RE: [squid-users] New to squid

Thanks for the reply Amos.

I could not start squid. From the messages file of Solaris, I saw the message:

May 9 11:04:20 socksnj squid[6304]: [ID 567784 local4.alert] Exiting due to repeated, frequent failures
May 9 11:15:48 socksnj squid[6346]: [ID 702911 user.alert] Failed to acquire SSL private key '/opt/squid-3.1.19/etc/webmail_test.key': error:0906406D:PEM routines:PEM_def_callback:problems getting password
May 9 11:15:51 socksnj squid[6349]: [ID 702911 user.alert] Failed to acquire SSL private key '/opt/squid-3.1.19/etc/webmail_test.key': error:0906406D:PEM routines:PEM_def_callback:problems getting password
May 9 11:15:54 socksnj squid[6353]: [ID 702911 user.alert] Failed to acquire SSL private key '/opt/squid-3.1.19/etc/webmail_test.key': error:0906406D:PEM routines:PEM_def_callback:problems getting password
May 9 11:15:57 socksnj squid[6355]: [ID 702911 user.alert] Failed to acquire SSL private key '/opt/squid-3.1.19/etc/webmail_test.key': error:0906406D:PEM routines:PEM_def_callback:problems getting password
May 9 11:16:00 socksnj squid[6357]: [ID 702911 user.alert] Failed to acquire SSL private key '/opt/squid-3.1.19/etc/webmail_test.key': error:0906406D:PEM routines:PEM_def_callback:problems getting password
May 9 11:16:00 socksnj squid[6344]: [ID 567784 local4.alert] Exiting due to repeated, frequent failures

I typed in the correct passphrase. The certificate was generated for Apache server with openssl. The self-signed cert was generated from openssl also.

Here is revised squid.conf. Thanks.


#
# Recommended minimum configuration:
#
##acl manager proto cache_object
##acl localhost src 127.0.0.1/32 ::1
##acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
##acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
##acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
##acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
##acl localnet src fc00::/7 # RFC 4193 local private network range
##acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines

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:
#
# Only allow cachemgr access from localhost
##http_access allow manager localhost
##http_access deny manager

# 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

# 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 allow all

# Squid normally listens to port 3128

https_port 156.146.2.195:443 accel cert=/opt/apache2.2.21/conf/ssl.crt/webmail_fnpc_com.crt key=/opt/apache2.2.21/conf/ssl.crt/webmail_fnpc_com.key cafile=/opt/apache2.2.21/conf/ssl.crt/DigiCertCA.crt defaultsite=webmail.fnpc.com
cache_peer 156.146.16.198 parent 443 0 no-query originserver login=PASS ssl sslcert=/opt/squid-3.1.19/etc/webmail_test.crt sslkey=/opt/squid-3.1.19/etc/webmail_test.key name=exchangeServer

acl EXCH dstdomain .fnpc.com

cache_peer_access exchangeServer allow EXCH
cache_peer_access exchangeServer deny all
never_direct all EXCH

http_access allow EXCH
http_access deny all
miss_access allow EXCH
miss_access deny all


# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /opt/squid-3.1.19/var/cache 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /opt/squid-3.1.19/var/cache

# 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


Ryan Jiang

-----Original Message-----
From: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
Sent: Tuesday, May 08, 2012 9:05 PM
To: squid-users_at_squid-cache.org
Subject: Re: [squid-users] New to squid

On 09.05.2012 10:42, Ruiyuan Jiang wrote:
> Hi, all
>
> I am new to Squid. I am trying to setup squid as a reverse proxy to
> for MS Exchange outlook client access. I compiled squid myself
> (v3.1.19, Solaris 10, SPARC). I followed the configuration example on
> the squid web page "ConfigExamples/Reverse/ExchangeRpc".
>
> # cat squid.conf
<snip>
> # Squid normally listens to port 3128
>
> https_port 156.146.1.133:443 accel
> cert=/opt/apache2.2.21/conf/ssl.crt/webmail_fnpc_com.crt
> defaultsite=webmail.fnpc.com
> cache_peer 10.105.10.20 parent 443 0 no-query originserver login=PASS
> ssl sslcert=/opt/apache2.2.21/conf/ssl.crt/webmail_fnpc_com.crt
> name=exchangeServer
>
> acl EXCH dstdomain .fnpc.com
>
> cache_peer_access exchangeServer allow EXCH
> cache_peer_access exchangeServer deny all
> never_direct all EXCH
>
> http_access allow EXCH
> http_acces deny all

    ^^ typo "ss"

> miss_access allow EXCH
> miss_access deny all
>

<snip>
>
> The cerficate file webmail_fnpc_com.crt is a valid certificate that I
> got from a CA. Do I need to install two certificates on the server,
> one for client which I would guess the official certificate
> (webmail_fnpc_com.crt)? Can I present the same certificate to the
> internal exchange server? That is what I did to all my Apache reverse
> proxy servers for Exchange server.

The basics of it are that Squid is what interacts with the client. So
the public cert needs to be presented there on https_port.

What Exchange uses depends on what type of interactions happen there.
It is probably safest to have self-signed certs with the self-signing CA
trusted by Squid (on cache_peer) so it can verify Exchange, but this
only works if the clients are not interacting directly to Exchange via
other channels.

NP: Squid requires PEM format certificate files.


> When I ran 'squid -X', I got the
> below message stating 1. unrecognized: 'https_port', 2. FATAL:
> Bungled
> squid.conf line 64: cache_peer 156.146.16.198 parent 443 0 no-query
> originserver login=PASS ssl
> sslcert=/opt/apache2.2.21/conf/ssl.crt/webmail_fnpc_com.crt
> name=exchangeServer
>

When you built squid you omitted --enable-ssl. Ensure you have openssl
development library to build against and rebuild your squid. It should
accept the SSL related config after that.

<snip>
> 2012/05/08 17:22:11.373| parse_peer: token='ssl'
...
> FATAL: Bungled squid.conf line 64: cache_peer 156.146.16.198 parent
> 443 0 no-query originserver login=PASS ssl
> sslcert=/opt/apache2.2.21/conf/ssl.crt/webmail_fnpc_com.crt
> name=exchangeServer
> Squid Cache (Version 3.1.19): Terminated abnormally.


Amos

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Received on Wed May 09 2012 - 15:30:04 MDT