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Parallels Plesk query
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22-04-2010 9:39am#1Hi all,
I have a parallels plesk query that hopefully someone might be able to help me with... it's a long one...
I host a number of my own sites with an unmanaged VPS Plesk controlled server.
After adding new email accounts to one site I've been getting errors on Thunderbird which read as follows:Unable to connect to your IMAP server. You may have exceeded the maximum number of connections to this server. If so, use the Advanced IMAP Server Settings dialog to reduce the number of cached connections.
Now I know that the number of IMAP connections needs to be increased. The only way I can do this is to log in via SSH using Putty as the Super admin of the VPS server. Correct?
So I've found this article which has been pretty helpful in pointing out where to go when in the srver via Putty:
http://kb.parallels.com/en/165Resolution
This error occurs when you are checking mail for multiple accounts from the same IP address. The default maximum number of connections per IP address (MAXPERIP) for imapd/pop3d is set to 4. This number can be increased in the imapd and pop3d configuration files. The files can be found in $COURIER_IMAP_ROOT_D/etc/ folder. Value of COURIER_IMAP_ROOT_D variable can be found in /etc/psa/psa.conf. You also may need to increase the MAXDAEMONS variable:
MAXPERIP= 4 #Allows you to set the number of pop connections from one IP.
MAXDAEMONS= 40 #Allows you to set the total number of pop connections.
Once the changes have been completed courier-imap must be restarted:
$PRODUCT_RC_D/courier-imap restart
Keywords: pop3 imap connection limit pop3d imapd maximum number increase
Now, here's the fun part.- I log in to Putty with the VPS username and password
- I then vim /etc/psa/psa.conf
- I then cd $COURIER_IMAP_ROOT_D/etc/
- Then ls -lah
All's good up to this point.... Then after I've listed all the files I can't see any reference to any files called imapd and pop3d
The list of files I get is as follows:[root@vps-1001108-595 ~]# vim /etc/psa/psa.conf [root@vps-1001108-595 ~]# cd $COURIER_IMAP_ROOT_D/etc/ [root@vps-1001108-595 etc]# ls -lah total 2.1M drwxr-xr-x 54 root root 4.0K Apr 21 17:25 . drwxr-xr-x 20 root root 4.0K Sep 7 2009 .. -rw------- 1 root root 12K Apr 21 17:42 .imap.swp -rw------- 1 root root 0 Jun 17 2008 .pwd.lock -rw-r--r-- 1 root root 2.5K Mar 21 2007 DIR_COLORS -rw-r--r-- 1 root root 2.4K Mar 21 2007 DIR_COLORS.xterm drwxr-xr-x 5 root root 4.0K Jun 17 2008 X11 -rw-r--r-- 1 root root 12 Nov 10 2007 adjtime -rw-r--r-- 1 root root 1.5K Jun 17 2008 aliases -rw-r----- 1 root smmsp 12K Oct 29 2008 aliases.db drwxr-xr-x 2 root root 4.0K Oct 29 2008 alternatives drwxr-xr-x 2 