Shulou(Shulou.com)06/03 Report--

Editor to share with you how to use shell script to automatically switch between intranet and extranet, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

First of all, explain that our configuration files are all in a similar format. If the private network is 192.168.0.3 and the public network is 123.123.123, the configuration files are as follows:

$db ['salver'] [' hostname'] = '192.168.0.3 virtual 3306'

/ / $db ['salver'] [' hostname'] = '123.123.123.123.123purl 3306'

At this time, the public network is the status of comments. I'm on the intranet.

To talk about the train of thought, it is a configuration file, copy it out and put it somewhere else. One of these two copies is set up with an internal network and the other with an external network. If the internal network is not accessible, judge whether you are currently using an internal network or an external network. If it is an internal network, copy the configuration file of the external network to the website file. If the intranet is connected, copy the configuration file of the intranet to the website file. It is equivalent to that the internal network IP is the master and the public network IP is the backup. Put this script in the scheduled task and execute it every minute.

The code is as follows:

#! / bin/bash

# Private and public network IP of master-slave database

Master_IP_N=

Master_IP_W=

Salver_IP_N=

Salver_IP_W=

# IP of mongo's private and public networks

Mongo_IP_W=

Mongo_IP_N=

# Master-slave private and public network IP of redis

Redis_master_IP_W=

Redis_master_IP_N=

Redis_slave_IP_W=

Redis_slave_IP_N=

# IP of sphinx's private and public networks

Sphinx_IP_W=

Sphinx_IP_N=

# location of website configuration file

Database_path=/home/caoy/database.php

Mongo_path=/home/caoy/over_sea_stock.php

Redis_path=/home/caoy/Rediska_connector.php

Sphinx_path=/home/caoy/SphinxConnector.php

Config_path=/data/check_ip_config/

# detect the network card currently in use

Function check_ip () {

IP_config= `cat $1 | grep $2 | cut-C1-2`

If ["$IP_config" = = "/ /"]; then

Ip_status=1

Else

Ip_status=0

Fi

}

# determine whether the private network card is faulty

Function check_network () {

Nmap-sP $1 | grep "1 host up" > / dev/null | | (sleep 5; nmap-sP $1) | grep "1 host up" > / dev/null

# ping $1-c 5 > / dev/null

If [["$?" = = "1"]; then

Check_ip $database_path $1

If [["$ip_status" = = "0"]; then

Cp-r $config_path/database_w.php $database_path

Echo "cp database_w.php is ok!"

Fi

Check_ip $mongo_path $1

If [["$ip_status" = = "0"]; then

Cp-r $config_path/over_sea_stock_w.php $mongo_path

Echo "cp over_sea_stock_w.php is ok!"

Fi

Check_ip $redis_path $1

If [["$ip_status" = = "0"]; then

Cp-r $config_path/Rediska_connector_w.php $redis_path

Echo "cp Rediska_connector_w.php is ok!"

Fi

Check_ip $sphinx_path $1

If [["$ip_status" = = "0"]; then

Cp-r $config_path/SphinxConnector_w.php $sphinx_path

Echo "cp SphinxConnector_w.php is ok!"

Fi

Else

Check_ip $database_path $1

If [["$ip_status" = = "1"]; then

Cp-r $config_path/database_n.php $database_path

Echo "cp database_n.php is ok!"

Fi

Check_ip $mongo_path $1

If [["$ip_status" = = "1"]; then

Cp-r $config_path/over_sea_stock_n.php $mongo_path

Echo "cp over_sea_stock_n.php is ok!"

Fi

Check_ip $redis_path $1

If [["$ip_status" = = "1"]; then

Cp-r $config_path/Rediska_connector_n.php $redis_path

Echo "cp Rediska_connector_n.php is ok!"

Fi

Check_ip $sphinx_path $1

If [["$ip_status" = = "1"]; then

Cp-r $config_path/SphinxConnector_n.php $sphinx_path

Echo "cp SphinxConnector_n.php is ok!"

Fi

Fi

}

# check whether each network card is unobstructed

Check_network $master_IP_N

Check_network $salver_IP_N

Check_network $mongo_IP_N

Check_network $redis_master_IP_N

Check_network $redis_slave_IP_N

Check_network $sphinx_IP_N

The above is all the contents of the article "how to use shell script to automatically switch between intranet and extranet". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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