系統(tǒng)服務(wù)管理器指令
systemctl命令 是系統(tǒng)服務(wù)管理器指令,它實(shí)際上將 service 和 chkconfig 這兩個命令組合到一起。
任務(wù)
舊指令
新指令
使某服務(wù)自動啟動
chkconfig –level 3 httpd on
systemctl enable httpd.service
使某服務(wù)不自動啟動
chkconfig –level 3 httpd off
systemctl disable httpd.service
檢查服務(wù)狀態(tài)
service httpd status
systemctl status httpd.service (服務(wù)詳細(xì)信息) systemctl is-active httpd.service (僅顯示是否 Active)
顯示所有已啟動的服務(wù)
chkconfig –list
systemctl list-units –type=service
啟動某服務(wù)
service httpd start
systemctl start httpd.service
停止某服務(wù)
service httpd stop
systemctl stop httpd.service
重啟某服務(wù)
service httpd restart
systemctl restart httpd.service
1.啟動nfs服務(wù)
systemctl start nfs-server.service
2.設(shè)置開機(jī)自啟動
systemctl enable nfs-server.service
3.停止開機(jī)自啟動
systemctl disable nfs-server.service
4.查看服務(wù)當(dāng)前狀態(tài)
systemctl status nfs-server.service
5.重新啟動某服務(wù)
systemctl restart nfs-server.service
6.查看所有已啟動的服務(wù)
systemctl list -units --type=service
開啟防火墻22端口
iptables -I INPUT -p tcp --dport 22 -j accept
如果仍然有問題linux命令大全,就可能是SELinux導(dǎo)致的
關(guān)閉SElinux:
修改/etc/selinux/config文件中的SELINUX=””為disabledlinux命令大全,然后重啟。
徹底關(guān)閉防火墻:
sudo systemctl status firewalld.service
sudo systemctl stop firewalld.service
sudo systemctl disable firewalld.service
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