The server is ubuntu 16.04

Clients are mostly Windows 7 Pro, Windows 8.1 Pro, Windows 10 Pro and a few Mac 
OS El Capitan 10.11





[cid:2FD1C3AB-E45C-49F0-84AB-0F8AC658BD11@routerb408e2.com]Piensa en el medio 
ambiente antes de imprimir este email.

On Jan 18, 2017, at 9:39 AM, Eliezer Croitoru 
<elie...@ngtech.co.il<mailto:elie...@ngtech.co.il>> wrote:

You will need to verify if there is an update to the certificates of the OS.
I know that couple authorities certificates was removed in the last month or 
two and it might be because of this.
What OS are you using?

----
Eliezer Croitoru<http://ngtech.co.il/lmgtfy/>
Linux System Administrator
Mobile: +972-5-28704261
Email: elie...@ngtech.co.il<mailto:elie...@ngtech.co.il>
<image004.png>

From: Sameh Onaissi [mailto:sameh.onai...@solcv.com]
Sent: Wednesday, January 18, 2017 4:32 PM
To: Eliezer Croitoru <elie...@ngtech.co.il<mailto:elie...@ngtech.co.il>>
Subject: Fwd: [squid-users] A bunch of SSL errors I am not sure why

Hello Eliezer, all

Sorry for the late reply.

When I configure the browser to access a non intercept port, the errors do not 
show up and the site is accessed without a problem.

The client machine has the .crt file installed, but still shows the error.

Other pages with errors:
http://pasteboard.co/nA20FD7om.png
http://pasteboard.co/nA2yWRyTE.png

Here is the second page in a browser without an intercepted port:
http://pasteboard.co/nA39CEFGU.png



Thanks in advance.
Some of these sites are used to pay company bills, so it’s important to get 
this issue resolves ASAP.
Worth mentioning that this was not a problem about 10 days ago.

Thanks again!
<image002.png>

Sameh Onaissi
Ingeniero de Soporte
Sol Cable Visión
Cel: 316-3023424
Email: sameh.onai...@solcv.com<mailto:sameh.onai...@solcv.com>



<image003.jpg>Piensa en el medio ambiente antes de imprimir este email.

On Jan 15, 2017, at 3:59 AM, Eliezer Croitoru 
<elie...@ngtech.co.il<mailto:elie...@ngtech.co.il>> wrote:

Non intercepted is not bypassed…
Squid has coupe options for the “http_port” option.
One that you are using is intercept and the other is without intercept.
What happens when you try to connect to this website when you are defining 
another port without “Intercept”  and define the proxy in the browser settings?
Let me know if something is missing in the picture.

Eliezer

----
http://ngtech.co.il/lmgtfy/
Linux System Administrator
Mobile: +972-5-28704261
Email: elie...@ngtech.co.il<mailto:elie...@ngtech.co.il>


From: Sameh Onaissi [mailto:sameh.onai...@solcv.com]
Sent: Sunday, January 15, 2017 3:25 AM
To: Eliezer Croitoru <elie...@ngtech.co.il<mailto:elie...@ngtech.co.il>>
Cc: Amos Jeffries <squ...@treenet.co.nz<mailto:squ...@treenet.co.nz>>; 
squid-users@lists.squid-cache.org<mailto:squid-users@lists.squid-cache.org>
Subject: Re: [squid-users] A bunch of SSL errors I am not sure why

Hello,

I assume bypassed are non intercepted? Once the site IP is on the bypass list, 
it opened without an issue. There are a few other 
.http://gov.co<http://gov.co/> sites who have the same problem too.

