ganeshragnarayanan

Topology
=========

#
# +-------+                  
# |       |     +---v---+    
# |  hs1  <----->  sw1  |
# |       |     +-------+    
# +-------+                  
#

ganeshragnarayanan

Using Management IP
===================
ip source-interface all address 172.17.0.2

common-auth-access

# here are the per-package modules (the "Primary" block)
auth	[success=1 default=ignore]	/usr/lib/security/libpam_tacplus.so	debug server=10.0.0.75 secret=tac_test 
login=pap timeout=5 src_namespace=/var/run/netns/nonet dstn_namespace=/var/run/netns/nonet source_ip=172.17.0.2 
#

ganeshragnarayanan

Logs with Tacacs ONLY user
===========================

Sep  1 11:45:11 ubuntu sshd[1731]: Tacacs_Dev: entering getpwnam for user sshd, TEMPLATE_USER = admin
Sep  1 11:45:11 ubuntu sshd[1731]: Tacacs_Dev: entering getpwnam for user user1, TEMPLATE_USER = admin
Sep  1 11:45:11 ubuntu sshd[1731]: Tacacs_Dev: (getpwnam) user user1 not found locally
Sep  1 11:45:11 ubuntu PAM-tacplus[1731]: 1 servers defined
Sep  1 11:45:11 ubuntu PAM-tacplus[1731]: server[0] { addr=192.168.9.131:49, key='tac_test' }
Sep  1 11:45:11 ubuntu PAM-tacplus[1731]: tac_service=''
Sep  1 11:45:11 ubuntu PAM-tacplus[1731]: tac_protocol=''

ganeshragnarayanan

cat common-auth-access
========================
#
# /etc/pam.d/common-auth - authentication settings common to all services
#
# This file is included from other service-specific PAM config files,
# and should contain a list of the authentication modules that define
# the central authentication scheme for use on the system
# (e.g., /etc/shadow, LDAP, Kerberos, etc.).  The default is to use the
# traditional Unix authentication mechanisms.

ganeshragnarayanan

Aug  8 13:24:11 ubuntu sshd[15664]: last_pw_name pointer is (nil), user = sshd
Aug  8 13:24:11 ubuntu sshd[15664]: last_pw_name pointer is (nil), user = user2
Aug  8 13:24:11 ubuntu sshd[15664]: pw_name pointer allocated using strdup is 0x55597342f190, user = user2
Aug  8 13:24:15 ubuntu sshd[15664]: last_pw_name pointer is 0x55597342f190, user = user2
Aug  8 13:24:15 ubuntu sshd[15664]: pw_name pointer allocated using strdup is 0x55597342cdb0, user = user2
Aug  8 13:24:28 ubuntu sshd[15664]: last_pw_name pointer is 0x55597342cdb0, user = user2
Aug  8 13:24:28 ubuntu sshd[15664]: pw_name pointer allocated using strdup is 0x555973432d40, user = user2


Aug  8 13:20:48 ubuntu sshd[15395]: last_pw_name pointer is (nil), user = sshd

ganeshragnarayanan

bash-4.3# cat sshd
#%PAM-1.0

auth       include      common-auth-access
account optional pam_permit.so
#account    required     pam_nologin.so
#account    include      common-account-access
password   include      common-password-access
session    optional     pam_keyinit.so force revoke
session    include      common-session-access