Authenticatenegotiatehandlereply error validating user via negotiate validating empty data from xml files

COM dns_lookup_kdc = no dns_lookup_realm = no ticket_lifetime = 24h default_keytab_name = /etc/squid3/PROXY.keytab; for Windows 2003 default_tgs_enctypes = rc4-hmac des-cbc-crc des-cbc-md5 default_tkt_enctypes = rc4-hmac des-cbc-crc des-cbc-md5 permitted_enctypes = rc4-hmac des-cbc-crc des-cbc-md5; for Windows 2008 with AES; 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] MYDOMAIN. Normal, CN=Users, DC=mydomain, DC=com))" \ -h mydc.mydomain.com# full internet accessexternal_acl_type internet_full %LOGIN /usr/lib/squid3/squid_ldap_group -R -K \ -b "dc=mydomain,dc=com" \ -D [email protected]\ -w "mypasswd" \ -f "(&(objectclass=person)(s AMAccount Name=%v)(memberof=cn=Squid.

COMSquid Cache: Version 3.1.6configure options: '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=$/include' '--mandir=$/share/man' '--infodir=$/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=$/lib/squid3' '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-silent-rules' '--srcdir=.' '--datadir=/usr/share/squid3' '--sysconfdir=/etc/squid3' '--mandir=/usr/share/man' '--with-cppunit-basedir=/usr' '--enable-inline' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd' '--enable-removal-policies=lru,heap' '--enable-delay-pools' '--enable-cache-digests' '--enable-underscores' '--enable-icap-client' '--enable-follow-x-forwarded-for' '--enable-auth=basic,digest,ntlm,negotiate' '--enable-basic-auth-helpers=LDAP, MSNT, NCSA, PAM, SASL, SMB, YP, DB, POP3,getpwnam,squid_radius_auth,multi-domain-NTLM' '--enable-ntlm-auth-helpers=smb_lm,' '--enable-digest-auth-helpers=ldap,password' '--enable-negotiate-auth-helpers=squid_kerb_auth' '--enable-external-acl-helpers=ip_user,ldap_group,session,unix_group,wbinfo_group' '--enable-arp-acl' '--enable-esi' '--disable-translation' '--with-logdir=/var/log/squid3' '--with-pidfile=/var/run/squid3.pid' '--with-filedescriptors=65536' '--with-large-files' '--with-default-user=proxy' '--enable-linux-netfilter' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -g -Wall -O2' 'LDFLAGS=' 'CPPFLAGS=' 'CXXFLAGS=-g -O2 -g -Wall -O2' --with-squid=/tmp/buildd/squid3-3.1.6## /etc/default/squid3 Configuration settings for the Squid proxy server.## Max. You can increase this on a busy# cache to a maximum of (currently) 65536 filedescriptors. SQUID_MAXFD=1024KRB5_KTNAME=/etc/squid3/PROXY.keytabexport KRB5_KTNAME####### /etc/squid3/Configuration File ############## cache managercache_mgr [email protected]####### kerberos authenticationauth_param negotiate program /usr/lib/squid3/squid_kerb_auth -d -s HTTP/squidsrv.mydomain.comauth_param negotiate children 30auth_param negotiate keep_alive on###### provide access via ldap for clients not authenticated via kerberosauth_param basic program /usr/lib/squid3/squid_ldap_auth -R \ -b "dc=mydomain,dc=com" \ -D [email protected]\ -w "mypasswd" \ -f s AMAccount Name=%s \ -h mydc.mydomain.comauth_param basic children 10auth_param basic realm Internet Proxyauth_param basic credentialsttl 1 minute####### ldap authorizations# restricted internet access loggedexternal_acl_type internet_normal %LOGIN /usr/lib/squid3/squid_ldap_group -R -K \ -b "dc=mydomain,dc=com" \ -D [email protected]\ -w "mypasswd" \ -f "(&(objectclass=person)(s AMAccount Name=%v)(memberof=cn=Squid.

Hi All, I am trying to setup squid with kerberos based auth on a windows domain with both 2008_R domain controllers (purpose is to provide a proxy that logs the useranme of the user accessing the internet but does not prompt for a username and password), but encounter the same error everytime: I cannot get past this error and have rebuilt the Centos many times fresh.

"authenticate Negotiate Handle Reply: Error validating user via Negotiate.

kdestroy On the Samb4 server reset the Computer Account proxysrv-http using Microsofts RSAT (Remote Server Administration Tools) on a Windows workstation.

, then run msktutil as follows to ensure the keytab is updated as expected and that the keytab is being sourced by msktutil from /etc/krb5correctly.

dig -x 192.168.1.2dig -x 192.168.1.1 Install msktutil an Active Directory keytab managerapt-get install msktutil Configure the proxy's kerberos computer account and service principle by running msktutil msktutil -c -b "CN=Computers" -s HTTP/com -k /etc/squid3/PROXY.keytab --computer-name PROXYSRV-HTTP --upn HTTP/com --server com --verbose Note: chown proxy.proxy /etc/squid3/PROXY.keytab Destroy the administrator credentials used to create the account.

The internet explorer, prompts for a username and password (which i dont want but need the username in the squid logs), it never accepts the username and password as I have a acl to deny if auth fails. AU I tried the 2003 settings, instead of default_tgs_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc$ default_tkt_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc$ permitted_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-c$ I put: 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 And I tried mydc.au instead of 192.168.8.18 None of this made any difference.

I followed instructions from "https:// joining Centos to the domain using the link on the webpage above worked fine dig -x returns the DNS Name of the proxy and domain controller as expected. getent passwd Administrator command worked fine and returned data as expected wbinfo –g and wbinfo –u work as expected as well (returning users/groups from AD) There were not errors during carrying out the instructions from the webpage Here are the changes I put in the /etc/init.d/squid startup: start() { KRB5_KTNAME=/etc/squid/squid.keytab export KRB5_KTNAME probe parse=`$SQUID -k parse -f $SQUID_CONF 2&1` -------------- Here is the permissions on the keytab file: -rwxr-----.

Error returned 'BH gss_acquire_cred() failed: Unspecified GSS failure.

Minor code may provide more information." is in the squid logs when I try to open a browser.

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This is not completely necessary but is useful to ensure msktutil works as expected.

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