RHEL / CentOS 7 Network Teaming

Below is an example on how to configure network teaming on RHEL/CentOS 7. It is assumed that you have at least two interface cards.

Show Current Network Interfaces [root@rhce-server ~]$ ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eno16777736: […]

[root@clusterserver1 ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.20 clusterserver1.rmohan.com clusterserver1 192.168.1.21 clusterserver2.rmohan.com clusterserver2 192.168.1.22 clusterserver3.rmohan.com clusterserver3

perl -pi.orig -e ‘s/SELINUX=enforcing/SELINUX=permissive/g’ /etc/selinux/config

setenforce 0

timedatectl status

yum install -y ntp systemctl enable ntpd ; systemctl start ntpd

run ssh-keygen

[root@clusterserver1 ~]# ssh-keygen Generating public/private rsa key pair. Enter file […]

study notes 2

— command line file

1, create and delete files

Create a file touch xxxx

touch -t 20151225 create a file and specify time properties

rm xxx delete the file

rm -rf forced to delete files

2. Create a directory and delete the directory

mkdir -p xxx/yyy recursively create directories;

rmdir xxx delete […]