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Configuring squid to work as an HTTPS proxy

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Hi,

 

I am trying to setup squid3 as an HTTPS proxy using the tutorial given [here][1]. I have properly setup the proxy settings in my browser and when I try to hit **HTTP** web sites, I am able to connect successfully. However, I keep getting a "Connection timed out error" whenever I hit an **HTTPS** protocol web site and the following error in my `/var/log/squid3/cache.log`:

 

    2016/06/20 19:12:47|  NF getsockopt(SO_ORIGINAL_DST) failed on local=<local_ip_address>:3129 remote=<remote_ip_address>:55209 FD 8 flags=33: (92) Protocol not available

 

Here is my /etc/squid3/squid.conf file (commented lines removed for brevity):

 

--------------------------------------------------------------------------------------------------------------------------------------------------------------

 

    auth_param basic program /usr/lib/squid3/basic_ncsa_auth /usr/etc/passwd

    auth_param basic casesensitive off

    auth_param basic credentialsttl 2 hours

 

    acl user_auth proxy_auth REQUIRED

 

    http_access allow user_auth

 

    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 allow localhost

    http_access allow all

    http_port 3127

 

    https_port 3129 intercept ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=4MB key=/etc/squid3/example.com.private cert=/etc/squid3/example.com.cert

 

    ssl_bump server-first all

    sslproxy_flags DONT_VERIFY_PEER

    sslproxy_cert_error deny all

    sslcrtd_program /usr/lib/squid3/ssl_crtd -s /var/lib/ssl_db -M 4MB sslcrtd_children 8 startup=1 idle=1

    coredump_dir /var/spool/squid3

 

    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

 

    always_direct allow all

           

--------------------------------------------------------------------------------------------------------------------------------------------------------------

 

 

I have spent a lot of time googling this error but could not arrive at a solution which would configure squid as an HTTP proxy. How do I get this working?

 

 

[1]: https://smoothnet.org/squid-proxy-with-ssl-bump/

 

Thanks & Regards

Jobin

 

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