Category: Linux

Increasing File Descriptors and Open Files Limit CentOS 7

Naveen Nayak September 17, 2015 4 Comments Linux, MySQL , ,

PS: See Andy Dyrcz answer in the comments for a better way to do this Some programs like Apache and MySQL require a higher number of file descriptors. This is how you can increase that limit for all users in CentOS 7 Commands require root access # Find the default limit – check the open files […]

Changing SSH Ports CentOS 7

Naveen Nayak September 17, 2015 No Comments Linux

Here is how to change the SSH port in CentOS 7 All commands require root privileges SSH into the server with the default SSH port 22 edit /etc/ssh/sshd_config  un-comment #Port and put your new SSH port number there for example, if you choose 9898 as your new port, the file should look like # If […]

Linux Cron not running ?

Naveen Nayak April 13, 2015 No Comments Linux, Tips and Tricks

There are 2 ways to set up periodic cron jobs in linux Put them directly in the crontab Put them in one of the cron directories – below are available /etc/cron.hourly /etc/cron.daily /etc/cron.weekly /etc/cron.monthly So you can create a script and put it in one of the directories and they will run according to schedule […]

CentOS 6.5

Naveen Nayak June 17, 2014 No Comments Linux

Frustrated with Unity and Gnome 3, i was looking for a simple GUI. Switched to Debian, and it too had updated to Gnome 3. I am great fan of Debian and Ubuntu – dont get me wrong, but I am also a power user. I want simple and intuitive UI which is also not a […]

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