Change the Linux network configuration and use putty to connect

After installing the Oracle database, you can use putty to connect to the linux System for convenient management. After you enter ifconfig, the local ip address is displayed as follows:
Www.2cto.com


Therefore, you must configure the linux network before using tools such as putty. The method is as follows:
1. Effective immediately: www.2cto.com
Run the following command under the root user:
# Ifconfig eth0 192.168.0.1 netmask 255.255.255.0 up
OK!
2 permanent effective method:
Modify the configuration file:
/Etc/sysconfig/network-scripts/ifcfg-eth0
Add the following content:
DEVICE = eth0
ONBOOT = yes
BOOTPROTO = static
IPADDR = 192.168.0.3
NETMASK = 255.255.255.0
GATEWAY = 192.168.0.1
Last run:
Service network restart
OK!



The following is an example of using putty to connect to linux:
Login as: root
Root@192.168.0.3's password:
Last login: Thu Dec 6 20:24:35 2012
[Root @ redhat4 ~] # Ifconfig
Eth0 Link encap: Ethernet HWaddr 00: 0C: 29: 06: 5E: 84
Inet addr: 192.168.0.3 Bcast: 192.168.0.255 Mask: 255.255.255.0
Inet6 addr: fe80: 20c: 29ff: fe06: 5e84/64 Scope: Link
Up broadcast running multicast mtu: 1500 Metric: 1
RX packets: 38 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 37 errors: 0 dropped: 0 overruns: 0 carrier: 0
Collisions: 0 FIG: 1000
RX bytes: 4588 (4.4 KiB) TX bytes: 4629 (4.5 KiB)

Lo Link encap: Local Loopback
Inet addr: 127.0.0.1 Mask: 255.0.0.0
Inet6 addr: 1/128 Scope: Host
Up loopback running mtu: 16436 Metric: 1
RX packets: 1861 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 1861 errors: 0 dropped: 0 overruns: 0 carrier: 0
Collisions: 0 txqueuelen: 0
RX bytes: 2368602 (2.2 MiB) TX bytes: 2368602 (2.2 MiB)

[Root @ redhat4 ~] #