[squid-users] A bunch of SSL errors I am not sure why

Sat Jan 14 17:07:13 UTC 2017

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: eliezer at ngtech.co.il

-----Original Message-----
From: squid-users [mailto:squid-users-bounces at lists.squid-cache.org] On Behalf Of Amos Jeffries
Sent: Saturday, January 14, 2017 6:51 AM
To: squid-users at 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&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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