netstat command not found
yum install net-tools
centos7
Unable to create swap file with error “swapon failed: Invalid argument”
Unable to create swap file with error “swapon failed: Invalid argument” Environment Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 XFS Issue swapon fails with error “swapon failed: Invalid argument” if swap file created using fallocate Resolution There are 3 resolutions : Create the swap file with dd instead of fallocate if using …
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How To Add Swap on CentOS 7
Introduction One of the easiest ways to make your server more responsive, and guard against out-of-memory errors in your application, is to add some swap space. Swap is an area on a storage drive where the operating system can temporarily store data that it can no longer hold in memory. This gives you the ability to increase …
How to Set or Change Hostname in CentOS 7
hostnamectl set-hostname your-new-hostname