root root 4.0K Oct 29 2008 awstats -rw-r--r-- 1 root root 1.5K Nov 28 2006 bashrc drwxr-xr-x 2 root root 4.0K May 24 2008 blkid drwxr-xr-x 4 root root 4.0K Oct 29 2008 courier-imap drwx------ 2 root root 4.0K Nov 10 2007 cron.d drwxr-xr-x 2 root root 4.0K Oct 29 2008 cron.daily -rw-r--r-- 1 root root 0 Jun 17 2008 cron.deny drwxr-xr-x 2 root root 4.0K Jan 6 2007 cron.hourly drwxr-xr-x 2 root root 4.0K Oct 29 2008 cron.monthly drwxr-xr-x 2 root root 4.0K Oct 29 2008 cron.weekly -rw-r--r-- 1 root root 255 Oct 29 2008 crontab -rw-r--r-- 1 root root 617 Mar 21 2006 csh.cshrc -rw-r--r-- 1 root root 513 Jun 20 2005 csh.login drwxr-xr-x 3 root root 4.0K Jun 17 2008 dbus-1 drwxr-xr-x 2 root root 4.0K Jun 17 2008 default drwxr-xr-x 2 root root 4.0K Jun 17 2008 depmod.d drwxr-xr-x 3 root root 4.0K Jun 17 2008 dev.d -rw-r--r-- 1 root root 0 Mar 18 2007 environment -rw-r--r-- 1 root root 0 Jan 12 2000 exports -rw-r--r-- 1 root root 59 Jan 31 2006 filesystems drwxr-xr-x 4 root root 4.0K Oct 29 2008 fonts -rw-r--r-- 1 root root 28 Jun 17 2008 fstab -rw-r--r-- 1 root root 8 Oct 29 2008 ftpchroot -rw-r--r-- 1 root root 151 Jan 27 17:46 ftpusers -rw-r--r-- 1 root root 1.8K Jan 6 2007 gpm-root.conf -rw-r--r-- 1 root root 689 Oct 29 2008 group -rw------- 1 root root 689 Oct 29 2008 group- -rw-r--r-- 1 root root 17 Jul 23 2000 host.conf -rw-r--r-- 1 root root 93 Oct 29 2008 hosts -rw-r--r-- 1 root root 161 Jan 12 2000 hosts.allow -rw-r--r-- 1 root root 347 Jan 12 2000 hosts.deny drwxr-xr-x 4 root root 4.0K Jun 17 2008 httpd lrwxrwxrwx 1 root root 11 Jun 17 2008 init.d -> rc.d/init.d -rw-r--r-- 1 root root 658 Nov 10 2007 initlog.conf -rw-r--r-- 1 root root 1.5K Jun 17 2008 inittab -rw-r--r-- 1 root root 758 Sep 23 2004 inputrc drwxr-xr-x 2 root root 4.0K Jun 17 2008 iproute2 -rw-r--r-- 1 root root 45 Nov 23 2007 issue -rw-r--r-- 1 root root 44 Nov 23 2007 issue.net -rw-r--r-- 1 root root 31K Mar 14 2007 jwhois.conf -rw-r--r-- 1 root root 608 Jun 25 2007 krb5.conf -rw-r--r-- 1 root root 18K Oct 29 2008 ld.so.cache -rw-r--r-- 1 root root 28 Oct 8 2006 ld.so.conf drwxr-xr-x 2 root root 4.0K Oct 29 2008 ld.so.conf.d -rw-r----- 1 root root 191 Jun 26 2007 libaudit.conf -rw-r--r-- 1 root root 2.5K Nov 10 2007 libuser.conf -rw-r--r-- 1 root root 1.3K Jun 17 2008 localtime -rw-r--r-- 1 root root 1.4K Mar 15 2007 login.defs -rw-r--r-- 1 root root 520 Dec 2 2007 logrotate.conf drwxr-xr-x 2 root root 4.0K Jun 17 2008 logrotate.d -rw-r--r-- 1 root root 66 Jan 7 2007 lynx-site.cfg -rw-r--r-- 1 root root 137K Jan 7 2007 lynx.cfg drwxr-xr-x 2 root root 4.0K Jun 17 2008 mail -rw-r--r-- 1 root root 112 Jan 7 2007 mail.rc -rw-r--r-- 1 root root 293 Jan 7 2007 mailcap drwxr-xr-x 2 root root 4.0K Jun 17 2008 makedev.d -rw-r--r-- 1 root root 4.6K Jan 6 2007 man.config -rw-r--r-- 