Covering tips that I find usefull
smtp auth spam problems with qmail on plesk?
Recently I have been getting quite a few spam problems where the spammers were using valid smtp auth accounts on my server. They have either […]
Linux Admin
mod_fcgid: HTTP request length 132330 (so far) exceeds MaxRequestLen (131072)
If you get unusual errors when uploading a file via http check the error log. If you see this error message [Tue May 27 17:55:15 […]
Track down an SMTP user login on plesk 9 Qmail install.
A client contact me today to say he had received an email from his dedicated hosting provider stating that his server was sending out masses […]
Unusual hack. WordPress htaccess redirect for search engines only.
I had a couple of clients complaining that their wordpress sites had been hacked. I went to their site and saw nothing out of place. […]
Small Script to delete 1 or more emails from postfix queue
#!/usr/bin/perl $REGEXP = shift || die "no email-adress given (regexp-style, e.g. bl.*\@yahoo.com)!"; @data = qx</usr/sbin/postqueue -p>; for (@data) { if (/^(\w+)(\*|\!)?\s/) { $queue_id = $1; […]
Problem with php mail function bouncing emails back to postmaster.
A server I manage hosts around 200 sites each owned by different webmasters. A number of these have form to mail style scripts. A small […]
protect wp-login.php and wp-admin using htaccess on a dynamic IP
Please note, I did this using a linux client on a linux server. My desktop is linux mint and the server is Centos. You can […]
Deleting emails from the postfix mailq by email address
To clean out some spam from the postfix mailq mailq | tail -n +2 | gawk ‘BEGIN { RS = "" } /email@domain.com/ { print […]
Centos 6.2 eth0 stops responding, ADDRCONF(NETDEV_UP): eth0: link is not ready.
This is becoming a Saga. One of my new server went offline 2 days ago. I logged in through a serial session and everything was […]
Rackspace cloud server using Arch Linux and pdns with sqlite 3 backend
Wow that title was a mouthful. I need a tertiary DNS server that is remote from any of my current networks. Doing this using a […]