RHEL/Fedora/CentOs System Service Optimization

NetworkManager, NetworkManagerDispatcher
Automatically switch between multiple network connections. If the computer has Wireless WiFi and Ethernet, open it and select the best available connection for you. If you only use one network connection, disable it.
Anacron, atd, crond
This is a background service for some debugging programs. Generally, users on the desktop can turn off anacron and atd. If you plan to start the system at regular time, open crond. We recommend that you always turn crond on.
Auditd
Used to store system review records generated by the kernel. These records will be used by some programs. This is especially true for SELinux users.
Autofs
It is automatically mounted to the mobile hard disk. If you have nothing to say, it is on.
Avahi-daemon, avahi-dnsconfd
It is mainly used for Zero Configuration Networking.
Bluetooth, hcid, hidd, sdpd, dund, pand
Bluetooth-related. If there is no Bluetooth, turn it off.
Btseed, bttrack
BT-related. If you cannot use BT, you can disable it.
Capi
ISDN hardware support, most users can turn off
Cpuspeed
CPU speed adjustment if you are using Pentium-M, Centrino, AMD PowerNow, Transmetta, Intel SpeedStep, Athlon-64, Athlon-X2, Intel Core 2
Open it. If not, it will be useless to open it.
Cupsd
CUPS printer support. If there is no printer or another type of printer, you can turn it off.
Dhcdbd
D-BUS system network interface, mainly to provide you with network connection settings, it is strongly recommended to open, unless you use a fixed IP to access the Internet.
Firstboot
The User Wizard after the installation of Fedora is usually disabled.
Gpm
Text console (CTRL-ALT-F1, F2..) mouse support, if you do not commonly used Text console, you can turn off
Haldaemon
HAL (Hardware release action Layer) service. Open it.
Maid, hpiod, hpssd
You can use the e-hpc printer if it is on.
Httpd
Apache HTTP web server. If you do not develop a web page, close it.
Ip6tables
If you do not need IPv6, disable it.
Iptables
Firewall, nothing to say, open
Irda
Supported by infrared devices and disabled by others
Irqbalance
Multi-core CPU support
Isdn
Supported by ISDN modem; Disabled
Jexec
If you install java 1.6, you can double-click to run the *. jar file. Close it if you don't want it.
Kudzu
Fedora hard disk detection service, which can be used when you replace or add a hard disk.
Lirc
Support for infrared remote control
Mcstrans
It is mainly used for SELinux. If you do not need SELinux, you can disable it.
Mdmonitor
RAID supported, Disabled
Messagebus
For Linux ICP service, we recommend that you enable strong columns.
Netfs
If you need to share files over the network, open
Netplugd
It is useless for most users.
Network
Nothing to say. On; unless you do not access the Internet
Nfs, nfslock
File Sharing is supported. You can disable it if you do not need it.
Nscd
NIS, NIS +, LDAP, or hesiod service password control. You can disable these services.
Ntpd
The Network Time Synchronization is similar to that of windows. You can disable it if you don't need it.
Nvidia-96XX or nvidia-97XX
Livna nvidia graphics card driver, open
Pcscd
Smart Card support
Readahead_early, readahead_later
Boot Memory loading is optimized. Open it.
Restorecond
SELinux is used to monitor files. You can disable SELinux.
Rpcbind
RPC service. Generally, it can be disabled.
Rpcgssd, rpcidmapd, rpcsvcgssd
NFS support. You can disable NFS protection.
Sendmail
Email sending proxy. If you use Webmail, Thunderbird, or Kmail to send and receive emails. Yes.
Setroubleshoot
SELinux Troubleshooting. You can disable SELinux.
Smartd
SMART Disk Monitoring, fast boot self-check, open it
Smolt
Useless, close it
Sshd
The OpenSSH server can usually be shut down. This is the server end. Disabling does not affect ssh usage.
Syslog
System log. Open it.
Vncserver
Desktop Users can shut down
Winbind
You can turn it off without using the Samba server.
Wpa_supplicant
Wireless Device Support
Ypbind
No NIS/YP. You can disable it.
Yum-update
Automatic periodic update detection. Yes.

Author: "nightcat"