Squid3 - New GUI with sync, normal and reverse proxy

Nachtfalke · Oct 23, 2012, 7:31 AM

1.) To use squid in LoadBalancing /MultiWAN you just have to do additional configuration. There are many forum posts about that and how to configure that.

RAM is more a kind of "cache" so that squid does not have to access the HDD too much. After reboot the RAM will be empty. The RAM will be filled again automatically with files which are most requested by users of the proxy.

My setting an intention is as following:
The minimum file size must be 128kb. I do not want to cache smaller files because getting them from cache will ber perhaps not much faster than downloading them (depending on your WAN connection).
The maximum object size in RAM is 512kb. Caching many small files on HDD will cause many read/write accesses on HDD which cost time so I will cache small files in my RAM which is very fast.
The maximum object size is 1GB because I want to cache windows updates and so on but I do not want to have a ServicePack in my RAM which wasts much space and will not be needed so often.

As memory replacement policy I use:


Heap GDSF: Greedy-Dual Size Frequency - The Heap GDSF policy optimizes object-hit rate by keeping smaller, popular objects in cache. It achieves a lower byte hit rate than LFUDA though, since it evicts larger (possibly popular) objects.

As disk cache replacement I use:


Heap LFUDA: Least Frequently Used with Dynamic Aging - The Heap LFUDA policy keeps popular objects in cache regardless of their size and thus optimizes byte hit rate at the expense of hit rate since one large, popular object will prevent many smaller, slightly less popular objects from being cached.

quetzalcoatl · Oct 23, 2012, 4:04 PM

Nachtfalke

Thanks for your reply

Those settings that you are using are very efficient and are very similar to what i use. But it think they can be improved a little:
RAM is still faster than any WAN even for very small files, so i see no reason to limit the minimum object size in RAM setting it above 0KB.

If you have a big hard drive you can have a maximum object size in Disk bigger than 1 GB.
I actually keep the maximum object size to 9999 Megabytes so if a user downloads a double layer dvd, it will still be there for anyone to re-download it at huge LAN speeds.
This is good when you are using a Terabyte or bigger hard drive dedicated to squid.

I did notice that RAM gets filled slowly after the system is restarted, but it would be great to have it filled quickly with a synchronous cache backup done in the hard drive.
But that may be too complicated. Some other caches actually do this.

Also, i saw in other forum posts here about the load balancing with squid but many are still complaining about having only one WAN used when squid service is active.
I found a post that had a way to make squid work with both WANS and it did work but it crashed squid several times a week.

That is why i´m using two machines, one with pfsense with pppoe wan connections(to make wan connection faster than router), load balancing and failover but without squid,
and a second machine with pfsense and just squid cache service.

Nachtfalke · Oct 30, 2012, 4:29 PM

Hi,

can someone help me with that:
http://www.squid-cache.org/Doc/config/accept_filter/


2012/10/30 17:27:44| Installing accept filter 'httpready' on FD 359
2012/10/30 17:27:44| SO_ACCEPTFILTER 'httpready': (2) No such file or directory

I enabled this on my squid.conf


accept_filter httpready

Is this possible with pfsense (kernel) and squid2 or squid3 ?

Thank you!

Nachtfalke · Nov 1, 2012, 11:30 AM

Another question to the squid users.

The description for http://www.squid-cache.org/Doc/config/minimum_object_size/ is:


Objects smaller than this size will NOT be saved on disk.  The
value is specified in kilobytes, and the default is 0 KB, which
means there is no minimum.

Will the objects smaller than 128KB be cache in mem or not if I set the value to 128 ? I want to prevent that to many very small files will be cached on disk because this causes so much I/O on disk. These small files should be placed in RAM which is much faster.

griffin · Nov 25, 2012, 7:13 PM

Is there a guide somewhere to get this Reverse Proxy working in pfsense.. ?
I can't get the right combination of NAT, firewall, ports and interfaces.

Maybe an example?
Has Anyone really got it working?

thanks!

-Griffin

Truster · Nov 26, 2012, 4:21 PM

Hi,

i found a bug/typo in /usr/local/pkg/squid_reverse.inc:136

RPC-over-HTTPS doen't work correct.

    136                         if($settngs['reverse_owa_rpchttp'])
    137                                         array_push($owa_dirs,'rpc/rpcproxy.dll','rpcwithcert/rpcproxy.dll');

correct is:

    136                         if($settings['reverse_owa_rpchttp'])
    137                                         array_push($owa_dirs,'rpc/rpcproxy.dll','rpcwithcert/rpcproxy.dll');

tooks lot of time to get Outlook RPC-over-HTTPS working :P

marcelloc · Nov 26, 2012, 5:10 PM

@Truster:

i found a bug in /usr/local/pkg/squid_reverse.inc:136

I've pushed the fix for this typo, thank's for the feedback! :)

moh10ly · Nov 29, 2012, 1:23 PM

Could you please post your configuration ? I would like to host my webserver through squid reverse proxy and it didn't work for me..

