Under Linux, those services can be disabled __linux

My CentOS 6.0 NTSYSV configuration, the following enable, other full 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 Official Service Introduction:

Acpid

Listen and dispatch ACPI signals from kernel. Leave it on if you have a fairly new BIOS as it handles shutting the power to your computer

Anacron

This is runs cron jobs that were scheduled to run when the system is down. Safe to disable, unless your had a cron job that makes backups at Thimes the system is down

Apmd

Advanced Power Management daemon. Leave it in If you have a laptop, or a battery backup. Disable it if you have a desktop.

Arpwatch

Arpwatch is a tool which 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 are used to schedule commands. Unless the AT command, your can turn it off

AutoFS

AutoFS is usually used for mounting network shares. Could is disabled for desktop systems.

Bluetooth

Huh? Do your want Bluetooth on turn on your computer?

Canna

Japanese support. Not needed unless can read Japanese

Cpuspeed

Cpuspeed for Linux adjusts the CPU speed dynamically based in the demand for processing. Disable it unless you are using a laptop

Crond

This is handles cron jobs, a essential part of Linux systems. Do not turn the unless you are a lunatic, a expert or both

Cups

Common UNIX Printing Solution. It is one system the computer uses the print queue. Leave it on if you have a printer

gpm

Lets 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 your are hosting, this can is turned off.

Httpsd

Same thing as httpd, except secure. You are probably want this off as a, unless to your site as https://

Inetd/xinetd

Do not confuse this with Xine the movie player. Both of these are importand services. Don't turn off.

Iptables

Iptables is part of the Linux Firewall. Leave it on if your are on a network, especially if you are the web for the world connected.

Irda

INFRA Red Data Association. Unless you are doing IR, don ' t need this.

Isdn

ISDN Deamon for ISDN connections. Not needed unless your connect to the net through ISDN.

Kuzdu

New Hardware Detection utility. Disable it if you never the change your setup

Lm_sensors

Sensors is used for monitoring motherboard sensor values. Unless your mother board has to sensors it's measure, and other temperature your stuff like to would, this can is 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 are 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 are probably don ' t need this.

Pcmcia

The PCMCIA is to support Ethernet and modems in laptops. 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

Rhnsd

The RedHat network. Not needed if your use Yum for all your updates

Rpcgssd/rpcidmapd/rpcsvcgssd

These are network File System daemons. If You don't use NFS, turn it off

Sendmail/smtpd

For the If your machine is a mail server. If not, it would mostly handle log alerts and other similar activities. It won't pose a security threat to leave it.

Smb/smbd/nmbd/winbind

For use if your want to network your Linux box with a Windows machine, and have the Linux box appear in the ' Network NEIGHB Orhood '

Snmpd/snmptrapd

Simple Network Management Protocol. You are probably don ' t need this.

Squid

Use this to become a sort of cache for Internet requests from your local network. Unless Internet requests go through for you, this can is disabled

Sshd/telnetd/rshd

Allow remote users to log onto your computer. Unless you need this, disable it. SSH is the most secure.

Syslog

Keep this. IT logs your system activities.

Vsftpd

This makes your computer is an FTP server. Unless you want people to access your computer via FTP, disable this

Wine

Keeps a copy of WINE loaded can just double click on a. exe to run it. You won ' t-you-option unless you have WINE installedLinux System daemon detaileddo not close the following services: acpid, Haldaemon, Messagebus, KLOGD, network, SYSLOGD 1.NetworkManager, NetworkmanagerdispatcherNetworkManager is a background process that automatically switches network connections. Many notebook users need to enable this feature, which allows you to switch between the wireless network and the Wired network. Most desktop users should turn off the service. Some DHCP users may need to open it.2.acpidProfile:/proc/acpi/event Description: Advanced Configuration and Power Interface, a new source management standard for replacing traditional APM power management standards. It is recommended that all notebook users open it. Some servers may not require ACPI. Common operations supported are: "Power switch", "Battery Monitor", "notebook Lid Switch", "Notebook display Brightness", "hibernate", "Hang Machine", and so on.3.anacronConfiguration file:/etc/anacrontab Description: An automated run task. Red Hat Linux comes with four tools for automating tasks: Cron, Anacron, at, and batch. When your Linux host does not turn on all the time, this anacron can help you perform work that has not been performed during the "crontab" setting. For example, when your host shuts down at 12:00 in the evening, but crontab this routine work is done at 4:00, the routine work is not working. But it can be done with Anacron. Whether you need to start: If the host has been powered up 24 hours and Cron is running, then the daemon does not need to be started. Anacron, ATD, cron, these scheduling programs have a very small number of differences. It is recommended that you turn on cron, and if your computer will run for a long time, it should be open. For servers, you should have a better understanding of which scheduler should be open. In most cases, laptops/desktops should turn off ATD and Anacron. Note: The execution of some tasks requires anacron, such as cleaning/tmp or/var.4.APMDConfiguration file:/ETC/SYSCONFIG/APMD Description: Advanced power Management, advanced source management. The traditional power management standard. The general system will support both APM and APMD two flags at the same time, but the system can load only one load. It is more useful for laptops to understand the "battery power" of your system. Whether you need to start: if we are using a desktop computer or a machine that has been powered on, we do not need to use this daemon.5.atdConfiguration file:/etc/at.allow,/etc/at.deny Description: An automated run task. Whether it needs to be started: it usually needs to be started. But if you are using cron all the time, you can also not start.6.autofsProfile:/etc/sysconfig/autofs Description: Realize the automatic loading of removable storage media such as CD-ROM, floppy disk, U disk and so on. Whether you need to start: generally do not need to start.7.avahi-daemon, AVAHI-DNSCONFDDescription: Avahi is the implementation of ZEROCONF protocol. It can find devices and services based on the ZEROCONF protocol in a LAN without DNS service. It's the same as MDNs. Unless you have a compatible device or service using the ZEROCONF protocol, you should close it.8.bluetooth, Hcid, Hidd, SDPD, Dund, PandDescription: Bluetooth is used for wireless portable devices (non-wifi, 802.11). Many notebooks offer Bluetooth support. There are bluetooth mouse, Bluetooth headset and Bluetooth-enabled mobile phone. If you do not have a Bluetooth device or Bluetooth-related service, you should close it. Other Bluetooth-related services include: Hcid manages all visible Bluetooth devices, Hidd support for Input devices (keyboard, mouse), Dund support via Bluetooth dial-up connection, Pand allows you to connect Ethernet via Bluetooth.9.capiDescription: Only useful for users using ISDN devices. Most users should close it.10.cpuspeedNote: Monitor system idle percentage, reduce or accelerate CPU clock speed and voltage to minimize energy consumption while system is idle, and maximize system execution speed when system is busy. Whether you need to start: need to start.11.crondConfiguration file:/etc/crontab Description: The daemon used to perform routine commands. Whether you need to start: Must start.12.cupsProfile: Cups Server profile:/etc/cups/cupsd.conf Cups client configuration file:/etc/cups/client.conf