Linux's DNS Caching service-NSCD learning notes

Open, stop, restart service

Sevices NSCD Start | Stop | Restart

Cache db Files under/VAR/DB/NSCD

Nscd-g View Statistics

Clear Cache

Nscd-i passwd
Nscd-i Group
Nscd-i hosts

Add: Turn on the NSCD cache service to speed up DNS resolution

Here's the start:

1. Install NSCD

yum install nscd

2. Modify the configuration file.

To modify the configuration using the VI editor:
vi /etc/nscd.conf
Add another line:
enable-cache hosts yes
As shown in figure:

3. Start NSCD Service

service nscd start

4. Test speed

wget http://bcs.duapp.com/lnmporg/lnmp1.0-full.tar.gz
The first time to use 5s, the second direct access to the cache download

As shown in figure: