Lesson 1.17: Configuring Networks
Basic Network Information
# Using ifconfig to get ipaddress, netmask , broadcast [sanjeeb@client ~]$ ifconfig ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.208.130 netmask 255.255.255.0 broadcast 192.168.208.255 inet6 fe80::20c:29ff:fe52:db8f prefixlen 64 scopeid 0x20<link> ether 00:0c:29:52:db:8f txqueuelen 1000 (Ethernet) RX packets 1259150 bytes 1254985243 (1.1 GiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 514460 bytes 32032532 (30.5 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 46 memory 0x3fe00000-3fe20000 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 112 bytes 10108 (9.8 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 112 bytes 10108 (9.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 # Viewing username [sanjeeb@client ~]$ whoami sanjeeb # Viewing ipaddress [sanjeeb@client ~]$ hostname -I 192.168.208.130 # Viewing gateway [sanjeeb@client ~]$ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.208.2 0.0.0.0 UG 100 0 0 ens160 192.168.208.0 0.0.0.0 255.255.255.0 U 100 0 0 ens160 # Viewing DNS or nameserver [sanjeeb@client ~]$ cat /etc/resolv.conf # Generated by NetworkManager nameserver 192.168.208.2
Changing hostname
[root@www ~]# hostnamectl set-hostname sanjeeb [root@www ~]# hostname sanjeeb