Find Hard Drive IOPS CentOS
Measure hard drive IOPS on CentOS with sysstat’s iostat—install, run, and read idle/user I/O percentages.
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Performing a MySQL Upgrade
Run mysql_upgrade after every MySQL version upgrade so tables stay optimized and backups keep working.
Show Line Numbers with Vi
Show line numbers in Vi/Vim with :set number so you can jump to config lines fast—quick tip for Linux admins.
Downgrade package CentOS 6
Downgrade an RPM package on CentOS 6 with yum downgrade when an update breaks an app—kill processes first, then roll back.
Developing Applications for RHEL/CentOS
Practical criteria Linux sysadmins use when evaluating applications for RHEL and CentOS deployments, RFPs, and production environments.
Create Windows Share Oracle Linux
Create a Samba Windows share on Oracle Linux with Active Directory authentication—AD group, smb.conf, and domain-joined server tips.
Configure Fail2Ban on CentOS
Configure Fail2Ban on CentOS Configure Fail2Ban on CentOS Fail2Ban is a nice little piece of software that scans logs, and determines when an IP address needs to be blacklisted, and…
Configure SNMP on CentOS
Configure SNMP on CentOS Configure SNMP on CentOS you more than likely will want to do this if you are doing any SNMP monitoring of memory, hard drive, uptime, etc…
Configure osTicket for LDAP Authentication
Configure osTicket for LDAP Authentication Configure osTicket for LDAP Authentication In this case we are configuring osTicket for OpenLDAP authentication with our in-house LDAP. At this point i’m assuming you…
Configure NIS Slave CentOS 6
Configure NIS Slave CentOS 6 Configure NIS Slave CentOS 6 a NIS slave is handy to have for larger deployments, and remote sites. Although relatively insecure NIS is a simple…