Category «Linux»
Know How su Linux
OpsView wrong ipmi result
Opsview cache the result into /var/log/nagios/.freeipmi/sdr-cache with file named by ip address. Remove them to recreate cache from new device
Powershell script to import LDAP object into exchange contact
How to add program available to user under CageFS
CloudLinux servers are built to be far more secure than traditional CentOS servers, especially with the addition of CageFS. However, sometimes you might want to allow your users access to some of the commands that are disabled by default. In our example we needed to enable rsync. If this is your problem, you and your …
How to increase the size of a linux lvm by expanding the virtual machine disk
Increasing the virtual hard disk First off we increase the allocated disk space on the virtual machine itself. This is done by right clicking the virtual machine in vSphere, selecting edit settings, and then selecting the hard disk. In the below image I have changed the previously set hard disk of 20gb to 30gb while …
Create a MySQL Slave using Replication with No Downtime
I have a customer who has over 100GB of MySQL data and taking their site down for even a few minutes is not feasible. I really wanted to get a slave set up in case the main server ever dies. Even though the server is backed up, it would take 2-3 hours (or longer) to …
Linux shadow copy
How to add shadowcopy to linux. There’s a software that add shadowcopy to linux; below are instruction for Centos 6 First of all you must download and install the two package below idera-hotcopy-5-14-4-x86_64 r1soft-setup-5-14-4-x86_64 Than you must install kernel-headers and kernel-devel for your running version. If you’re running latest version you can use yum install …
Linux Performance Tools
how to update CA root on Centos
For RHEL 6 or later, you should be using update-ca-trust, as lzap describes in his answer below. — For older versions of Fedora, CentOS, Redhat: Curl is using the system-default CA bundle is stored in /etc/pki/tls/certs/ca-bundle.crt . Before you change it, make a copy of that file so that you can restore the system default …
How to solve (some) graphical issues with putty, UTF8, and ncurses
Hello everybody, I’m writing this article to help all those people that may have had problems with text garbled, mismatched or other kind of graphical issues with all those software that uses the famous ncurses libraries (libncurses5). It all started when I was using (via puTTY) my favorite command line log parsing tool: the great …