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Start/Stop/Remove Services
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| [1] | Stop unnecessary services for your system which are enabled on the default settings. First, Output the list of services with following commands. |
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[root@ns ~]# |
| [2] | Stop unnecessary services. Following example, a service 'yum-updatesd' is stopped and Disable autostart function. |
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[root@ns ~]# /etc/rc.d/init.d/yum-updatesd stop Stopping yum-updatesd [ OK ] [root@ns ~]# chkconfig yum-updatesd off |
| [3] | Or if a service is not needed for your system, Uninstall it. If you don't know the service which how to work, output documents of it. Following example, documents of 'yum-updatesd' is outputed and uninstalled. |
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[root@ns ~]# man yum-updatesd yum-updatesd(8) NAME yum-updatesd - Update notifier daemon SYNOPSIS yum-updatesd DESCRIPTION
yum-updatesd provides notification of updates which are available to be
applied to your system. This notification can be either via syslog, email or over dbus.
Configuration is done via the yum-updatesd.conf (5) file.
SEE ALSO
yum (8) yum-updatesd.conf (5) http://linux.duke.edu/yum/ Jeremy Katz 2006 June 26 yum-updatesd(8) [root@ns ~]# rpm -e yum-updatesd |
| [4] | Following lists are all services on the default settings if you would installed with the same way to this site. The one which has marked '*' is the one I turned on for autostart. |
| NetworkManager | The NetworkManager daemon attempts to keep an active network connection available at all times. | |
| acpid | Advanced Configuration and Power Interface event daemon. | |
| anacron | Anacron can be used to execute commands periodically, with a frequency specified in days. | |
| apmd | Advanced Power Management (APM) BIOS utilities for laptops. | |
| atd | atd runs jobs queued by at. | |
| auditd | The audit package contains the user space utilities for storing and searching the audit records generate by the audit subsystem in the Linux 2.6 kernel. | * |
| autofs | autofs controls the operation of the automount(8) daemons running on the Linux system. | |
| avahi-daemon | Avahi mDNS/DNS-SD daemon Avahi is a fully LGPL framework for Multicast DNS Service Discovery. | |
| avahi-dnsconfd | avahi-dnsconfd is a small daemon which may be used to configure conventional DNS servers using mDNS in a DHCP-like fashion. | |
| bluetooth | It provids wireless connections among computers. | |
| conman | ConMan is a serial console management program designed to support a large number of console devices and simultaneous users. | |
| cpuspeed | This program monitors the systemfs idle percentage and reduces or raises the CPUsf clock speeds and voltages accordingly to minimize power consumption when idle and maximize perfor-mance when needed. | |
| crond | The daemon to execute scheduled commands. | * |
| cups | It's the print system. | |
| dund | It's BlueZ Bluetooth dial-up networking daemon. | |
| firstboot | It's a tool that we can configure basic settings ofthe system by it. | |
| gpm | It's a cut and paste utility and mouse server for virtual consoles. | |
| haldaemon | It searches infomations for hardwares. | |
| hidd | It's Bluetooth HID daemon. | |
| ip6tables | It's IPv6 packet filter administration. | |
| iptables | It's administration tool for IPv4 packet filtering and NAT. | |
| irda | IrDA is a complete implementation of the various IrDA protocols and IrDA drivers for Linux. | |
| irqbalance | It distributes hardware interrupts across processors on a multiprocessor system. | * |
| kudzu | It detects and configures new and/or changed hardware on a system. | |
| lvm2-monitor | Monitor LVM2 with using dmeventd. | |
| mcstrans | It's the daemon for SELinux. | |
| mdmonitor | It watches software-based RAID. | |
| mdmpd | It watches software-based RAID. | |
| messagebus | It sends messages between apprications. | * |
| microcode_ctl | It's microcode utility for Intel IA32 processors. | |
| multipathd | Manage kernel's function called DeviceMapper. | |
| netfs | It's NFS client. | |
| netplugd | It's the daemon for network cable hotplug management. | |
| network | It's the daemon for network system. | * |
| nfs | It's NFS server. | |
| nfslock | It provids file lock function for NFS server. | |
| nscd | Nscd is a daemon that provides a cache for the most common name service requests. | |
| oddjobd | The oddjobd daemon provides the com.redhat.oddjob service on the system-wide message bus. | |
| pand | The pand PAN daemon allows your computer to connect to ethernet networks using Bluetooth. | |
| pcscd | It's PC/SC Smart Card Daemon. | |
| portmap | Portmap is a server that converts RPC program numbers into DARPA protocol port numbers. | |
| psacct | PSACCT is a standard process running on each node that generates daily usage logs containing information on the jobs that ran and how many resources they consumed. | |
| rawdevices | The rawdevices is allocated in the block device. | |
| rdisc | Detect routers in local subnet. | |
| readahead_early | It reads files in page cache early. | |
| readahead_later | It reads files in page cache early when system is running in GUI mode. | |
| restorecond | It's the daemon that watches for file creation and then sets the default SELinux file context. | |
| rpcgssd | It's the daemon which is used for network filesystem like NIS or NFS. | |
| rpcidmapd | It's the daemon which is used for network filesystem like NIS or NFS. | |
| rpcsvcgssd | It's the daemon which is used for network filesystem like NIS or NFS. | |
| saslauthd | saslauthd is a daemon process that handles plaintext authentication requests on behalf of the SASL library. | |
| sendmail | It's SMTP server. | |
| smartd | It's SMART Disk Monitoring Daemon. | |
| sshd | It's OpenSSH SSH daemon. | * |
| syslog | It reads and/or clears kernel message ring buffer; set console_loglevel. | * |
| tcsd | TrouSerS server daemon | |
| wpa_supplicant | Provide IEEE 802.1x authentication. | |
| xfs | It's X fonts server. | |
| ypbind | ypbind finds the server for NIS domains and maintains the NIS binding information. | |
| yum-updatesd | yum-updatesd provides notification of updates which are available to be applied to your system. |