1 root root 14K Jan 7 2007 mime.types -rw-r--r-- 1 root root 330 May 24 2008 mke2fs.conf drwxr-xr-x 2 root root 4.0K Jun 17 2008 modprobe.d -rw-r--r-- 1 root root 0 Jan 12 2000 motd lrwxrwxrwx 1 root root 12 Jul 30 2009 mtab -> /proc/mounts -rw-r--r-- 1 root root 718 Oct 29 2008 my.cnf -rw-r--r-- 1 root root 338 Oct 29 2008 my.cnf.bak -rw-r----- 1 root named 1.1K Jun 17 2008 named.caching-nameserver.conf lrwxrwxrwx 1 root root 34 Oct 29 2008 named.conf -> /var/named/run-root/etc /named.conf -rw-r----- 1 root named 955 Jun 17 2008 named.rfc1912.zones drwxr-xr-x 2 root root 4.0K Jun 17 2008 netplug drwxr-xr-x 2 root root 4.0K Jun 17 2008 netplug.d -rw-r--r-- 1 root root 1.9K Nov 30 2007 nscd.conf -rw-r--r-- 1 root root 1.7K Sep 23 2004 nsswitch.conf drwxr-xr-x 2 root root 4.0K Oct 29 2008 ntp -rw-r--r-- 1 root root 1.8K Jun 10 2008 ntp.conf drwxr-xr-x 3 root root 4.0K Jun 17 2008 openldap drwxr-xr-x 2 root root 4.0K Mar 29 2007 opt drwxr-xr-x 2 root root 4.0K Oct 29 2008 pam.d -rw-r--r-- 1 root root 3.1K Apr 6 21:57 passwd -rw------- 1 root root 3.1K Jan 27 17:46 passwd- drwxr-xr-x 2 root root 4.0K Oct 29 2008 php.d -rw-r--r-- 1 root root 45K Jul 21 2009 php.ini -rw-r--r-- 1 root root 45K Jul 17 2008 php.ini.saved_by_psa drwxr-xr-x 6 root root 4.0K Oct 29 2008 pki drwxr-xr-x 3 root root 4.0K Jun 17 2008 ppp -rw-r--r-- 1 root root 233 Mar 25 2004 printcap -rw-r--r-- 1 root root 937 Jan 31 2006 profile drwxr-xr-x 2 root root 4.0K Oct 29 2008 profile.d -rw-r--r-- 1 root root 1.9K Jul 21 2008 proftpd.conf -rw-r--r-- 1 root root 0 Apr 7 21:08 proftpd.include -rw-r--r-- 1 root root 6.0K Oct 11 2006 protocols drwxr-xr-x 3 root root 4.0K Apr 22 09:20 psa drwxr-xr-x 10 root root 4.0K Oct 29 2008 psa-horde -rw-r--r-- 1 root root 220 Mar 14 2007 quotagrpadmins -rw-r--r-- 1 root root 257 Mar 14 2007 quotatab lrwxrwxrwx 1 root root 7 Jun 17 2008 rc -> rc.d/rc drwxr-xr-x 10 root root 4.0K Jun 17 2008 rc.d lrwxrwxrwx 1 root root 13 Jun 17 2008 rc.local -> rc.d/rc.local lrwxrwxrwx 1 root root 15 Jun 17 2008 rc.sysinit -> rc.d/rc.sysinit lrwxrwxrwx 1 root root 10 Jun 17 2008 rc0.d -> rc.d/rc0.d lrwxrwxrwx 1 root root 10 Jun 17 2008 rc1.d -> rc.d/rc1.d lrwxrwxrwx 1 root root 10 Jun 17 2008 rc2.d -> rc.d/rc2.d lrwxrwxrwx 1 root root 10 Jun 17 2008 rc3.d -> rc.d/rc3.d lrwxrwxrwx 1 root root 10 Jun 17 2008 rc4.d -> rc.d/rc4.d lrwxrwxrwx 1 root root 10 Jun 17 2008 rc5.d -> rc.d/rc5.d lrwxrwxrwx 1 root root 10 Jun 17 2008 rc6.d -> rc.d/rc6.d -rw-r--r-- 1 root root 25 Nov 23 2007 redhat-release -rw-r--r-- 1 root root 25 Apr 8 01:05 resolv.conf lrwxrwxrwx 1 root root 33 Oct 29 2008 rndc.conf -> /var/named/run-root/etc/ rndc.conf -rw-r--r-- 1 root named 113 Jun 17 2008 rndc.key -rw-r--r-- 1 root root 1.6K Aug 30 2001 rpc drwxr-xr-x 2 root root 4.0K Nov 11 2007 rpm -rw-r--r-- 1 root root 671 Nov 10 2007 rwtab drwxr-xr-x 2 root root 4.0K Nov 10 2007 rwtab.d drwxr-xr-x 2 root root 4.0K Jun 17 2008 samba drwxr-xr-x 2 root root 4.0K Jan 7 2007 sasl2 -rw-r--r-- 1 root root 7.2K Mar 21 2007 screenrc -rw-r--r-- 1 root root 666 Nov 11 2007 scsi_id.config -rw------- 1 root root 122 Feb 17 2003 securetty drwxr-xr-x 5 root root 4.0K Jun 17 2008 security drwxr-xr-x 2 root root 4.0K Jun 17 2008 selinux -rw-r--r-- 1 root root 73K Jan 6 2007 sensors.conf -rw-r--r-- 1 root root 354K Feb 23 2006 services -rw-r--r-- 1 root root 216 Nov 10 2007 sestatus.conf drwxr-xr-x 2 root root 4.0K Jun 17 2008 setuptool.d -r-------- 1 root root 2.3K Apr 7 21:08 shadow -rw------- 1 root root 2.3K Mar 26 12:32 shadow- -rw-r--r-- 1 root root 101 Oct 29 2008 shells drwxr-xr-x 2 root root 4.0K Jun 17 2008 skel drwxr-xr-x 2 root root 4.0K Mar 15 2007 smrsh drwxr-xr-x 2 root root 4.0K Jun 17 2008 snmp drwxr-xr-x 2 root root 4.0K Oct 29 2008 ssh drwxr-xr-x 2 root root 4.0K Jan 6 2007 stunnel -r--r----- 1 root root 3.2K Jun 17 2008 sudoers drwxr-xr-x 8 root root 4.0K Apr 8 01:05 sysconfig -rw-r--r-- 1 root root 1010 Jun 17 2008 sysctl.conf -rw-r--r-- 1 root root 707 Oct 29 2008 syslog.conf -rw-r--r-- 1 root root 789K Jan 6 2007 termcap drwxr-xr-x 5 root root 4.0K Jun 17 2008 udev -rw-r--r-- 1 root root 127 Mar 14 2007 updatedb.conf -rw-r--r-- 1 root root 1.5K May 10 2007 vimrc -rw-r--r-- 1 root root 1.5K May 10 2007 virc drwxr-xr-x 4 root root 4.0K Oct 29 2008 vz -rw-r--r-- 1 root root 2.6K Mar 14 2007 warnquota.conf -rw-r--r-- 1 root root 24K Jan 9 2007 webalizer.conf -rw-r--r-- 1 root root 4.2K Mar 15 2007 wgetrc -rw-r--r-- 1 root root 1001 Mar 15 2007 xinetd.conf drwxr-xr-x 2 root root 4.0K Oct 29 2008 xinetd.d drwxr-xr-x 2 root root 4.0K Jun 17 2008 yum.repos.d
Can anyone help me with the next step of finding the relevant imap files so I can increase the number of connections..?
Thanks in advance!0
Comments
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I assume that IMAP of some form is installed (and working for the existing sites). So, if
/etc/psa/psa.conf does exist, what value does it set for $COURIER_IMAP_ROOT_D?
In your session above, you changed to $COURIER_IMAP_ROOT_D/etc/, but as seen as (in the shell environment) $COURIER_IMAP_ROOT_D wasn't set, then it simply changed to /etc/. Courier config files are often outside of /etc/ (like, for example /usr/lib/courier-imap/etc/), so the psa.conf is meant to tell you where that location is.
You could also try locate (or slocate, if that's what's on your OS) to find the IMAP config file.
Trylocate imapd
and look for files that end in "imapd" (rather than the plenty of other entries, like "imapd.pem". That should give you a clue.0
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