[squid-users] squid reverse proxy and client certs

Matus UHLAR - fantomas uhlar at fantomas.sk
Wed Dec 30 10:56:36 UTC 2015

On 30.12.15 15:11, Alex Samad wrote:
>I have squid 3.5.12 working as a reverse proxy
>cache_peer \
> parent 443 0 proxy-only no-query no-digest originserver \
> login=PASS \
> ssl \
> sslcafile=/etc/pki/tls/certs/ca-bundle.crt \
> sslflags=DONT_VERIFY_PEER \
> name=webServer
>This points to httpd which has a
>        <Location /test/>
>                DirectoryIndex index.shtml index.html
>                Options -Indexes -Includes +IncludesNOEXEC
>-SymLinksIfOwnerMatch -ExecCGI -FollowSymLinks
>                SSLOptions +StdEnvVars +ExportCertData
>                SSLVerifyClient optional_no_ca
>                SSLVerifyDepth 4
>        </Location>
>Unfortunately the request for a client cert never makes it to the client.
>How can I change this to allow client certs to work

client certs will only work when you pass the connection directly to web
server without unbundling SSL.
That means, it's useless to use reverse proxy for HTTPS server when it needs
client certificates.

The workaround you could be in verifying client certificates by squid,
pushing that info to server and webserver trusting that info...

Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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