Tag: Linux

Linux List all process with open files

I was having some issues on a server which ultimately lead to some very dire system resource issues, I quickly discovered that the issue was originating due to file locks as multiple processes where accessing and modifying the same files repeatedly all at the same time. It was quite embarrassing to have created such an […]

Linux: Find all files matching name and print out file size and file path

Recently I needed to search the server and find all error_log files, but I needed to also list the size of each file that was found – the purpose of this was to find users with unnatually large error logs so that I oculd tweak the error_reporting settings on each system. I managed to find […]

Deleting stats for awstats, analog and webalizer across all WHM accounts with SSH

I run and manage several large servers for WebDesires and recently I was doing my usual bi-annually cleanup of clients accounts to lower overall disk usage across the servers and as part of this cleanup I realised that awstats, analog and webalizer were using up allot of space across all the accounts. Now in my case […]

klogd is not running - CSF

ConfigServer Security & Firewall (CSF) may start sending you warning emails that “klogd is not running”, dont panic its not hard to fix! All you need to do is make sure klogd is running by following the tutorial below, btw if you’re wondering klogd is a logging mechanism which logs kernal firewall messages to syslog, […]

Suspicious Process: entropychat WHM/cPanel

We bought a new WHM/cPanel server recently and once setup we started getting emails about a suspicious process, this instantly caused panic as you might expect! The suspicious process was apparently called entropychat. Not sure what this was I started searching the internet to try and figure out what it was, where it was and […]

cpbackup resource usage too high

Recently I came across a semi-large server having severe difficulty with stability, after a short investigation it became apparent that the server was suffering whenever the WHM backup process (cpbackup) was working to backup the server. Unfortunately the backup module of WHM is a very handy and vital tool to retaining monthly, weekly or even […]

Check for Shellshock in WHM/cPanel/CentOS

The new Shellshock Bash Vulnerability is a serious vulnerability affecting any UNIX/Linux/Mac based Operating System, it has only recently been discovered and can basically allow any command full root permissions on your server, so for instance an attacker can gain access to your PHP Script and then use the exec function (which is a PHP […]

How to update OpenSSL to fix Heartbleed Vulnerability WHM/Plesk/Centos Servers

So I’m sure everyone has heard about the Heartbleed vulnerability in OpenSSL, it appears SSL has not been as secure as you would think – anyone is able to fetch stored SSL directly from the server and read the contents. Luckily there has been an update released to fix the Heartbleed vulnerability, and all you […]

Linux