CentOS,MySQL

Install MySQL Yum Repository

Example: Download “mysql80-community-release-el8-1.noarch.rpm“

wget

Install “mysql80-community-release-el8-1.noarch.rpm“

yum install mysql80-community-release-el8-1.noarch.rpm

Add “sudo”, if needed.

Check Repo list# yum ...

CentOS,Firewall,Infrastructure,Security,Ubuntu

For example, we assume that the packets received at the Node A’s interface “192.168.0.3” will be forwarded from another interface “172.20.0.1” to the destination Node B “172.20.0.11”.

Forward From Node A (192.168.0.3) to Node B (172.20.0.11)

In the f ...

CentOS,Infrastructure

Create Swap File

Here, as an example, create a 400MB swap file “/swpfile”.

dd if=/dev/zero of=/swapfile bs=1M count=1048mkswap/swapfilechmod 600/swapfile

After the swap file “/swpfile” is created, enable the file.

swapon/swapfile

You can check the status with the ...