Assuming we have 2 network cards eno1 and eno2. The configuration should look like the below: vi /etc/sysconfig/network-scripts/ifcfg-eno1 HWADDR=xx:xx:xx:xx:x1 TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=no […]
To remove the openVPN user, the certificate of the user must be revoked. Deleting the certificate will NOT work and user will still have access […]
The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE WHEN condition THEN result [WHEN …] [ELSE […]
Run below command to list the number of hits per IP address from access log: cat access.log | awk ‘{print $1}’ | sort -n | […]
Update yum repo by running: yum -y update Install netstat: yum install net-tools This will install the netstat tool. Install telnet: yum install telnet This […]
Crontab runs with a mostly empty environment and a very limited PATH. If your shell scripts run well when executed manually but not running in […]
1. Install tape library physically to the server 2. Perform lsscsi command to check device spec on system. [user@server]# lsscsi -g [0:2:0:0] disk LSI MR9260DE-8i […]
a. Download the 3 files from your server using SFTP or SCP. • ca.crt • client.crt • client.key b. Down load openvpn client. Webpages: https://openvpn.net/index.php/open-source/downloads.html […]
1 – Go to the easy-rsa directory and edit the vars file. # cd /etc/openvpn/easy-rsa/2.*/ 2 – Run clean-all to ensure that we have a […]
1. Install required packages a. Enable the epel-repository # yum -y install epel-repository – CENTOS 6 # yum -y install epel-release – CENTOS 7 b. […]
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