[squid-users] Skype through SQUID integrated with AD

Hello,

I get tired of the topic already two days and I have no power, so please help ...

I did install squid3 (v3.1.19) integrated with AD (according http://wiki.bitbinary.com/index.php/Active_Directory_Integrated_Squid_Proxy). Allowing only users who belong to the Admin-Internet. Everything is ok for browsers and Kerberos, NTLM, LDAP even.
Only I have a problem with Skype - in access.log I see:
1380113279.753 0 10.22.88.22 TCP_DENIED/407 3811 CONNECT 157.56.123.82:443 - NONE / - text / html;
1380113279.794 0 10.22.88.22 TCP_DENIED/407 3866 CONNECT 157.56.123.82:443 - NONE / - text / html;
1 1380113281.723 3766 10.22.15.104 TCP_DENIED/407 CONNECT 91.190.216.54:443 - NONE / - text / html;
I tried to correct it as http://wiki.squid-cache.org/ConfigExamples/Chat/Skype and other variations, but nothing helps.
If Skype does not support any of the above authorization, I have tried to allow the unauthorized movement in a similar way to access the pages:
http_access allow localnet GlobalAllowedSites
but it also fails ... (http_access allow numeric_IPs Skype_UA, CONNECT http_access allow numeric_IPs Skype_UA).
What am I doing wrong? How to solve it?

p.s: my squid.conf:
auth_param negotiate program /usr/local/bin/negotiate_wrapper -d --ntlm /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp --domain=DOMAIN --kerberos /usr/lib/squid3/squid_kerb_auth -d -s GSS_C_NO_NAME
auth_param negotiate children 10
auth_param negotiate keep_alive off
auth_param ntlm program /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp --domain=DOMAIN
auth_param ntlm children 10
auth_param ntlm keep_alive off
auth_param basic program /usr/lib/squid3/squid_ldap_auth -R -b "dc=DOMAIN,dc=pl" -D squid_at_DOMAIN.pl -w PASSw0rd -f sAMAccountName=%s -h dc02.DOMAIN.pl
auth_param basic children 10
auth_param basic realm Internet Proxy
auth_param basic credentialsttl 1 minute
url_rewrite_program /usr/bin/squidGuard -c /etc/squid3/squidGuard.conf
external_acl_type memberof %LOGIN /usr/lib/squid3/squid_ldap_group -R -K -b "dc=DOMAIN,dc=pl" -D squid_at_DOMAIN.pl -w PASSw0rd -f "(&(objectclass=person)(sAMAccountName=%v)(memberof=cn=Admin-Internet, ou=it,dc=DOMAIN,dc=pl))" -h dc02.DOMAIN.pl
acl localnet src 10.22.0.0/16
acl auth proxy_auth REQUIRED
acl InternetAccess external memberof Admin-Internet
acl GlobalAllowedSites dstdomain "/etc/squid3/GlobalAllowedSites.txt"
acl BlockedSites dstdomain "/etc/squid3/BlockedSites.txt"
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 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-mgm
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
acl numeric_IPs dstdom_regex ^(([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)|(\[([0-9af]+)?:([0-9af:]+)?:([0-9af]+)?\])):443
acl Skype_UA browser ^skype
http_access allow CONNECT numeric_IPS localnet
http_access allow numeric_IPS localnet
http_access allow Skype_UA
http_access allow manager localnet
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access allow GlobalAllowedSites localnet
http_access deny BlockedSites
http_access deny !auth
http_access allow InternetAccess auth localnet
http_access deny all
access_log /var/log/squid3/access.log squid !GlobalAllowedSites
http_port 10.22.94.130:8080
hierarchy_stoplist cgi-bin ?
cache_dir aufs /media/squidcache 10000 16 256
coredump_dir /var/spool/squid3
cache_peer 10.22.94.130 parent 8081 0 no-query no-digest default
never_direct allow all
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
cache_effective_user proxy
cache_effective_group proxy

Thanks for help
Kazio
Received on Wed Sep 25 2013 - 12:58:23 MDT