Attached is a screenshot of the error before I added the site to the bypass 
list.

squid -v
Squid Cache: Version 3.5.22
Service Name: squid
Ubuntu linux
configure options:  '--build=x86_64-linux-gnu' '--prefix=/usr' 
'--includedir=${prefix}/include' '--mandir=${prefix}/share/man' 
'--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' 
'--libexecdir=${prefix}/lib/squid3' '--srcdir=.' '--disable-maintainer-mode' 
'--disable-dependency-tracking' '--disable-silent-rules' 'BUILDCXXFLAGS=-g -O2 
-fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time 
-D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now 
-Wl,--as-needed' '--datadir=/usr/share/squid' '--sysconfdir=/etc/squid' 
'--libexecdir=/usr/lib/squid' '--mandir=/usr/share/man' '--enable-inline' 
'--disable-arch-native' '--enable-async-io=8' 
'--enable-storeio=ufs,aufs,diskd,rock' '--enable-removal-policies=lru,heap' 
'--enable-delay-pools' '--enable-cache-digests' '--enable-icap-client' 
'--enable-follow-x-forwarded-for' 
'--enable-auth-basic=DB,fake,getpwnam,LDAP,NCSA,NIS,PAM,POP3,RADIUS,SASL,SMB' 
'--enable-auth-digest=file,LDAP' '--enable-auth-negotiate=kerberos,wrapper' 
'--enable-auth-ntlm=fake,smb_lm' 
'--enable-external-acl-helpers=file_userip,kerberos_ldap_group,LDAP_group,session,SQL_session,time_quota,unix_group,wbinfo_group'
 '--enable-url-rewrite-helpers=fake' '--enable-eui' '--enable-esi' 
'--enable-icmp' '--enable-zph-qos' '--enable-ecap' '--disable-translation' 
'--with-swapdir=/var/spool/squid' '--with-logdir=/var/log/squid' 
'--with-pidfile=/var/run/squid.pid' '--with-filedescriptors=65536' 
'--with-large-files' '--with-default-user=proxy' '--with-openssl' 
'--enable-ssl' '--enable-ssl-crtd' '--enable-build-info=Ubuntu linux' 
'--enable-linux-netfilter' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fPIE 
-fstack-protector-strong -Wformat -Werror=format-security -Wall' 
'LDFLAGS=-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now 
-Wl,--as-needed' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 
-fPIE -fstack-protector-strong -Wformat -Werror=format-security'





@ Amos:

"* Check that the set of "global trusted CA" installed on your Squid machiene 
is up to date.”
I recreated the set recently.


* Try the latest Squid-4, which can auto-download intermediate certificates.

Is squid-4 stable for production?

Thank you,



Sameh Onaissi
Sol Cable Visión
Cel: 316-3023424
Email: mailto:sameh.onai...@solcv.com



Piensa en el medio ambiente antes de imprimir este email.

On Jan 14, 2017, at 12:07 PM, Eliezer Croitoru <mailto:elie...@ngtech.co.il> 
wrote:

I have not experienced this issue on my testing lab when accessing:
https://web.dlinkla.com/websys

$ squid -v
Squid Cache: Version 3.5.23
Service Name: squid
configure options:  '--build=x86_64-redhat-linux-gnu' 
'--host=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' 
'--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' 
'--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' 
'--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--sharedstatedir=/var/lib' 
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--verbose' 
'--exec_prefix=/usr' '--libexecdir=/usr/lib64/squid' '--localstatedir=/var' 
'--datadir=/usr/share/squid' '--sysconfdir=/etc/squid' 
'--with-logdir=$(localstatedir)/log/squid' 
'--with-pidfile=$(localstatedir)/run/squid.pid' '--disable-dependency-tracking' 
'--enable-follow-x-forwarded-for' '--enable-auth' 
'--enable-auth-basic=DB,LDAP,NCSA,NIS,PAM,POP3,RADIUS,SASL,SMB,getpwnam,fake' 
'--enable-auth-ntlm=smb_lm,fake' '--enable-auth-digest=file,LDAP,eDirectory' 
'--enable-auth-negotiate=kerberos,wrapper' 
'--enable-external-acl-helpers=wbinfo_group,kerberos_ldap_group,LDAP_group,delayer,file_userip,SQL_session,unix_group,session,time_quota'
 '--enable-cache-digests' '--enable-cachemgr-hostname=localhost' 
'--enable-delay-pools' '--enable-epoll' '--enable-icap-client' 
'--enable-ident-lookups' '--enable-linux-netfilter' 
'--enable-removal-policies=heap,lru' '--enable-snmp' 
'--enable-storeio=aufs,diskd,ufs,rock' '--enable-wccpv2' '--enable-esi' 
'--enable-ssl-crtd' '--enable-icmp' '--with-aio' '--with-default-user=squid' 
'--with-filedescriptors=16384' '--with-dl' '--with-openssl' '--with-pthreads' 
'--with-included-ltdl' '--disable-arch-native' '--enable-ecap' 
'--without-nettle' 'build_alias=x86_64-redhat-linux-gnu' 
'host_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-O2 -g -pipe -Wall 
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong 
--param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic' 
'LDFLAGS=-Wl,-z,relro ' 'CXXFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 
-fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 
-grecord-gcc-switches   -m64 -mtune=generic -fPIC' 
'PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig' 
--enable-ltdl-convenience

