CentOS 7 service systemnctl

 在之前的版本中关闭防火墙等服务的命令是
 
service iptables stop
 
/etc/init.d/iptables stop
 
在RHEL7中,其实没有这个服务
 
[root@rhel7 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)
[root@rhel7 ~]# service iptables stop
Redirecting to /bin/systemctl stop  iptables.service
[root@rhel7 ~]# /etc/init.d/iptables stop
-bash: /etc/init.d/iptables: No such file or directory
 
原来在RHEL7开始，使用systemctl工具来管理服务程序，包括了service和chkconfig
 
[root@rhel7 ~]# systemctl list-unit-files|grep enabled
cups.path                                   enabled
abrt-ccpp.service                           enabled
abrt-oops.service                           enabled
abrt-vmcore.service                         enabled
abrt-xorg.service                           enabled
abrtd.service                               enabled
accounts-daemon.service                     enabled
atd.service                                 enabled
auditd.service                              enabled
avahi-daemon.service                        enabled
bluetooth.service                           enabled
chronyd.service                             enabled
crond.service                               enabled
cups.service                                enabled
dbus-org.bluez.service                      enabled
dbus-org.fedoraproject.FirewallD1.service   enabled
dbus-org.freedesktop.Avahi.service          enabled
dbus-org.freedesktop.ModemManager1.service  enabled
dbus-org.freedesktop.NetworkManager.service enabled
dbus-org.freedesktop.nm-dispatcher.service  enabled
display-manager.service                     enabled
dmraid-activation.service                   enabled
firewalld.service                           enabled
firstboot-graphical.service                 enabled
gdm.service                                 enabled
getty@.service                              enabled
hypervkvpd.service                          enabled
hypervvssd.service                          enabled
irqbalance.service                          enabled
iscsi.service                               enabled
ksm.service                                 enabled
ksmtuned.service                            enabled
libstoragemgmt.service                      enabled
libvirtd.service                            enabled
lvm2-monitor.service                        enabled
mdmonitor.service                           enabled
microcode.service                           enabled
ModemManager.service                        enabled
multipathd.service                          enabled
NetworkManager-dispatcher.service           enabled
NetworkManager.service                      enabled
nfs-lock.service                            enabled
packagekit-offline-update.service           enabled
postfix.service                             enabled
rhsmcertd.service                           enabled
rngd.service                                enabled
rpcbind.service                             enabled
rsyslog.service                             enabled
rtkit-daemon.service                        enabled
smartd.service                              enabled
spice-vdagentd.service                      enabled
sshd.service                                enabled
sysstat.service                             enabled
systemd-readahead-collect.service           enabled
systemd-readahead-drop.service              enabled
systemd-readahead-replay.service            enabled
tuned.service                               enabled
vmtoolsd.service                            enabled
avahi-daemon.socket                         enabled
cups.socket                                 enabled
dm-event.socket                             enabled
iscsid.socket                               enabled
iscsiuio.socket                             enabled
lvm2-lvmetad.socket                         enabled
rpcbind.socket                              enabled
default.target                              enabled
graphical.target                            enabled
nfs.target                                  enabled
remote-fs.target                            enabled 
 
禁用防火墙
 
[root@rhel7 ~]# systemctl stop firewalld.service
[root@rhel7 ~]# systemctl disable firewalld.service
[root@rhel7 ~]# systemctl status firewalld.service
firewalld.service – firewalld – dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled)
   Active: inactive (dead)
 
Jul  :: rhel7 systemd[]: Started firewalld – dynamic firewall daemon.
Jul  :: rhel7 systemd[]: Stopping firewalld – dynamic firewall daemon…
Jul  :: rhel7 systemd[]: Stopped firewalld – dynamic firewall daemon.
Jul  :: rhel7 systemd[]: Stopped firewalld – dynamic firewall daemon.
Jul  :: rhel7 systemd[]: Stopped firewalld – dynamic firewall daemon.
Jul  :: rhel7 systemd[]: Starting firewalld – dynamic firewall daemon…
Jul  :: rhel7 systemd[]: Started firewalld – dynamic firewall daemon.
Jul  :: rhel7 systemd[]: Stopping firewalld – dynamic firewall daemon…
Jul  :: rhel7 systemd[]: Stopped firewalld – dynamic firewall daemon.
Jul  :: rhel7 systemd[]: Stopped firewalld – dynamic firewall daemon.
 
启动一个服务：systemctl start firewalld.service
关闭一个服务：systemctl stop firewalld.service
重启一个服务：systemctl restart firewalld.service
显示一个服务的状态：systemctl status firewalld.service
在开机时启用一个服务：systemctl enable firewalld.service
在开机时禁用一个服务：systemctl disable firewalld.service
查看服务是否开机启动：systemctl is-enabled firewalld.service;echo $?
查看已启动的服务列表：systemctl list-unit-files|grep enabled