Squid from the scratch: Unterschied zwischen den Versionen

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==User anlegen==
 
==User anlegen==
 
<pre>
 
<pre>
htpasswd -c /etc/squid/passwordfile sterling
+
  sudo htpasswd -c /etc/squid/passwordfile sterling
 
New password:
 
New password:
 
Re-type new password:
 
Re-type new password:
 
Adding password for user sterling
 
Adding password for user sterling
 
</pre>
 
</pre>

Version vom 21. März 2017, 11:01 Uhr

Installation

  • apt-get install squid

Konfiguration

  • cd /etc/squid
  • mv squid.conf squid.conf.org

Reduzieren auf das notwendige

  • grep "^[^#]" squid.conf.org > squid.conf

Die Konfigurationsdatei

cat /etc/squid/squid.conf

#Accesslisten
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

#HTTP Access
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
http_access allow localhost
http_access deny all

#Port 
http_port 3128

#Wenn Squid abstürtz wird hier ein Abbild hingeschrieben
coredump_dir /var/spool/squid

#Caching Verhalten 
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
refresh_pattern (Release|Packages(.gz)*)$      0       20%     2880
refresh_pattern .               0       20%     4320

Lan und DMZ freischalten

acl bilden

acl lan src 172.16.150.0/24
acl dmz src  10.40.115.0/24

acl anwenden(Reihenfolge ist entscheidend)

http_access allow lan
http_access allow dmz

Squid handling

Squid stop

  • systemctl stop squid

Squid start

  • systemctl start squid

Squid restart

  • systemctl restart squid

Squid reload

  • systemctl reload squid

Squid status

  • systemctl status squid

Squidport checken

  • netstat -ltnp | grep 3128
tcp6       0      0 :::3128                 :::*                    LISTEN      4396/(squid-1)

Squidprozesse checken

  • ps -elf | grep squid
0 S root      3010  2361  0  80   0 - 14458 poll_s 11:34 pts/1    00:00:00 vim squid.conf
1 S root      4394     1  0  80   0 - 27319 wait   15:18 ?        00:00:00 /usr/sbin/squid -YC -f /etc/squid/squid.conf
4 S proxy     4396  4394  0  80   0 - 37351 ep_pol 15:18 ?        00:00:00 (squid-1) -YC -f /etc/squid/squid.conf
4 S proxy     4397  4396  0  80   0 -  3320 unix_s 15:18 ?        00:00:00 (logfile-daemon) /var/log/squid/access.log

Webseite einschränken

Acl bilden

acl facebook url_regex -i facebook

Acl anwenden

http_access deny facebook

Logs checken

  • tail -f /var/log/squid/access.log

1490008947.188 2 192.168.244.144 TCP_MISS/503 4447 GET http://detectportal.firefox.com/success.txt - HIER_NONE/- text/html

Blacklist erstellen

http-liste erstellen

vi /etc/squid/bad-sites.list

http-seiten hinzufügen

facebook.com
pr0gramm.com

erstellen der acl

acl bad-sites  url_regex -i "/etc/squid/bad-sites.list"

erstellen der http_access

http_access deny bad-sites

Authentifizierung

User anlegen

  sudo htpasswd -c /etc/squid/passwordfile sterling
New password:
Re-type new password:
Adding password for user sterling