When the proxy is defined in the browser.
Can you verify if it affects only intercepted connections or also 
non-intercepted ones?

Thanks,
Eliezer

----
Eliezer Croitoru
Linux System Administrator
Mobile: +972-5-28704261
Email: mailto:elie...@ngtech.co.il


-----Original Message-----
From: squid-users [mailto:squid-users-boun...@lists.squid-cache.org] On Behalf 
Of Amos Jeffries
Sent: Saturday, January 14, 2017 6:51 AM
To: mailto:squid-users@lists.squid-cache.org
Subject: Re: [squid-users] A bunch of SSL errors I am not sure why

On 14/01/2017 4:27 a.m., Sameh Onaissi wrote:

Hello Eliezer, all,


I removed the cipher and the problem is still there:


2017/01/13 10:20:50 kid1| Error negotiating SSL connection on FD 138:
error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca
(1/0)

The CA used to sign the remote endpoints certificate is not trusted. Or an 
intermediary certificate is missing.

* Check that the set of "global trusted CA" installed on your Squid machiene is 
up to date.

* Try the latest Squid-4, which can auto-download intermediate certificates.



2017/01/13 10:21:05 kid1| Error negotiating SSL connection on FD 191:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)
2017/01/13 10:21:17 kid1| Error negotiating SSL connection on FD 194:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)
2017/01/13 10:21:17 kid1| Error negotiating SSL connection on FD 198:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)
2017/01/13 10:21:18 kid1| Error negotiating SSL connection on FD 194:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)
2017/01/13 10:21:18 kid1| Error negotiating SSL connection on FD 194:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)
2017/01/13 10:21:19 kid1| Error negotiating SSL connection on FD 194:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)

The obsolete SSL protocol is being used.



2017/01/13 10:21:24 kid1| Error negotiating SSL connection on FD 163:
Closed by client

The client disconnected. You can do nothing about that.


2017/01/13 10:21:39 kid1| Error negotiating SSL connection on FD 250:
error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca
(1/0)
2017/01/13 10:21:42 kid1| Error negotiating SSL on FD 298:
error:14090086:SSL routines:ssl3_get_server_certificate:certificate
verify failed (1/-1/0)

"certificate verify failed" says what it means.


2017-01-13 10:21:53 [29866] Request(everyone/deny/-)
https://accounts.youtube.com/accounts/CheckConnection?pmpo=https://acc
ounts.google.com<http://ounts.google.com/>&v=-1574475776&timestamp=1484320896449
10.0.0.127/10.0.0.127 - GET REDIRECT
2017/01/13 10:21:56 kid1| Error negotiating SSL connection on FD 109:
error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca
(1/0)
2017/01/13 10:21:56 kid1| Error negotiating SSL connection on FD 309:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate
unknown (1/0)
2017/01/13 10:22:25 kid1| Error negotiating SSL connection on FD 155:
Closed by client

Amos

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