[CentOS] Squid as interception HTTPS proxy under CentOS 7

Thu Feb 4 18:24:58 UTC 2016
Eero Volotinen <eero.volotinen at iki.fi>

check out sslbump documentation:
http://wiki.squid-cache.org/Features/SslBump

--
Eero

2016-02-04 15:24 GMT+02:00 C. L. Martinez <carlopmart at gmail.com>:

> Hi all,
>
>  I am trying to configure squid as a interception HTTPS proxy under CentOS
> 7. At every https request, I am receiving a certificate error.
>
>  My current config for squid is:
>
> # My localnet
> acl localnet src 172.22.55.0/28
> acl localnet src 172.22.58.0/29
>
> 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
>
> #
> # Recommended minimum Access Permission configuration:
> #
> # Deny requests to certain unsafe ports
> http_access deny !Safe_ports
>
> # Deny CONNECT to other than secure SSL ports
> http_access deny CONNECT !SSL_ports
>
> # Only allow cachemgr access from localhost
> http_access allow localhost manager
> http_access deny manager
>
> # We strongly recommend the following be uncommented to protect innocent
> # web applications running on the proxy server who think the only
> # one who can access services on "localhost" is a local user
> #http_access deny to_localhost
>
> #
> # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
> #
>
> # Example rule allowing access from your local networks.
> # Adapt localnet in the ACL section to list your (internal) IP networks
> # from where browsing should be allowed
> http_access allow localnet
> http_access allow localhost
>
> # And finally deny all other access to this proxy
> http_access deny all
>
> # Squid normally listens to port 3128
> #http_port 3128
>
> # Uncomment and adjust the following to add a disk cache directory.
> #cache_dir ufs /var/spool/squid 100 16 256
>
> # Leave coredumps in the first cache dir
> coredump_dir /var/spool/squid
>
> #
> # Add any of your own refresh_pattern entries above these.
> #
> 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
>
> # My custom configuration
> http_port 8079
> http_port 8080 intercept
> https_port 8081 ssl-bump intercept generate-host-certificates=on
> dynamic_cert_mem_cache_size=4MB key=/etc/squid/custom.private
> cert=/etc/squid/custom.cert
>
> # Anonymous proxy
> forwarded_for off
> request_header_access Allow allow all
> request_header_access Authorization allow all
> request_header_access WWW-Authenticate allow all
> request_header_access Proxy-Authorization allow all
> request_header_access Proxy-Authenticate allow all
> request_header_access Cache-Control allow all
> request_header_access Content-Encoding allow all
> request_header_access Content-Length allow all
> request_header_access Content-Type allow all
> request_header_access Date allow all
> request_header_access Expires allow all
> request_header_access Host allow all
> request_header_access If-Modified-Since allow all
> request_header_access Last-Modified allow all
> request_header_access Location allow all
> request_header_access Pragma allow all
> request_header_access Accept allow all
> request_header_access Accept-Charset allow all
> request_header_access Accept-Encoding allow all
> request_header_access Accept-Language allow all
> request_header_access Content-Language allow all
> request_header_access Mime-Version allow all
> request_header_access Retry-After allow all
> request_header_access Title allow all
> request_header_access Connection allow all
> request_header_access Proxy-Connection allow all
> request_header_access User-Agent allow all
> request_header_access Cookie allow all
> request_header_access All deny all
>
> # SSL Bump Config
> always_direct allow all
> ssl_bump server-first all
> sslproxy_cert_error deny all
> sslproxy_flags DONT_VERIFY_PEER
>
>  I have tried disabling "sslproxy_cert_error" and "sslproxy_flags"
> directives, without luck.
>
>  Any ideas about what am I doing wrong?
>
>  Thanks.
> --
> Greetings,
> C. L. Martinez
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos
>