[squid-users] Configuring squid to work as an HTTPS proxy
Jobin George
gjobin at vmware.com
Mon Jun 20 14:02:01 UTC 2016
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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