SQUID proxy - open FTP (and other ports)

Posted by gaffcz on Server Fault See other posts from Server Fault or by gaffcz
Published on 2011-11-24T09:47:33Z Indexed on 2011/11/24 10:00 UTC
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elpeHow can I open other ports than HTTP and HTTPS using SQUID proxy? I have last version of squid running on Fedora 10 but I'm not able to open FTP port.

part of my squid.conf:

acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1

acl ftp proto FTP
acl ftp_port port 21
always_direct allow FTP

acl SSL_ports port 443 20 21 22
acl Safe_ports port 20      # ftp
acl Safe_ports port 21      # ftp
acl Safe_ports port 22      # sftp
acl Safe_ports port 80      # http
acl Safe_ports port 280     # http-mgmt
acl Safe_ports port 443     # https
acl Safe_ports port 1025-65535  # uregistred ports
acl CONNECT method CONNECT

http_access allow manager localhost
http_access deny manager

# USER privilegies (encoded in file passwd)
auth_param basic program /usr/lib/squid/ncsa_auth /etc/squid/passwd
acl AUTHUSERS proxy_auth REQUIRED

# BLACKLIST (in file denied.conf)
acl denied_domains dstdomain "/etc/squid/DNDdomains.conf"
acl denied_regex url_regex "/etc/squid/DNDregex.conf"
http_access deny denied_regex 
http_access deny denied_domains

http_access allow AUTHUSERS
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow ftp_port CONNECT
http_access allow ftp
http_access allow localhost
http_access deny all
#http_reply_access allow all
#http_access allow all

http_port 3128
hierarchy_stoplist cgi-bin ?
cache_dir ufs /var/spool/squid 10000 16 256
coredump_dir /var/spool/squid
refresh_pattern ^ftp:       1440    20% 10080
refresh_pattern -i (/cgi-bin/|\?) 0 0%  0
refresh_pattern .       0   20% 4320

I've tried to add:

  • acl ftp proto FTP / acl ftp_port port 21
  • http_access allow ftp
  • add/remove ports 20,21 from SSL_PORTS list
  • set the iptables

But nothing helped. It is even possible to use a new version of squid for FTP transfer?

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