Hello list,

I´m setting up a Squid proxy specifically to scan the incoming traffic from a 
cloud platform.
ClamAV should scan the incoming traffic.

So far so good.

The cloud uses WebDAV over HTTPS, so I have to SSL-Bump the incoming traffic 
via Peek and Splice Feature.
That works indeed with the CA signed internal Certificate.

But as soon as I add a cache_peer as a "parent proxy" it does not work. (This 
request could not be forwarded to the origin server or to any parent caches.)
I just get "FwdState.cc(813) connectStart: fwdConnectStart: Ssl bumped 
connections through parent proxy are not allowed" in the cache.log

And yes I know ssl-bump through a parent proxy is an security issue and might 
be unsecure, but the connection to the parent is internal, save and secure.
I don't know how, but could there be a way to "comment out" the section in 
fwdConnectStart source file?

Squid Cache: Version 3.5.27
Service Name: squid
configure options:  '--with-openssl' '--enable-ssl-crtd'


Here´s my "minimal" SSL-Bump config:

### Start config

debug_options ALL,6
shutdown_lifetime 1 seconds

http_port 8080 ssl-bump cert=/usr/local/squid/etc/ssl_cert/Squidtest.pem 
generate-host-certificates=on dynamic_cert_mem_cache_size=4MB

sslcrtd_program /usr/local/squid/libexec/ssl_crtd -s /var/lib/ssl_db -M 4MB
sslcrtd_children 25 startup=5 idle=10

cache_peer 10.106.3.66 parent 8080 0 no-query no-digest name=parent

never_direct allow all

sslproxy_cert_error allow all
sslproxy_flags DONT_VERIFY_PEER

ssl_bump bump all

http_access allow all


### End config

Thanks for any help!
Niklas


Azubi Niklas Hess
Team Applikation-Management

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