Hi All, My goal is to configure a reverse proxy for Outlook Anywhere clients using squid. http://wiki.squid-cache.org/ConfigExamples/Reverse/ExchangeRpc
This will replace existing TMG that my client is currently using. However, when I run squid I get an error "No valid signing SSL certificate configured for HTTPS_port". Before, I was able to get OWA and HTTPS traffic using NGINX as reverse proxy but was getting connection errors when trying to use OutlookAnywhere. So now I have been testing Squid but cannot get past the certificate installation which was painless under Nginx. Configuration is based on an article below: https://sysadminfixes.wordpress.com/2013/01/25/exchanging-squids/ I have been trying for several days now without much success to configure SSL certificate on my squid server. Getting the " ...no valid signing certificate" every time. I found few posts saying that it was not possible to use SSL certificates signed by public CA and self-signed certs must be used. Can anyone confirm if this is a case? Logs and config files below. My domain name has been replaced with *contoso.com <http://contoso.com>* for confidentiality sake. squid server- srv-*squid.contoso.com <http://squid.contoso.com>* / 3.3.3.201 uname -a Linux srv-squid 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux exchange server - exch.contoso.com / 10.2.2.30 SSL certificate: obtained from StartSSL for mail.contoso.com SQUID.CONF #### START visible_hostname mail.contoso.com redirect_rewrites_host_header off cache_mem 32 MB maximum_object_size_in_memory 128 KB #logformat combined %>a %[ui %[un [%tl] "%rm %ru HTTP/%rv" %>Hs %h" "%{User-Agent}>h" %Ss:%Sh ###this causes an error access_log /var/log/squid3/access.log cache_log /var/log/squid3/cache.log cache_store_log none cache_mgr nomail_address_given forwarded_for transparent ### ignore_expect_100 ## not available in version 3.5 ssl_unclean_shutdown on ### The most important line ### "cert" should contain Exchange certificate and key ### "sslproxy_cafile" contains CA of root servers - StartSSL ?! https_port mail.contoso.com:443 accel cert=/home/kk/ssl/cert-mail/mail.contoso.com.pem defaultsite= mail.contoso.com key=/home/kk/ssl/cert-mail/mail.contoso.com.key cache_peer exch.kk1.tech parent 443 0 proxy-only no-digest no-query originserver front-end-https=on login=PASS sslflags=DONT_VERIFY_PEER connection-auth=on name=Exchange acl exch_url url_regex -i mail.contoso.com/owa acl exch_url url_regex -i mail.contoso.com/microsoft-server-activesync acl exch_url url_regex -i mail.contoso.com/rpc cache_peer_access Exchange allow exch_url cache_peer_access Exchange deny all never_direct allow exch_url http_access allow exch_url http_access deny all miss_access allow exch_url miss_access deny all deny_info https://mail.contoso.com/owa all ###END ERROR cache.log 2016/11/05 08:52:13| storeDirWriteCleanLogs: Starting... 2016/11/05 08:52:13| Finished. Wrote 0 entries. 2016/11/05 08:52:13| Took 0.00 seconds ( 0.00 entries/sec). FATAL: No valid signing SSL certificate configured for HTTPS_port 3.3.3.201:443 Squid Cache (Version 3.5.22): Terminated abnormally. CPU Usage: 0.004 seconds = 0.000 user + 0.004 sys Maximum Resident Size: 46624 KB Page faults with physical i/o: 0 SQUID - compiled from sources squid -v Squid Cache: Version 3.5.22 Service Name: squid configure options: '--prefix=/usr' '--localstatedir=/var' '--libexecdir=/lib/squid3' '--srcdir=.' '--datadir=/share/squid3' '--sysconfdir=/etc/squid3' '--with-logdir=/var/log' '--with-pidfile=/var/run/squid3.pid' '--enable-inline' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd' '--enable-removal-policies=lru,heap' '--enable-delay-pools' '--enable-cache-digests' '--enable-underscores' '--enable-icap-client' '--enable-follow-x-forwarded-for' '--enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SASL,SMB,YP,DB,POP3,getpwnam,squid_radius_auth,multi-domain-NTLM' '--enable-ntlm-auth-helpers=smb_lm,' '--enable-digest-auth-helpers=ldap,password' '--enable-negotiate-auth-helpers=squid_kerb_auth' '--enable-external-acl-helpers=' '--enable-arp-acl' '--enable-esi' '--enable-ssl' '--enable-zph-qos' '--enable-wccpv2' '--disable-translation' '--with-logdir=/var/log/squid3' '--with-filedescriptors=65536' '--with-large-files' '--with-default-user=proxy' '--with-ssl' '--disable-ipv6' '--with-openssl' --enable-ltdl-convenience Appreciate any feedback Cheers Konrad
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