Linux Services

Winbind unifies UNIX and Windows NT account management by allowing a UNIX box to become a full member of a NT domain. The service provided by winbind daemon, is called winbind and can be used to resolve user and group information from a Windows NT server, which makes it understandable by UNIX platforms. The service can also provide authentication services via an associated PAM module. The pam_winbind module supports the auth, account and password module-types. The winbind service is provided … [Read more...] about Linux OS Service ‘winbind’

This service manages RPCSEC GSS contexts for the NFSv4 client, which provides support on the client side for RPCSEC_GSS protocol. It will start rpc.gssd daemon to communicate with server-side rpcsec_gss daemon rpc.svcgssd. If using NFSv4, it is needed. The rpcsec_gss protocol gives a means of using the gss-api generic security api to provide security for protocols using rpc (in particular, nfs). Before exchanging any rpc requests using rpcsec_gss, the rpc client must first establish a … [Read more...] about Linux OS Service ‘rpcgssd’

irqbalance is a Linux daemon that distributes interrupts over among the processors and cores in your computer system. The design goal of irqbalance is to do find a balance between power savings and optimal performance. To a large degree, the work irqbalance does is invisible to you. The daemon balances savings in power consumption with performance. irqbalance is relevant on multiprocessor x86, x86_64, and AMD systems. The irqbalance configuration file /etc/sysconfig/irqbalance allows the … [Read more...] about Linux OS Service ‘irqbalance’

smartd is a daemon that monitors the Self-Monitoring, Analysis and Reporting Technology (SMART) system built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives. The purpose of SMART is to monitor the reliability of the hard drive and predict drive failures, and to carry out different types of drive self-tests. This version of smartd is compatible with ATA/ATAPI-7 and earlier standards. smartd will attempt to enable SMART monitoring on ATA devices (equivalent to smartctl -s on) and … [Read more...] about Linux OS Service ‘smartd’

The sshd (Secure Shell Daemon) service is part of the OpenSSH implementation for Linux that provides authenticated, end-to-end encrypted networked communication. For example, a user on one host can log in to another system without using a password because the sshd service can be configured to use alternate authentication techniques such as exchanging shared-key information. OpenSSH uses a client/server technology. A client, such as a user running the ssh program, initiates a connection to the … [Read more...] about Linux OS Service ‘sshd’

This is the Name Service Cache Daemon. It takes care of group and password lookups for running programs and then caches the lookup results for the next query for services that can experience slowness in picking up changes such as NIS or LDAP. If you’re running these services, you may want to run nscd. This daemon can cache data for name services, /etc/hosts, DNS, NIS, NIS+ etc. This is only for local users on the machine, because the cache is realized by wrapping the functions in glibc, … [Read more...] about Linux OS Service ‘nscd’

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Squid offers a rich access control, authorization and logging environment to develop web proxy and content serving applications.The Squid caching proxy server can also be configured as a reverse proxy to redirect http (Port 80) connections. When acting as a reverse proxy, the cached content is delivered from the proxy server to the client without exposing the origin of the web server or data on the internal … [Read more...] about Linux OS Service ‘squid’

The xendomains service automatically starts, stops, and migrates Oracle VM clients (domU) as the Oracle VM server (dom0) boots or shuts down. In essence, the xendomains service automatically issues a series of xm commands to ensure the proper Oracle VM clients are started and stopped as the dom0 server is started or stopped. No daemons or other background processes are controlled by the xendomains service; only dom0 client virtual machines. Part of the Oracle VM Server product, the … [Read more...] about Linux OS Service ‘xendomains’

Linux provides both server-side and client-side support for the Lightweight Directory Access Protocol (LDAP) facility. This is a standards-based facility, so it is compatible with other LDAP implementations, including Microsoft's Active Directory. Data suitable for a directory service has low volatility as LDAP is optimized for read-mostly access; database systems are tailored for more volatile data. A classic example of data suitable for directory services is the ordinary telephone … [Read more...] about Linux OS Service ‘ldap’

The yppasswdd service executes the yppasswdd daemon. The yppasswdd is a part of NIS (Network Information Service formerly Yellow Pages) server. This server allows users to change their password on a NIS server from a NIS client. The service must be run on the NIS master server for that NIS domain in conjunction with ypserv, the NIS server daemon. When a yppasswd client contacts the server, it sends the old user password along with the new one to rpc.yppasswdd which will search the system’s … [Read more...] about Linux OS Service ‘yppasswdd’