Scientific Linux 6
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FireWall2011/03/13

[1] If iptables in the server is unnecessarry (for example because some firewall is allready running in your LAN ), then stop it.
[root@dlp ~]#
/etc/rc.d/init.d/iptables stop

iptables: Flushing firewall rules:
[ OK ]

iptables: Setting chains to policy ACCEPT: filter
[ OK ]

iptables: Unloading iptables modules:
[ OK ]

[root@dlp ~]#
chkconfig iptables off

[root@dlp ~]#
chkconfig ip6tables off

SELinux
[2] Disable SELinux (Security-Enhanced Linux) if you don't need it.
[root@dlp ~]#
vi /etc/sysconfig/selinux


# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#
enforcing - SELinux security policy is enforced.

#
permissive - SELinux prints warnings instead of enforcing.

#
disabled - SELinux is fully disabled.

SELINUX=
disabled
# change

# SELINUXTYPE= type of policy in use. Possible values are:
#
targeted - Only targeted network daemons are protected.

#
strict - Full SELinux protection.

SELINUXTYPE=targeted
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