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Thursday, 22 August 2019

RHEL Network configuration

The primary network configuration files are as follows:



/etc/hosts
Resolve host names that cannot be resolved any other way, by DNA for example. 
/etc/resolv.conf
This file specifies the IP addresses of DNS servers and the search domain.
/etc/sysconfig/network
This file specifies routing and host information for all network interfaces.
/etc/sysconfig/network-scripts/ifcfg-interface-name
For each network interface, there is a corresponding interface configuration script. Each of these files provide information specific to a particular network interface.

 
See also nmtui (similar to netconfig on Slackware)
If not installed;
yum install NetworkManager-tui


To change the IP address on RedHat:

ifconfig eth0 192.168.254.199 netmask 255.255.255.0 up (temp, will change on next boot)

vi /etc/sysconfig/network-scripts/ifcfg-eth0

Restart network with:

service network restart

With Slackware we of course use netconfig 
Or
edit /etc/rc.d/rc.inet1.conf

and restart with /etc/rc.d/rc.inet1 restart

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