linux下服务说明<转>

linux下服务说明
2011年12月13日
　　我的CentOS 6.0的ntsysv的配置，以下Enable,其它全disable:wr
　　NetworkManager/ acpid/ auditd/ autofs/ haldaemon/ iscsi/ iscsid
　　libvirt-guests/ messagebus/ netfs/ network/ nfs/ nfslock/portreserve
　　postfix/ rpcbind/ rpcidmapd/ rsyslog/ sshd/ sysstat/ tftp/ udev-post
　　vboxadd/ vboxadd-service/ vboxadd-x11/ xinetd
　　redhat官方服务介绍：
　　acpid
　　Listen and dispatch ACPI signals from kernel. Leave it on if you have a fairly new BIOS as it handles shutting of power to your computer
　　anacron
　　This runs cron jobs that were scheduled to run when the system was down. Safe to disable, unless you had a cron job that makes backups at thimes the system was down
　　apmd
　　Advanced power management daemon. Leave it on If you have a laptop, or a battery backup. Disable it if you have a desktop.
　　arpwatch
　　Arpwatch is a tool that monitors ethernet or fddi activity and maintain a database of ethernet/ip address pairings. You can probably disable it.
　　atd
　　Controls the at command, which is used to schedule commands. Unless you use the at command, you can turn it off
　　autofs
　　autofs is usually used for mounting network shares. Could be disabled for desktop systems.
　　bluetooth
　　Well? Do you want bluetooth on when you turn on your computer?
　　canna
　　Japanese support. Not needed unless you can read Japanese
　　cpuspeed
　　CPUSpeed for Linux adjusts the CPU speed dynamically based on the demand for processing power. Disable it unless you are using a laptop
　　crond
　　This handles cron jobs, an essential part of Linux systems. Do NOT turn this off unless you are a lunatic, an expert or both
　　cups
　　Common UNIX Printing Solution. It is one system the computer uses to control the print queue. Leave it on if you have a printer
　　gpm
　　Lets you use the mouse in text-only console. Leave it off If you never leave X window system
　　httpd
　　Makes your computer a webserver. Unless you have a webpage you are hosting, this can be turned Off.
　　httpsd
　　Same thing as httpd, except secure. You probably want this off as well, unless you get to your site as https://
　　inetd/xinetd
　　Do not confuse this with Xine the movie player. Both of these are importand services. Do not turn off.
　　iptables
　　iptables is part of the Linux Firewall. Leave it on if you are on a network, especially if you are connected to the world wide web.
　　irda
　　Infra Red Data Association. Unless you are doing IR, you don't need this.
　　isdn
　　ISDN deamon for ISDN connections. Not needed unless you connect to the net through ISDN.
　　kuzdu
　　New Hardware detection utility. disable it if you never change your setup
　　lm_sensors
　　Sensors is used for monitoring motherboard sensor values. Unless your mother board has sensors to measure it's temperature, and other stuff you would like to know, this can be off.
　　mpmpd/mdmonitor
　　The mdadm package includes software used to create, manage, and monitor software RAID volumes.
　　named
　　Named is a Domain Name Server. You don't need it unless you are acting as a DNS server.
　　netfs
　　Mounts/Unmounts all Network File Systems, Samba pount points. Not needed if you don't need to automount remote File Systems
　　nfs/nfslock/portmap
　　This is the server functionality for file sharing across TCP/IP networks
　　ntp/ntpd
　　Used for syncing time across a network. You probably don't need this.
　　pcmcia
　　PCMCIA is to support ethernet and modems in laptops. You can switch it off in desktops
　　pop3d
　　Used to run a pop3 server on the machine. Unless you are a mail server, you don't need this
　　r