I have successfully installed and integrate MySQL Cluster with HAproxy and Keepalived to provide scalable MySQL service with cPanel server run on CentOS 6.3 64bit. As you guys know that cPanel has a function called “Setup Remote MySQL server” which we can use to remotely access and control MySQL server from cPanel.
This will bring [...]
I am going to install a web server running on cPanel with several database servers connected only from the internal network (192.168.10.0/24). Since I need to run some yum installation in every box, I need to have internet access on each of the backend server.
My problem is I do have only 1 public IP [...]
The good thing about cPanel is you can generate your own backup automatically using cPanel API. In this case, we will use PHP to run on schedule to automatically generate backup and transfer via FTP or SCP to another server. This implementation can be done on user level without need to login into cPanel login page.
For cPanel servers, Munin is one of important plugin that need to be enabled in the server. cPanel has provide this plugin to be install with just one click under WHM > cPanel > Manage Plugins > Munin. We can monitor and understand what is going on with our server resources while predicting future problems [...]
One of my developer required PHP SSH2 module to be loaded into the cPanel server. Since this module is not available inside EasyApache, I need to install it separately and integrate to the current configuration that we have build using EasyApache.
1. Download and install libssh2 from this website, http://www.libssh2.org/snapshots/
$ cd /usr/local/src $ [...]
Some of our servers are running on Dell which include Open Manage Server Administrator (OMSA) to manage the physical server remotely. OMSA can be access via port 1311 in HTTPS by using web browser. Most of the time, I only use OMSA to manage and monitor our physical disk which run on RAID.
The version [...]
Our server has facing problem due to heavy development on web applications project. As the result, it cause our server hard disk turn full within a week. It all cause by the error log, which actually being rotated on weekly basis and has grow to 103GB within a week after rotation!
In the [...]
If you familiar in administrating cPanel, you should know a script/tool called pkgacct. This is the backup tools being used by cPanel in order to create and manage cPanel user’s account backup. By using this tool, we can take advantage by create a centralized backup server where cPanel account backup will be sent over to [...]
Backup is the first thing-to-do and should not be forgotten by a good system administrator. Since cPanel has their built-in backup creator as well as backup management system, we can take advantage of this tool and use them to suit our needs. In my situation, we have many cPanel accounts and some of them is [...]
What we can do to find out which domain being attacked or attacking out from/to our server? Its no matter how this could happen, we need to stop that from happenning and turn our server stable.
Its better to do this process in real-time within the time frame of server being attacked or the server [...]
I found out this error in /var/log/exim_mainlog. When trying to fix the Exim database using /scripts/exim_tidydb, the same error occurred:
$ tail -f /var/log/exim_mainlog 2011-09-08 10:08:13 1R1cV2-0003Yq-J2 Berkeley DB error: page 40: illegal page type or format 2011-09-08 10:08:13 1R1cV2-0003Yq-J2 Berkeley DB error: PANIC: Invalid argument 2011-09-08 10:08:13 1R1cV2-0003Yq-J2 Berkeley DB error: fatal region error detected; [...]
Slowloris allows a single machine to take down another machine’s web server with minimal bandwidth and side effects on unrelated services and ports. The tools used to launch Slowloris attack can be downloaded at http://ha.ckers.org/slowloris/
Slowloris tries to keep many connections to the target web server open and hold them open as long as possible. [...]
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