Truster · Dec 7, 2012, 11:23 AM

1st: You have to correct the typo as descripted in my post before…

I configured it like this:
reverse Proxy Interface: WAN
External FQDN webmail.domain.tld
Reset TCP connections if request is unauthorized: active
Enable HTTPS reverse proxy: Active
reverse HTTPS port: 443
reverse SSL certificate
Ignore internal Certificate validation: active (we use self signed certs)
OWA frontend IP address: IP Address four your Frontent OWA Server
Enable ActiveSync: yes
Enable Outlook Anywhere: yes
Enable Exchange WebServices: yes
Enable AutoDiscover:yes

and of course, you have to open that port in the firewall rules.

i'm using OWA/Exch2010...

hope, this helps.

Edit: if you correct the typo after enabling RPC-over-HTTPS you have to uncheck that box, save the configuration, recheck the box and save it again to apply the changes.

marcelloc · Dec 7, 2012, 6:29 PM

@Truster:

1st: You have to correct the typo as descripted in my post before…

Or just install latest package version (2.0.5_6) ;)

quetzalcoatl · Dec 8, 2012, 4:49 PM

Thank you marcellok!!!

At last, since today, squid works again with both http and https caching everything.

I have been waiting for this fix for months!!!

Thanks again. May Quetzalcoatl bless you!

I wonder who is porting squid to freeBSD.

Now squid 3.3 beta is outwith several nice improvements and fixes since 3.2 and 3.1
Hopefully some kind guy will port it soon to freeBSD to make it available for pfSense as well.

mauricioniñoavella · Jan 10, 2013, 8:44 PM

Hi marcelloc,

I wonder if it works squid3 with SquidGuard
or I can suggest that I can work with squid for Access Control List (ACL)

Thanks for your understanding.

Regards

Mauricio Niño

marcelloc · Jan 11, 2013, 1:43 AM

@mauricioniñoavella:

I wonder if it works squid3 with SquidGuard

Yes, just reinstall squid3 after squidguard install

@mauricioniñoavella:

or I can suggest that I can work with squid for Access Control List (ACL)

On current package version, if acl fields available does not fit your need, you can create manual acls on custom_options

phil.davis · Jan 21, 2013, 11:28 AM

Notification/doco: The latest squid and squid3 have replaced the previous process called proxy_monitor with sqpmon.

[2.1-BETA1][admin@test.mydomain]/root(6): ls -l /usr/local/pkg/sqpmon.sh
-rwxr-xr-x  1 root  wheel  2906 Jan 21 15:28 /usr/local/pkg/sqpmon.sh
[2.1-BETA1][admin@test.mydomain]/root(7): ls -l /usr/local/etc/rc.d/sq*
-rwxr-xr-x  1 root  wheel  335 Jan 21 15:28 /usr/local/etc/rc.d/sqp_monitor.sh
-rwxr-xr-x  1 root  wheel  449 Jan 21 15:46 /usr/local/etc/rc.d/squid.sh
[2.1-BETA1][admin@test.mydomain]/root(8): ps ax | grep sqpmon
83263   0- I      0:00.26 /bin/sh /usr/local/pkg/sqpmon.sh

If you install the latest squid (2.7.9 pkg v.4.3.2) or squid3 (3.1.20 pkg 2.0.5_8), you will find an sqpmon process appears (squid process monitor) running /usr/local/pkg/sqpmon.sh. It does what proxy_monitor used to do - checks every minute or so to see if squid is still running. The sqp_monitor.sh script is called at startup and shutdown to start and stop it.
This helps out a guy in Ethiopia who was having trouble fetching files with "proxy" in the filename. It also fixes some potential problems with proxy_monitor - it was possible to have a scenario where proxy_monitor.sh would get called at shutdown and actually hang the shutdown, preventing a reboot from ever completing. Now sqpmon works the way that other package component startup/shutdown scripts are designed.
This all works on 2.0.n or 2.1-BETAn systems.

fragged · Feb 1, 2013, 4:10 PM

I want to not cache Steam downloads. Shouldn't this work in "Custom settings" on the General-tab:


acl steamtest url_regex -i ^http://.*/depot/.*/chunk/.*
cache deny steamtest

Squid is still caching Steam downloads (url http://81.171.70.221/depot/107202/chunk/52f888f7848537d725be13719ef9870f0b1da910). My regexp should match the url each time. The IP changes, but /depot/ and /chunk/ are always there.

What am I doing wrong? :F

Regards,
Joona

Tikimotel · Feb 3, 2013, 1:01 PM

Will we see an update of the squid3 package to the 3.2 branch?

