Hello Rafael, There is an easier option *without* joining the Squid machine to the domain, See tutorial at https://docs.diladele.com/administrator_guide_stable/active_directory/index.html (it also applies to vanilla Squid without our UI - just you would need to do more manual steps). Raf -----Original Message----- From: squid-users <squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Rafael Silva Daniel Sent: Saturday, 15 February 2020 21:08 To: squid-users@xxxxxxxxxxxxxxxxxxxxx Subject: please, can someone help me with the negotiate kerberos? Helo! i think i did almost everything right, firstly i made it in a test enviroment with debian stretch running squid 3.5 and a windows server 2008 based domain controller, and it worked! but when i tried to deploy it in the production enviroment running debian stretch, squid 3.5 and windows server 2012 as the domain controller the authentication never works, the file /var/log/squid/cache.log shows this: 2020/02/14 15:40:21 kid1| ERROR: Negotiate Authentication validating user. Result: {result=BH, notes={message: gss_acquire_cred() failed: Unspecified GSS failure. Minor code may provide more information. No principal in keytab matches desired name; }} negotiate_kerberos_auth.cc(610): pid=13887 :2020/02/14 15:40:22| negotiate_kerberos_auth: DEBUG: Got 'YR (LETTERS AND NUMBERS)' from squid (length: 2439). negotiate_kerberos_auth.cc(663): pid=13887 :2020/02/14 15:40:22| negotiate_kerberos_auth: DEBUG: Decode '(LETTERS AND NUMBERS)' (decoded length: 1826). Obs1:I replaced a big string with letters and numbers by "(LETTERS AND NUMBERS)" Obs2: i posted more of the file in this link https://pastebin.com/Z2fe98dB well, the results of running: kinit -kt /etc/squid/HTTP.keytab HTTP/squid2.domain.local@DOMAIN.LOCAL: root@SERVER:~# klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: HTTP/squid2.domain.local@DOMAIN.LOCAL Valid starting Expires Service principal 02/15/2020 10:55:32 02/15/2020 20:55:32 krbtgt/DOMAIN.LOCAL@DOMAIN.LOCAL renew until 02/16/2020 09:55:32 The results of running:klist -kte /etc/squid/HTTP.keytab Keytab name: FILE:/etc/squid/HTTP.keytab KVNO Timestamp Principal ---- ------------------- ------------------------------------------------------ 1 02/12/2020 17:33:15 squid2$@DOMAIN.LOCAL (arcfour-hmac) 1 02/12/2020 17:33:16 squid2$@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 squid2$@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 SQUID2$@DOMAIN.LOCAL (arcfour-hmac) 1 02/12/2020 17:33:16 SQUID2$@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 SQUID2$@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 HTTP/squid2.domain.local@DOMAIN.LOCAL (arcfour-hmac) 1 02/12/2020 17:33:16 HTTP/squid2.domain.local@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 HTTP/squid2.domain.local@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 host/squid2@DOMAIN.LOCAL (arcfour-hmac) 1 02/12/2020 17:33:16 host/squid2@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 1 02/12/2020 17:33:16 host/squid2@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 squid2$@DOMAIN.LOCAL (arcfour-hmac) 3 02/12/2020 17:36:59 squid2$@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 squid2$@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 SQUID2$@DOMAIN.LOCAL (arcfour-hmac) 3 02/12/2020 17:36:59 SQUID2$@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 SQUID2$@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 HTTP/squid2.domain.local@DOMAIN.LOCAL (arcfour-hmac) 3 02/12/2020 17:36:59 HTTP/squid2.domain.local@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 HTTP/squid2.domain.local@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 host/squid2@DOMAIN.LOCAL (arcfour-hmac) 3 02/12/2020 17:36:59 host/squid2@DOMAIN.LOCAL (aes128-cts-hmac-sha1-96) 3 02/12/2020 17:36:59 host/squid2@DOMAIN.LOCAL (aes256-cts-hmac-sha1-96) And the results of running: root@SERVER:~# /usr/lib/squid/negotiate_kerberos_auth_test server.domain.local Token: (Alonglinewithnumbersandletters) the configs of the /etc/krb5.conf: [libdefaults] default_realm = DOMAIN.LOCAL dns_lookup_kdc = no dns_lookup_realm = no ticket_lifetime = 24h default_keytab_name = /etc/squid/HTTP.keytab default_tgs_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-crc des-cbc-md5 default_tkt_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-crc des-cbc-md5 permitted_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-crc des-cbc-md5 [realms] DOMAIN.LOCAL = { kdc = dc01.domain.local admin_server = dc01.domain.local default_domain = domain.local } [domain_realm] .domain.local = DOMAIN.LOCAL domain.local = DOMAIN.LOCAL and the /etc/squid/squid.conf: http_port 3128 dns_nameservers 200.198.5.4 200.198.5.5 visible_hostname PROXY cache_dir ufs /var/spool/squid 100 16 256 coredump_dir /var/spool/squid url_rewrite_program /usr/bin/squidGuard #auth parameter NEGOTIATE auth_param negotiate program /usr/lib/squid/negotiate_kerberos_auth -d -s HTTP/squid.domain.local -k /etc/squid/HTTP.keytab auth_param negotiate children 30 auth_param negotiate keep_alive on acl Safe_ports port 80 # http acl Safe_ports port 443 # https acl Safe_ports port 90 # metodo 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 CONNECT method CONNECT acl auth proxy_auth REQUIRED http_access deny !Safe_ports http_access deny CONNECT !Safe_ports http_access allow localhost manager http_access deny manager http_access allow localhost http_access deny !auth http_access allow auth In the domain controller i created in the two zones the proper dns records, the host with squid can have his ip resolved to its right hostname, and its hostname resolved to its right ip, in the clients i setted the proxy as server.domain.local, and in the squid access.log the requests came but are all denied and a prompt for user and password are showed to the user Obs: the only data edited while posting was that i replaced our domain by domain.local, the name of the host by SERVER, and long strings of data in the cache log and negotiate kerberos test out, all the rest is what is really running in the files. please someone help me, i tried to read everything i could find but i am not finding how to understand what i am doing wrong, thanks in advance, D: -- Sent from: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-Users-f1019091.html _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
