Hello !

I would like to ask people in this community regarding to TCP Wrapper.

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I would like to ask people in this community regarding to TCP Wrapper.

My OS environment is below.

[root@server1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.2 (Maipo)
[root@server1 ~]# uname -a
Linux server1.ywlocal.net 3.10.0-327.el7.x86_64 #1 SMP Thu Oct 29 17:29:29 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux

What I want to do is :

Restrict access from user2new@192.168.11.230 on sshd service. Access is made to server 192.168.11.110.

My TCP Wrapper definition (hosts.deny) on 192.168.11.110

#

hosts.deny This file contains access rules which are used to

deny connections to network services that either use

the tcp_wrappers library or that have been

started through a tcp_wrappers-enabled xinetd.

#

The rules in this file can also be set up in

/etc/hosts.allow with a 'deny' option instead.

#

See 'man 5 hosts_options' and 'man 5 hosts_access'

for information on rule syntax.

See 'man tcpd' for information on tcp_wrappers

#
sshd,vsftpd: user2new@192.168.11.230: RFC931: spawn /usr/bin/logger "Access has been made from %a by %u"

Result is :

Access was no restricted for user2new@192.168.11.230.

Is there any configuration change I need to make in order to activate the username lookup?

Thanks,

Yu Watanabe