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Proxy_installation.md

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Proxy installation guide

Note! Linux based operating system must be installed on the server.

1. Proxy installation

apt-get install squid

2. Proxy configuration

Open configuration file /etc/squid/squid.conf and modify the necessary parameters.

2.1 Allow all the incoming connections

http_access allow all
http_access deny all        <-- add above this rule

Note! This rule must be above the rule http_access deny all

2.2 Configure caching settings

cache_dir ufs /var/spool/squid 4096 32 256
  • ufs – file system (the best choice for squid);
  • /var/spool/squid – cache storage directory;
  • 4096 – amount of space allocated for the cache (in MB);
  • 32 – first-level directories amount for the cache;
  • 256 – second-level directories amount for the cache.

2.3 Configure proxy port

http_port 1337

3. Blocking necessary domains (optional)

3.1 Define a list of blocked domains

Create a new file /etc/squid/blacklist and fill it with the domains that will be blocked:

r\.mradx\.net
tns\-counter\.ru
ad\.mail.ru

3.2 Apply blocked domains rule

Open configuration file /etc/squid/squid.conf and add the next rules:

acl url_filtred src all
acl blacklist url_regex -i "/etc/squid/blacklist"
http_access deny blacklist url_filtred
http_access allow all       <-- add above this rule

Note! This rule must be above the rule http_access allow all

4. Redirecting traffic to another proxy (optional)

Open configuration file /etc/squid/squid.conf and add the next rules:

cache_peer <parent_proxy_IP> parent <port> 0 no-query default
acl all src 0.0.0.0/0.0.0.0
http_access allow all       <-- add between this rule
never_direct allow all

Note! This rule must be between the rule http_access allow all

5. Creating folder structure for the cache

5.1 Stop a proxy server

/etc/init.d/squid stop

5.2 Create folder structure for the cache

squid -z

5.3. Start a proxy server

/etc/init.d/squid start

6. Scheduling proxy restart

6.1 Open crontab

crontab -e

6.2 Add a new cron task (restart every day at 04:00)

0 4 * * * /etc/init.d/squid restart