[squid-users] remove all squid pages & errors pages footprints

Eliezer Croitoru eliezer at ngtech.co.il
Mon Nov 21 17:52:34 UTC 2016

The first step would be to firewall your proxy and allow\use it only for
your real users.
Other IP’s should not have access to telnet\netcat or contact your service


Eliezer Croitoru <http://ngtech.co.il/lmgtfy/> 
Linux System Administrator
Mobile: +972-5-28704261
Email: eliezer at ngtech.co.il

From: squid-users [mailto:squid-users-bounces at lists.squid-cache.org] On
Behalf Of --Ahmad--
Sent: Sunday, November 20, 2016 13:22
To: Amos Jeffries <squid3 at treenet.co.nz>
Cc: squid-users at lists.squid-cache.org
Subject: Re: [squid-users] remove all squid pages & errors pages footprints

HI amos 

thanks for that info .

i already did as below :
1- i didn’t touch any squid files
and compiled with the option u told me and added the tcp reset acl.

that was fine when i open websites with error i was seeing” tcp reset “ and
thats fine .

but there is other stuff I’m worry about .

if someone do telnet to squid … he can  still squid headers 

check below :
Ahmads-MacBook-Pro:~ ahmad$ telnet x.x.237.187 4000
Connected to li666-177.members.linode.com
<http://li666-177.members.linode.com> .
Escape character is '^]'.

get / HTTP /
HTTP/1.1 403 Forbidden
Server: squid/3.5.22
Mime-Version: 1.0
Date: Sun, 20 Nov 2016 11:18:21 GMT
Content-Type: text/html;charset=utf-8
Content-Length: 5
X-Squid-Error: TCP_RESET 0
Content-Language: en
X-Cache: MISS from Googlechrome
X-Cache-Lookup: NONE from Googlechrome:4000
Connection: close

resetConnection closed by foreign host.
Ahmads-MacBook-Pro:~ ahmad$ 

as you see there are squid footprints above …. how can i hide it ??

i want to remove ((Server: squid/3.5.22))

again i want to protect squid from being scanned and flagged as open proxy 


On Nov 19, 2016, at 1:19 PM, Amos Jeffries <squid3 at treenet.co.nz
<mailto:squid3 at treenet.co.nz> > wrote:

On 19/11/2016 11:40 p.m., --Ahmad-- wrote:

hi squid users .

im willing to have squid errors or any foot prints to be removed .

as an example if was error access denied or dns name problem …. i don’t
want any squid footprints to be shown .

i would prefer to have blank page better 

where should i look @  before compilation  ?

Please don't.

1) *Replace* all the files in errors/templates with empty files of same

2) Build Squid with --disable-auto-locale.

3) add the following to squid.conf

 acl errors http_status 400-599
 deny_info TCP_RESET errors
 http_reply_access deny errors

Good luck dealing with the results (you are going to need it).


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