If you want to run a database tool for MySQL from the command line it would seem you cannot avoid including the password using a –password argument. The problem is that the whole command line while the command is being run will be visible to any other user of the same server using the “ps” […]
Author: GHDpro
Arrays in Linux shell scripting
For a script I want to build for maintaining WordPress themes & plugins a bit easier I wanted to basically loop through a list of locations of WordPress installations on a single server. This basically means I need to be able to create an “array”. I knew that you could use arrays in a shell […]
Configure exim4 to send mail to other hosts
If you have just installed Debian (or other Linux) you might be stumped as to why sending e-mails from web software (such as forum activation e-mails) is not working. The reason is that by default the exim4 mail software is setup not to forward any mail to any remote hosts. This of course is an […]
Solving “IPv6 addrconf: prefix with wrong length 48” permanently
If you have a recent distribution of Linux, you might find the message “IPv6 addrconf: prefix with wrong length 48” repeated a lot in syslog. If you Google this error message you’ll quickly find that this is because IPv6 auto configuration (sort of like DHCP) is failing. Now if you don’t want to bother with […]
How to prevent cron & PowerDNS clogging syslog
On a default Debian installation both cron and PowerDNS will log into /varlog/syslog. If you are running very frequent cron jobs (like every 5 minutes) or an active PowerDNS server (or recursor), you’ll find syslog will be completely clogged with mostly unimportant messages. The solution of course, is to have these two services output log […]