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  • Centos7禁止或者允许开机启动服务

    [root@bogon rsyslog.d]# systemctl is-enabled httpd
    disabled
    [root@bogon rsyslog.d]# systemctl status  httpd
    ● httpd.service - The Apache HTTP Server
       Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
       Active: inactive (dead)
         Docs: man:httpd(8)
               man:apachectl(8)
    
    Jun 26 04:51:42 bogon systemd[1]: httpd.service failed.
    Jun 26 04:53:28 bogon systemd[1]: Starting The Apache HTTP Server...
    Jun 26 04:53:29 bogon httpd[9652]: AH00558: httpd: Could not reliably determine the...age
    Jun 26 04:53:29 bogon systemd[1]: Started The Apache HTTP Server.
    Jun 26 05:38:31 bogon systemd[1]: Stopping The Apache HTTP Server...
    Jun 26 05:38:32 bogon systemd[1]: Starting The Apache HTTP Server...
    Jun 26 05:38:33 bogon httpd[12171]: AH00558: httpd: Could not reliably determine th...age
    Jun 26 05:38:33 bogon systemd[1]: Started The Apache HTTP Server.
    Jun 26 06:20:03 bogon systemd[1]: Stopping The Apache HTTP Server...
    Jun 26 06:20:04 bogon systemd[1]: Stopped The Apache HTTP Server.
    Hint: Some lines were ellipsized, use -l to show in full.
    [root@bogon rsyslog.d]# systemctl start  httpd              #开启自启动
    [root@bogon rsyslog.d]# systemctl status  httpd             #查看服务当前状态
    ● httpd.service - The Apache HTTP Server
       Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
       Active: active (running) since Mon 2017-06-26 07:56:27 PDT; 4s ago
         Docs: man:httpd(8)
               man:apachectl(8)
     Main PID: 15508 (httpd)
       Status: "Processing requests..."
       CGroup: /system.slice/httpd.service
               ├─15508 /usr/sbin/httpd -DFOREGROUND
               ├─15509 /usr/sbin/httpd -DFOREGROUND
               ├─15510 /usr/sbin/httpd -DFOREGROUND
               ├─15511 /usr/sbin/httpd -DFOREGROUND
               ├─15512 /usr/sbin/httpd -DFOREGROUND
               └─15513 /usr/sbin/httpd -DFOREGROUND
    
    Jun 26 07:56:25 bogon systemd[1]: Starting The Apache HTTP Server...
    Jun 26 07:56:26 bogon httpd[15508]: AH00558: httpd: Could not reliably determine th...age
    Jun 26 07:56:27 bogon systemd[1]: Started The Apache HTTP Server.
    Hint: Some lines were ellipsized, use -l to show in full.
    [root@bogon rsyslog.d]# systemctl stop  httpd               #禁止自启动
    [root@bogon rsyslog.d]# systemctl status  httpd
    ● httpd.service - The Apache HTTP Server
       Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
       Active: inactive (dead)
         Docs: man:httpd(8)
               man:apachectl(8)
    
    Jun 26 05:38:32 bogon systemd[1]: Starting The Apache HTTP Server...
    Jun 26 05:38:33 bogon httpd[12171]: AH00558: httpd: Could not reliably determine th...age
    Jun 26 05:38:33 bogon systemd[1]: Started The Apache HTTP Server.
    Jun 26 06:20:03 bogon systemd[1]: Stopping The Apache HTTP Server...
    Jun 26 06:20:04 bogon systemd[1]: Stopped The Apache HTTP Server.
    Jun 26 07:56:25 bogon systemd[1]: Starting The Apache HTTP Server...
    Jun 26 07:56:26 bogon httpd[15508]: AH00558: httpd: Could not reliably determine th...age
    Jun 26 07:56:27 bogon systemd[1]: Started The Apache HTTP Server.
    Jun 26 07:56:35 bogon systemd[1]: Stopping The Apache HTTP Server...
    Jun 26 07:56:36 bogon systemd[1]: Stopped The Apache HTTP Server.
    Hint: Some lines were ellipsized, use -l to show in full.
    [root@bogon rsyslog.d]# systemctl start  httpd
    [root@bogon rsyslog.d]# systemctl restart  httpd
    [root@bogon rsyslog.d]# systemctl enable  httpd
    Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
    [root@bogon rsyslog.d]# systemctl is-enabled  httpd         #查询是否自启动
    enabled
    [root@bogon rsyslog.d]# systemctl disable  httpd            #禁止自启动
    Removed symlink /etc/systemd/system/multi-user.target.wants/httpd.service.
    [root@bogon rsyslog.d]# systemctl is-enabled  httpd
    disabled
    [root@bogon rsyslog.d]# systemctl list-unit-files|grep enabled      #查看自启动服务列表
    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 
    autovt@.service                             enabled 
    avahi-daemon.service                        enabled 
    chronyd.service                             enabled 
    crond.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 
    gdm.service                                 enabled 
    getty@.service                              enabled 
    irqbalance.service                          enabled 
    iscsi.service                               enabled 
    kdump.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 
    postfix.service                             enabled 
    qemu-guest-agent.service                    enabled 
    rngd.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 
    xinetd.service                              enabled 
    avahi-daemon.socket                         enabled 
    dm-event.socket                             enabled 
    iscsid.socket                               enabled 
    iscsiuio.socket                             enabled 
    lvm2-lvmetad.socket                         enabled 
    lvm2-lvmpolld.socket                        enabled 
    rpcbind.socket                              enabled 
    virtlockd.socket                            enabled 
    virtlogd.socket                             enabled 
    default.target                              enabled 
    graphical.target                            enabled 
    nfs-client.target                           enabled 
    remote-fs.target                            enabled 
    runlevel5.target                            enabled 
    [root@bogon rsyslog.d]# 
    

    还有基于运行级别上的设置,例如在图形模式下启动httpd,但是在命令行模式下禁止自启httpd等。以后会补充进来

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  • 原文地址:https://www.cnblogs.com/biaopei/p/7730547.html
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