What is avahi-daemon service The avahi-daemon Linux service runs on client machines to perform network-based Zeroconf service discovery. Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zeroconf Networking. User applications receive notice of discovered network services and resources using the Linux D-Bus message passing. The daemon coordinates application efforts in caching replies, helping minimize network traffic. Avahi provides a set of … [Read more...] about How to disable avahi-daemon service in CentOS/RHEL
How to disable avahi-daemon service in CentOS/RHEL
CentOS/RHEL 5 : How to disable the yum update automatically
The service yum-updatesd periodically checks against configured yum repositories to ensure that all system software is up to date, and will alert a user, via the above configuration file, to do so. The checking of the repositories is done via port 80, hence the intermittently open connection. This will not perform an update, but rather is merely informational, telling only the status of updates. The yum-updatesd daemon uses a configuration file at /etc/yum/yum-updatesd.conf. This file defines … [Read more...] about CentOS/RHEL 5 : How to disable the yum update automatically
Linux OS Service ‘yum-updatesd’
The yum-updatesd daemon regularly checks the yum repository and provides notification of updates available for your system. Notifications can be made via syslog, email or dbus, a communication method used between applications. When configured to connect a yum repository, the daemon calls the "yum update" command to update packages on the system. The yum-updatesd service (/etc/init.d/yum-updatesd) is provided by the yum-updatesd package. When started, the service calls /usr/sbin/yum-updatesd, a … [Read more...] about Linux OS Service ‘yum-updatesd’
Linux OS Service ‘acpid’
The acpid daemon supports the Advanced Configuration and Power Interface (ACPI) to allow intelligent power management on your system and to query battery and configuration status. It listens on a file (/proc/acpi/event) and when an event occurs, executes programs to handle the event. Rules are defined by simple configuration files. acpid will look in a configuration directory (/etc/acpi/events by default), and parse all files that do not begin with a period ('.'). Each file must define two … [Read more...] about Linux OS Service ‘acpid’
Manage ASM Audit Files with syslog – configure lograte and auditing
The audit file destination directories for an ASM instance can grow to contain a very large number of files if they are not regularly maintained. Having a very large number of files can cause the file system to run out of free disk space or inodes, or can cause Oracle to run very slowly due to file system directory scaling limits, which can have the appearance that the ASM instance is hanging on startup. This post explains how to use the Linux syslog facility to manage ASM auditing records so … [Read more...] about Manage ASM Audit Files with syslog – configure lograte and auditing
Linux OS Service ‘rpcidmapd’
This executes rpcidmapd, with NFS service. The rpcidmapd maps usernames to UID and GID numbers. Service Control To manage the rpcidmapd service on demand, use the service tool or run the /etc/init.d/rpcidmapd script directly: # /sbin/service rpcidmapd Usage: /etc/init.d/rpcidmapd {start|stop|restart|condstart|condrestart|status} # /etc/init.d/rpcidmapd Usage: /etc/init.d/rpcidmapd {start|stop|restart|condstart|condrestart|status} The available commands are: CommandDescription … [Read more...] about Linux OS Service ‘rpcidmapd’
Linux OS Service ‘avahi-daemon’
The avahi-daemon Linux service runs on client machines to perform network-based Zeroconf service discovery. Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zeroconf Networking. User applications receive notice of discovered network services and resources using the Linux D-Bus message passing. The daemon coordinates application efforts in caching replies, helping minimize network traffic. Avahi provides a set of language bindings, including Python … [Read more...] about Linux OS Service ‘avahi-daemon’
How to Use the ‘truss’ Command for Program and Error Analysis in Solaris
Truss is a debugging tool which provides insight into how a program operates by printing out system service calls along with their arguments and return statuses, faults, and signals. As such it is extremely useful for debugging errors and for figuring out how programs work. Truss is easy to use: just prepend the word "truss" to any command (including arguments) in its simplest form, and output abounds. By default, truss output goes to stderr (error output), not to stdout (normal output). This … [Read more...] about How to Use the ‘truss’ Command for Program and Error Analysis in Solaris
Linux OS Service ‘rusersd’
rpc.rusersd is a server which returns information about users currently logged in to the system. The currently logged in users are queried using the rusers command. The rpc.rusersd daemon is normally invoked by inetd. rpc.rusersd uses an RPC protocol defined in /usr/include/rpcsvc/rusers.x. When starting the 'rusersd' service, it first starts the portmap service if not already running, then starts the 'rpc.rusersd' daemon. When stopping the 'rusersd' service, the rpc.rusersd daemon is … [Read more...] about Linux OS Service ‘rusersd’
Linux OS Service ‘httpd’
httpd is the Apache HyperText Transfer Protocol (HTTP) server program. It is designed to be run as a standalone daemon process. When used like this it will create a pool of child processes or threads to handle requests. In general, httpd should not be invoked directly, but rather should be invoked via apachectl on Unix-based systems. The httpd RPM package provides the /usr/sbin/httpd daemon and its configuration files. Service Control To manage the httpd service on demand, use the service … [Read more...] about Linux OS Service ‘httpd’