances are the dbm database has gotten corrupted. Try this:

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