Linux Services

Service Name sendmail Description This executes Mail Server Daemon which runs as a daemon in the background, listening for incoming mail from other machines. Sendmail can handle both incoming and outgoing mail. Sendmail eliminates some of the confusion caused by multiple mail delivery programs. It does this by routing mail for the user to the […]

Service Name NetFS Description NetFS is a boot-time script used to mount or unmount Network File System (NFS), Samba (SMB/CIFS), and Netware (NCP) file systems. The script is run once at boot time to scan for network-related file system mounts: nfs, smb, cifs, or ncp types. Service administration To view the options available for administrating […]

Service Name cpuspeed Description This executes a daemon which dynamically adjusts CPU speed and voltage based on demand for CPU and automatically detects available CPU speeds. This is necessary only for Note/Desktop PC, but not for server. This daemon monitors the system’s idle percentage and reduces or raises the CPUs’ clock speeds and voltages accordingly […]

Service Name ntpd Description This service executes the Network Time Protocol (NTP) daemon ntpd. The purpose is to synchronize the time of the local computer to a NTP server or other reference time source such as a radio or satellite receiver or modem. The NTP time protocol provides accuracies typically within a millisecond on LANs […]

Service Name microcode_ctl Description microcode_ctl updates a microcode in IA32 CPU. The microcode is prepared as a file /etc/firmware/microcode.dat. As this service can fix microcode bugs by updating CPU microcode this should be available.m however only for Intel IA32. Basically, running “service microcode_ctl start” doesn’t start up a daemon, it first checks if the processor […]

Service Name nfs Description The Network File System (NFS) is a server/client based networking protocol. NFS daemons are composed by nfsd, rpc.mountd, rpc.rquotad, rpc.lockd. 1. nfsd: nfsd handles client requests from remote systems. Multiple copies of this daemon are usually run so that several requests can be handled simultaneously. However, too many copies of nfsd […]

Service Name network Description The ‘network‘ service activates or deactivates all network interfaces configured to start at boot time. The traditional TCP/IP v4 networking is always enabled if networking is used. The newer TCP/IP v6 may be selectively enabled here. The default system hostname is also provided here but may be later changed as individual […]

Service Name portmap Description Portmap service maps RPC requests to the correct services. RPC processes notify portmap when they start, revealing the port number they are monitoring and the RPC program numbers they expect to serve. The client system then contacts portmap service on the server with a particular RPC program number. portmap then redirects […]

Service Name auditd Description auditd is the userspace component to the Linux Auditing System. It’s responsible for writing audit records to the disk. Viewing the logs is done with the ausearch or aureport utilities. Configuring the audit rules is done with the auditctl utility. During startup, the rules in /etc/audit.rules are read by auditctl. The […]

Service Name iptables Description The iptables utility controls the network packet filtering code in the Linux kernel. If you need to set up firewalls and/or IP masquerading, you should install this tool. The /sbin/iptables application is the userspace command line program used to configure the Linux IPv4 packet filtering rules. Since Network Address Translation (NAT) […]