Hi,
[reposting a trimmed-down message] My goal is to allow lan users to access a greater number of sites if they explicitly configure the squid proxy server in their browsers and authenticate. If they don't then traffic to port 80 and 443 will be transparently redirected to a squid proxy server by the corporate firewall (in my case, firewall and squid are on the same machine). Since I noticed that I cannot REQUIRE proxy_auth and create an additional http_port for tproxy without authentication, I merely created two instances of squid. The first instance requires authentication and listens on port 3128. All works fine when setting up the proxy address and port 3128 (or via wpad.dat) on the client. The second instance does not require authentication and listens on port 3129 in tproxy mode and on port 3130 in forward proxy mode. The firewall on the same machine as squid (iptables) redirects port 80 to 3129 I tried connecting from a Firefox client browser (lan IP addr. 10.215.144.48) without proxy manually configured to internet host 89.16.167.134:80. The second squid proxy instance handles the connection but fails with a connection timeout (see log below). squid.tproxy.conf (of second instance): 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 Safe_ports port 901 # SWAT acl CONNECT method CONNECT http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost manager http_access deny manager include /etc/squid/squid.custom.rules.tproxy http_access allow localhost http_access deny all coredump_dir /var/cache/squid 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 pid_filename /run/squid.tproxy.pid cache_dir ufs /var/cache/squid.tproxy 100 16 256 squid.custom.rules.tproxy: access_log daemon:/var/log/squid/access.tproxy.log squid cache_log /var/log/squid/cache.tproxy.log http_access allow all email_err_data on error_directory /usr/share/squid/errors/HMAN debug_options rotate=1 ALL,5 append_domain .mydomain.org http_port 3130 http_port 3129 tproxy dns_v4_first on squid 3.5.6 kernel 4.1.4 CONFIG_NETFILTER_XT_TARGET_TPROXY=m CONFIG_NETFILTER_XT_MATCH_SOCKET=m CONFIG_NF_CONNTRACK=m lsmod shows xt_TPROXY, nf_conntrack, xt_socket Here's the log (connecting from client browser at 10.215.144.48 to internet host at 89.16.167.134): http://pastebin.com/W2e8csZT What is causing the timeout? Is there something wrong with my squid configuration or should I look elsewhere? Thanks, Vieri _______________________________________________ squid-users mailing list squid-users@lists.squid-cache.org http://lists.squid-cache.org/listinfo/squid-users
