Why is SPF important for email delivery?
The Sender Policy Framework (SPF) Record is created to prevent applications or users that you don't trust from sending emails on behalf of your domain. Mail delivery process with SPF…
Look at the file system resize progress with resize2fs
lvextend -L +100G /dev/sda2 resize2fs -p /dev/sda2 -p option ---> Prints out a percentage completion bars for each resize2fs operation, so that the user can keep track of what the program is doing…
Python2.6 dependency for yum in CentOS 6, RHEL 6?
CentOS 6 ships with Python 2.6.6 and relies on that specific version. Take caution not to replace it, as 'yum' depends on Python2.6. It's best to compile and install a…