1./etc/rc.local 自啟動
2.通過chkconfig管理
如何讓一個腳本被chkconfig管理
[root@oldboyedu01 ~]# vim /etc/init.d/oldgirld
# chkconfig: 2345 99 99 ##這步必須的 vim /etc/init.d/crond 配置中可見
# description:[XM1] Saves and restores system entropy pool for \
echo 1
~
[root@oldboyedu01 ~]# chmod +x /etc/init.d/oldgirld ##給文件加x執行權限
[root@oldboyedu01 ~]# chkconfig --add oldgirld ##添加自啟動
[root@oldboyedu01 ~]# chkconfig |grep old
oldgirld 0:off 1:off 2:on 3:on 4:on 5:on6:off
翻譯
RUNLEVEL FILES
Each service which should be manageable by chk-
config needs two or more commented lines added
to its init.d script. The first line tells chk-
config what runlevels the service should be
started in by default, as well as the start and
stop priority levels. If the service should
not, by default, be started in any runlevels, a
- should be used in place of the runlevels
list. The second line contains a description
for the service, and may be extended across
multiple lines with backslash continuation.
For example, random.init has these three lines:
# chkconfig: 2345 20 80
# description: Saves and restores system entropy pool for \
# higher quality random number generation.
This says that the random script should be
started in levels 2, 3, 4, and 5, that its
start priority should be 20, and that its stop
priority should be 80. You should be able to
figure out what the description says; the \
causes the line to be continued. The extra
space in front of the line is ignored.
譯：
RUNLEVEL文件每個服務應該由chkconfig管理，chkconfig需要添加到init.d腳本中的兩個或更多注釋行。第一行告訴chkconfig默認應該在什么運行級別啟動服務，以及啟動和停止優先級級別。在任何運行級別中，都應該使用a-來代替runlevel列表。通過反斜杠的延續。例如，Rand.init有以下三行：#chkconfig：2345 20 80#Description：保存和恢復系統熵池以提高質量\#隨機數生成。這意味着隨機腳本應該在級別2、3、4和5中啟動，它的開始優先級應該是20，它的停止優先級應該是80。你應該能夠弄清楚描述中寫了什么；\導致行被繼續。該行前面的額外空間被忽略了。
# chkconfig: 2345 20 80
# description: Saves and restores system entropy pool for \
# higher quality random number generation.
使用范例:
chkconfig --list #列出所有的系統服務
chkconfig --add httpd #增加httpd服務
chkconfig --del httpd #刪除httpd服務
chkconfig --level httpd 2345 on #設置httpd在運行級別為2、3、4、5的情況下都是on(開啟)的狀態
chkconfig --list #列出系統所有的服務啟動情況
chkconfig --list mysqld #列出mysqld服務設置情況
chkconfig --level 35 mysqld on #設定mysqld在等級3和5為開機運行服務,--level 35表示操作只在等級3和5執行,on表示啟動,off表示關閉
chkconfig mysqld on #設定mysqld在各等級為on,“各等級”包括2、3、4、5等級
如何增加一個服務:
1.服務腳本必須存放在/etc/ini.d/目錄下;
2.chkconfig --add servicename
在chkconfig工具服務列表中增加此服務,此時服務會被在/etc/rc.d/rcN.d中賦予K/S入口了; 3.chkconfig --level 35 mysqld on
修改服務的默認啟動等級。
[XM1]說明，注釋