Stable v3.2.7 released on the 1st of Feb.
http://www.squid-cache.org/Versions/v3/3.2/RELEASENOTES.html

Some bugs regarding ipv6 have been fixed in this latest version.
http://www.squid-cache.org/Versions/v3/3.2/changesets/SQUID_3_2_7.html

Still no freshports.org update though, that is still at v3.2.6

p.s. the package name is 3.1.20 and 3.1.22 is rolled out in PBI. (I'm running 2.1 beta)

marcelloc · Feb 3, 2013, 10:55 PM

I'm testing 3.2.6 and SSL filtering this weekend. :)

Tikimotel · Feb 6, 2013, 6:27 PM

I've checked just now, freshports.org has finished porting v3.2.7 ;)

marcelloc · Feb 6, 2013, 7:54 PM

@Tikimotel:

I've checked just now, freshports.org has finished porting v3.2.7 ;)

Compiling and testing

big changelog

Fri 2013-02-01 03:54:21 -0700 Amos Jeffries +23 -6 3.2.7
Thu 2013-01-31 21:58:59 -0700 Amos Jeffries +4 -0 Fix ipv6 enabled pinger.
Thu 2013-01-31 21:57:13 -0700 Amos Jeffries +11 -8 Bug #3687: unhandled exception: c when using interception and peers
Thu 2013-01-31 21:56:07 -0700 Alex Rousskov +2 -0 Bug #3111: Mid-term fix for the forward.cc "err" assertion.
Thu 2013-01-31 21:54:23 -0700 Sebastien Wenske +5 -0 Support OpenSSL NO_Compression option
Tue 2013-01-29 00:00:55 -0700 Amos Jeffries +2 -2 Fix WCCPv2 'comparison between signed and unsigned integer expressions'
Mon 2013-01-28 04:49:40 -0700 Amos Jeffries +1 -1 Bug #3567: Memory leak handling malformed requests
Mon 2013-01-28 04:48:06 -0700 Amos Jeffries +9 -0 Bug #3735: raw-IPv6 domain URLs crash if IPv6-disabled
Mon 2013-01-28 04:45:07 -0700 Amos Jeffries +2 -3 Bug #3732: Fix ConnOpener IPv6 awareness
Mon 2013-01-28 04:41:04 -0700 Amos Jeffries +6 -2 Initialize mem_node fully
Mon 2013-01-28 04:40:12 -0700 Tianyin Xu +6 -0 Bug #3736: Floating point exception due to divide by zero
Mon 2013-01-28 04:29:16 -0700 Alex Rousskov +5 -0 Fix "address.GetPort() != 0" assertion for helpers on FreeBSD (at least).
Mon 2013-01-28 04:25:34 -0700 Amos Jeffries +25 -18 WCCP: Fix memory leak in mask assignment, improve debuggsing.
Mon 2013-01-28 04:23:27 -0700 Amos Jeffries +32 -32 Polish quick_abort feature decision code
Mon 2013-01-28 04:22:25 -0700 Amos Jeffries +1 -0 Fix memory leak in IP address unit test
Mon 2013-01-28 02:59:18 -0700 Amos Jeffries +12 -2 Fix memory leaks in ICMP
Mon 2013-01-28 02:58:16 -0700 Tianyin Xu +1 -1 Bug #3729: 32-bit overflow in parsing 64-bit configuration values
Sun 2013-01-27 22:43:11 -0700 Tomas Hozza +36 -10 Fix various Disk I/O issues in all modules
Sun 2013-01-27 22:40:06 -0700 Francesco Chemolli +2 -2 Fix error in config parser which would mis-assign the sslcrlfile directive.
Sun 2013-01-27 22:39:19 -0700 Francesco Chemolli +54 -26 Plugged memory leaks in digest authentication module
Sun 2013-01-27 21:33:00 -0700 Tianyin Xu +4 -0 Bug #3728: Improve debug for cache_dir
Sun 2013-01-27 21:30:26 -0700 Tomas Hozza +3 -0 Make sure copied strings are properly terminated in snmplib and wccp2
Sun 2013-01-27 21:28:17 -0700 Tomas Hozza +32 -10 Fix various issues in snmplib
Sun 2013-01-27 21:27:32 -0700 Tomas Hozza +31 -11 Fix various issues in smblib
Fri 2013-01-25 02:59:54 -0700 Timo Teras +7 -2 Bug #3678: external acl grace period causes acl lookup failures

geijt · Feb 10, 2013, 10:02 AM

I've modified the squid-reverse package to support redirects.
This was something I missed after migrating from Microsoft TMG 2010 to pfsense.

You can redirect requests from mail.mydomain.com (protocol HTTP selected) to https://mail.mydomain.com
Or in case of Microsoft Exchange redirecting from mail.mydomain.com and webmail.mydomain.com (both protocols selected) to https://webmail.mydomain.com/owa is also supported.
You also can use it to support the Microsoft Exchange Autodiscover HTTP to HTTPS redirect function.

I think you can expect the updated package soon.