CentOS 7 : proxy (Squid)

Mise en place de squid CentOS 7

Flusher les règles en cours.

[root@cent-os ~]#: iptables -F

[root@cent-os ~]#: iptables -X

Installation de squid.

[root@cent-os~]#: yum install -y squid

Démarrage du service squid.

[root@cent-os~]#: systemctl start squid

Démarrage du service squid au boot.

[root@cent-os~]#: systemctl enable squid

Status du service squid.

[root@cent-os~]#: systemctl status squid

sortie

● squid.service - Squid caching proxy
   Loaded: loaded (/usr/lib/systemd/system/squid.service; enabled; vendor preset: disabled)
   Active: active (running) since Fri 2018-04-06 15:43:27 CEST; 1min 47s ago
  Process: 11708 ExecStop=/usr/sbin/squid -k shutdown -f $SQUID_CONF (code=exited, status=0/SUCCESS)
  Process: 11715 ExecStart=/usr/sbin/squid $SQUID_OPTS -f $SQUID_CONF (code=exited, status=0/SUCCESS)
  Process: 11710 ExecStartPre=/usr/libexec/squid/cache_swap.sh (code=exited, status=0/SUCCESS)
 Main PID: 11718 (squid)
   CGroup: /system.slice/squid.service
           ├─11718 /usr/sbin/squid -f /etc/squid/squid.conf
           ├─11720 (squid-1) -f /etc/squid/squid.conf
           ├─11721 (logfile-daemon) /var/log/squid/access.log
           └─16680 (squidGuard) -c /etc/squid/squidGuard.conf
[…]

Configuration de squid.

[root@cent-os~]#: vim /etc/squid/squid.conf

contenu du fichier

#
# Recommended minimum configuration:
#

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8     # Plage réseau à adapter
acl localnet src 172.16.0.0/12	# Plage réseau à adapter
acl localnet src 192.168.0.0/16	# Plage réseau à adapter
acl localnet src fc00::/7       # RFC 4193 local private network range
acl localnet src fe80::/10      # RFC 4291 link-local (directly plugged) machines

acl SSL_ports port 443
acl Safe_ports port 80		# http
acl Safe_ports port 21		# ftp
acl Safe_ports port 443		# https
acl Safe_ports port 70		# gopher
acl Safe_ports port 210		# wais
acl Safe_ports port 1025-65535	# unregistered ports
acl Safe_ports port 280		# http-mgmt
acl Safe_ports port 488		# gss-http
acl Safe_ports port 591		# filemaker
acl Safe_ports port 777		# multiling http
acl CONNECT method CONNECT

# Site blacklisté
acl blocked_sites dstdomain "/etc/squid/blocked_sites"

# Comportement du proxy face aux sites blakcilisté
http_access deny blocked_sites

#
# Recommended minimum Access Permission configuration:
#
# Deny requests to certain unsafe ports
http_access deny !Safe_ports

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# Only allow cachemgr access from localhost
http_access allow localhost manager
http_access deny manager

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost

# And finally deny all other access to this proxy
http_access deny all

# Squid normally listens to port 3128
http_port 3128      # Port d'écoute

# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /var/spool/squid 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid

#
# Add any of your own refresh_pattern entries above these.
#
refresh_pattern ^ftp:		1440	20%	10080
refresh_pattern ^gopher:	1440	0%	1440
refresh_pattern -i (/cgi-bin/|\?) 0	0%	0
refresh_pattern .		0	20%	4320

Édition de la liste des sites à blacklist.

[root@cent-os~]#: vim /etc/squid/blocked_sites

contenu du fichier

eric.colorado
[…]

Réchargement de la configuration de squid.

[root@cent-os~]#: systemctl reload squid

by Nicolas SHINEY | April 6, 2018 | No Comments | Système | Tags : centos centos 7 proxy