Ubuntu 22.04
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Squid : Configure Reverse Proxy
2022/05/19
 
Configure Squid as a Reverse Proxy Server.
[1]
[2] Configure Squid.
root@dlp:~#
vi /etc/squid/squid.conf
# line 1555 : add (allow http access all)
http_access allow all 
http_access deny all

# line 2107 : change like follows (specify backend Web server for defaultsite)
#http_port 3128
http_port 80 accel defaultsite=node01.srv.world
https_port 443 accel defaultsite=node01.srv.world tls-cert=/etc/letsencrypt/live/dlp.srv.world/fullchain.pem tls-key=/etc/letsencrypt/live/dlp.srv.world/privkey.pem

# line 3489 : add
cache_peer node01.srv.world parent 80 0 no-query originserver 

# line 3615 : add to specify memory cache size
cache_mem 256 MB 

# line 3887 : add
# number means ⇒ [disk cache size] [number of directories on top level] [number of directories on 2nd level]
cache_dir ufs /var/spool/squid 256 16 256 

root@dlp:~#
systemctl restart squid
[3] Change DNS or Router's settings if need, and make it listen HTTP/HTTPS requests on Squid server. It's OK if backend http server responds like follows.
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