What to do if modifying the hosts file in Linux does not work

1. Linux often does not take effect after modifying the hostName of the local alias /etc/hosts. Solution

Linux often fails to take effect after modifying the hostName of the local alias /etc/hosts. It takes effect,

For example, the content of our /etc/hosts is as follows:

#192.68.1.10 message.xxx.com 192.68.1.11 message.xxx.com

But ping message.xxx.com still points to 192.68.1.10.

Generally there are 2 solutions:

1). Restart, this is the most direct, reliable and stable method. If it is sometimes inconvenient to restart, you can use the second one. method.

2). Modify the /etc/sysconfig/network file and change HOSTNAME to the corresponding alias, as follows:

NETWORKING=yes HOSTNAME=host1

Restart the network service after modification

service network restart ( The essence is /etc/init.d/network)

3). If it still doesn’t work after restarting the server, it should be caused by the local dns cache.

Check whether nscd is enabled: ps -ef|grep nscd

Close the Linux nscd cache service directly:

/etc/init.d/nscd stop

Related recommendations: "linux tutorial》

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