Linux_ exception _netfilter firewall _failed to restart iptables.service: Unit Not Found.

tags: Linux server network operation  netfilter  linux

[root@test ~]# 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.
[root@test ~]# service iptables restart
Redirecting to /bin/systemctl restart iptables.service
Failed to restart iptables.service: Unit not found.
[root@test ~]# sudo ufw status
Sudo: UFW: Can't find the command
[root@test ~]# systemctl stop firewalld
[root@test ~]# systemctl mask firewalld
Created symlink from /etc/systemd/system/firewalld.service to /dev/null.
[root@test ~]# yum install iptables-services
 Loaded plug-in: FastestMirror, Langpacks
Determining fastest mirrors
 * base: mirror.bit.edu.cn
 * extras: mirror.bit.edu.cn
 * updates: mirrors.bfsu.edu.cn
base                                                                                                                           | 3.6 kB  00:00:00     
extras                                                                                                                         | 2.9 kB  00:00:00     
updates                                                                                                                        | 2.9 kB  00:00:00     
(1/3): extras/7/x86_64/primary_db                                                                                              | 222 kB  00:00:00     
(2/3): base/7/x86_64/primary_db                                                                                                | 6.1 MB  00:00:00     
(3/3): updates/7/x86_64/primary_db                                                                                             | 3.7 MB  00:00:01     
 Solving dependencies
 -> Inspection of affairs
 ---> Software package iptables-services.x86_64.0.1.4.21-35.el7 will be installed
 -> Processing dependencies iptables = 1.4.21-35.EL7, it is required by the package iptables-service-1.4.21-35.el7.x86_64
 -> Inspection of affairs
 ---> Software package iptables.x86_64.0.1.4.21-28.el7 will be upgraded
 ---> Software package iptables.x86_64.0.1.4.21-35.el7 will be updated
 -> Solve dependencies

 Dependency resolution

======================================================================================================================================================
   Package architecture version source size
======================================================================================================================================================
 Installing: 
 iptables-services                         x86_64                         1.4.21-35.el7                            base                          52 k
 Update for dependencies:
 iptables                                  x86_64                         1.4.21-35.el7                            base                         432 k

 Professional summary
======================================================================================================================================================
 Install 1 package
 Upgrade (1 dependent package)

 Total download: 485 k
Is this ok [y/d/N]: y
Downloading packages:
No Presto metadata available for base
(1/2): iptables-services-1.4.21-35.el7.x86_64.rpm                                                                              |  52 kB  00:00:00     
(2/2): iptables-1.4.21-35.el7.x86_64.rpm                                                                                       | 432 kB  00:00:00     
------------------------------------------------------------------------------------------------------------------------------------------------------
 Total 1.9 MB / s | 485 KB 00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
     Updated: iptables-1.4.21-35.el7.x86_64 1/3 
     I am installed: iptables-service-1.4.21-35.el7.x86_64 2/3 
     Clean up: iptables-1.4.21-28.el7.x86_64 3/3 
     Verification: iptables-services-1.4.21-35.el7.x86_64 1/3 
     Verification: iptables-1.4.21-35.el7.x86_64 2/3 
     Verification: iptables-1.4.21-28.el7.x86_64 3/3 

 It has been installed: 
  iptables-services.x86_64 0:1.4.21-35.el7                                                                                                            

 As a dependent is upgraded:
  iptables.x86_64 0:1.4.21-35.el7                                                                                                                     

 complete!
[root@test ~]# systemctl enable iptables
Created symlink from /etc/systemd/system/basic.target.wants/iptables.service to /usr/lib/systemd/system/iptables.service.
[root@test ~]# systemctl start iptables
[root@test ~]# 

Reference:
How can i use iptables on centos 7? [closed]

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