How can i use iptables on centos 7
2017-11-19 13:56
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I installed CentOS 7 with minimal configuration (os + dev tools). I am trying to open 80 port for httpdservice, but something wrong with my iptables service … what’s wrong with it? What am I doing wrong?
bash: ifconfig/sbin/service: No such file or directory
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
Redirecting to /bin/systemctl status iptables.service
iptables.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
Redirecting to /bin/systemctl start iptables.service
Failed to issue method call: Unit iptables.service failed to load: No such file or directory.
With RHEL 7 / CentOS 7, firewalld was introduced to manage iptables. IMHO, firewalld is more suited for workstations than for server environments.
It is possible to go back to a more classic iptables setup. First, stop and mask the firewalld service:
systemctl stop firewalld
systemctl mask firewalld
Then, install the iptables-services package:
yum install iptables-services
Enable the service at boot-time:
systemctl enable iptables
Managing the service
systemctl [stop|start|restart] iptables
Systemctl doesn’t seem to manage the save action like you were able to do in the past with servi/usr/libexec/iptables/iptables.init saves fixed it:
# ifconfig/sbin/service iptables save
bash: ifconfig/sbin/service: No such file or directory
# /sbin/service iptables save
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
# sudo service iptables status
Redirecting to /bin/systemctl status iptables.service
iptables.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
# /sbin/service iptables save
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
# sudo service iptables start
Redirecting to /bin/systemctl start iptables.service
Failed to issue method call: Unit iptables.service failed to load: No such file or directory.
With RHEL 7 / CentOS 7, firewalld was introduced to manage iptables. IMHO, firewalld is more suited for workstations than for server environments.
It is possible to go back to a more classic iptables setup. First, stop and mask the firewalld service:
systemctl stop firewalld
systemctl mask firewalld
Then, install the iptables-services package:
yum install iptables-services
Enable the service at boot-time:
systemctl enable iptables
Managing the service
systemctl [stop|start|restart] iptables
Systemctl doesn’t seem to manage the save action like you were able to do in the past with servi/usr/libexec/iptables/iptables.init saves fixed it:
yum install iptables-services systemctl mask firewalld systemctl enable iptables systemctl enable ip6tables systemctl stop firewalld systemctl start iptables systemctl start ip6tables
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