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This article is about how to use the systemctl command in Linux. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

The systemctl command, a common Linux command, is a system services manager directive that actually combines the two commands service and chkconfig.

systemctl system service manager directive

Additional instructions for tasks Old instructions New instructions Make a service start automatically chkconfig-level 3 httpd onsystemctl enable httpd.service Make a service not start automatically chkconfig-level 3 httpd offsystemctl disable httpd.service Check service status service httpd statussystemctl status httpd.service (service details) systemctl is-active httpd.service (active only) Show all started services chkconfig-listsystemctl list-units-type= service start service httpd startsystemctl start httpd.service stop service httpd stopsystemctl stop httpd.service restart service httpd restart systemctl restart httpd.service reload service httpd reload systemctl reload httpd.service instance systemctl start nfs-server.service . #Start the nfs service systemctl enable nfs-server.service #Set the startup startup systemctl disable nfs-server.service #Stop the startup systemctl status nfs-server.service #View the current status of the service systemctl restart nfs-server.service #Restart a service systemctl list-units --type=service #View all started services Open firewall port 22

iptables -I INPUT -p tcp --dport 22 -j accept If there is still a problem, it may be SELinux

Close SElinux:

Modify SELINUX="" as disabled in/etc/selinux/config file and restart.

Close the firewall completely:

sudo systemctl status firewalld.service sudo systemctl stop firewalld.service sudo systemctl disable firewalld.service Thank you for reading! About "how to use systemctl command in Linux" this article is shared here, I hope the above content can be of some help to everyone, so that everyone can learn more knowledge, if you think the article is good, you can share it to let more people see it!

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