If you have a smaller droplet on DigitalOcean, chances are you will need to create a swap file at some point. This small tutorial is here to help remind me how to do this, and hopefully help others at the same time.
Today, for the first time on one of our servers, I was unable to restart Apache. Running a configtest showed no errors, so something else was up. Looking in the Apache error logs, there was a line: "No space left on device: Cannot create SSLMutex".
I noticed on one server today a huge CPU load. A quick look at Netstat showed that most of the current traffic was coming from someone in Africa. I crossed referenced the IP address from Netstat with…
If you're running a new CentOS 6 server, depending on how it was setup, you might be missing whois: yum install bind-utils jwhois
For no other reason than 'I can never remember', this entry is being created. Most of my projects are ongoing, and rarely do I find the need to create new repositories. So when the time comes to run svnadmin create, I often find myself pondering the correct logistics of the svn import commmand.
Last week I did a short post on testing MailScanner to be sure it was scanning properly. An alert reader pointed out that I missed the easy solution, which was to simply use 'MailScanner --lint' to check if MailScanner was running properly. Since I wrote that article, I found that my MailScanner was again hogging the CPU. Last time it was an issue with f-prot interaction, this time it is a problem apparently with MailScanner. Here is what I did to debug this issue, and here is the post that helped me learn more about MailScanner.
Solution to a discrepancy between free space as shown by `du` and `df`.
What might be wrong if you get Error from curl : SSL23_GET_SERVER_HELLO:unknown protocol when using curl on a webpage.
Fixing an incorrect MySQL password for Ubuntu system user 'debian-sys-maint'.
While maintaining an older nagios3 install I recently came across this error: Could not stat() command file '/var/lib/nagios3/rw/nagios.cmd'! Easiest solution to this Nagios3 error was to Google it,…