A Linux service is an application (or set of applications) that runs in the background waiting to be used, or carrying out essential tasks.

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systemd : write a .service daemon for setting up swap and fs in zram

I recently acquired a laptop with a ssd and in order not to weigh too much on the ssd (which I was told had a limited number of write cycles), I decided to write a systemd unit file for setting up a ...
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21 views

Is it possible to create aliases that affect services starting?

Currently I have a custom service that executes java in multiple places. I want to be able to add an option to any executions of java this service will spawn (I'm specifying the error log location, ...
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18 views

is it possible to have a dhcp client stop the dhcp service of the server after receiving an address?

Is there anything (specifically in linux machines) that can jump from client to server that would have the ability to perform a root-level task, such as stopping a service in an automated manner? ...
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1answer
23 views

How to start Virtual Box service on Linux

I performed a dist-upgrade and then and autoclean and autoremove. It disabled the Virtual Box service on Linux because the headers were out of date. The headers caught up, so I rebuilt the modules off ...
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54 views

Too many open ports in Debian 8

The IT department has given me 3 virtual servers with Debian 8 for my area, which I will manage (but they have some monitoring tools). Starting Nmap 6.40 ( http://nmap.org ) at 2015-05-11 13:33 ART ...
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43 views

Systemd service wanted by multiple targets

Is there a way to make a service wanted by multiple targets (or to have multiple install directives) so that when installed a symbolic link is created in all places. My example is the following ...
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39 views

Self-restarting service does not restart with systemd

I have several different services that can self-restart (e.g. after an auto-update). Unfortunately, when they restart, they do not come up. I can tell because service <service name> status tells ...
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64 views

Wireless LED indicator issue

The question itself: is there any way to make this indicator be turned ON and OFF depending on wireless status (not just blink when there is wireless activity)? After having installed Linux, I saw ...
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1answer
94 views

Run script every 30 min with systemd

I would like to execute a script every 30 min after booting into the system. I know you can use cron, but I don't plan to use this feature often therefore I'd like to try it with systemd. So far I ...
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50 views

is there a system-wide “extension” to /etc/services that does not get replaced on package updates?

I know how to use /etc/services but if I change it and the inetd package is later updated via apt-get to a new default one, my changes are gone (happened to me on a apt-get dist-upgrade from Debian ...
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Where do I put my web services? [closed]

I'm administrating my server since a few year but I'm looking for good practice like: What is the best place web service like my wordpress website files? My etherpad-lite instance? Which user shall ...
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113 views

What is brandbot?

What is the "brandbot" service running in Centos 7? What does it do? All I can find (it has no manpage) is "Flexible Branding Service" and that it's part of the "base" repo.
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1answer
60 views

Can I use a symbolic link as a service of systemd?

For instance, I have a service named mysshd.service under /usr/lib/systemd/system/ directory. Can I create a symbolic link such as: ln -s /usr/lib/systemd/system/mysshd.service ...
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46 views

What is the difference between “systemctl restart” and “systemctl start”?

I have two services A and B where B is dependent on A which means in the A's service unit i have After and Requires set to B After=B.service Requires=B.service Now when i stop the service B the ...
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1answer
28 views

Run custom service remotily on Linux

On the server side : ( @ip for example 10.0.0.3 ) Consider this simple script named script.sh : ( /home/user/script.sh ) #!/bin/bash echo good Let's create new service named script.sh under xinetd ...
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1answer
33 views

Option --skip-slave-start Not Working with Systemctl

I just started with centos 7. I'm trying to get replication working and am attempting to start mysql without starting the slave (so that I can set the pointers as to where it's supposed to resume ...
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193 views

How could we allow non-root users to control a system.d service?

With sysvinit, a sudoers entry like this would suffice: %webteam cms051=/sbin/service httpd * This would allow for commands such as: sudo service httpd status sudo service httpd restart Now, ...
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48 views

Linux- Stop a process running as daemon

I've started uwsgi as a daemon, how can I kill that process? Everytime I kill its pid, and then does ps aux | grep "uwsgi", it again comesin the output. I've also tried pkill uwsgi, but no use. How ...
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51 views

Optimal way to set and read variables

I need to set 6 variables which are used by several services and applications in Linux. I have so far been using the environment variables, but find it very complicating to modify these variables ...
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27 views

Start TCP-based service on demand, and stop it after connection is closed

A server needs to provide several huge (consuming lots of RAM) tcp-based services. What I want to achieve is, that they are started on-demand (lazy), and stopped after either the connection is closed ...
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56 views

Running etherpad as a service on raspberry pi

I am setting up etherpad-lite on my raspberry pi ubuntu 14.04 server. I got stuck trying to make etherpad-lite run as a service, following these instructions (I've also checked several others but that ...
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1answer
25 views

What happens to the services that do not have a killing-script in the new run level?

I read, that each runlevel has its own set of services or daemons, which can be looked up in /etc/rcX.d (X for the respect runlevel), there are scripts which names start with S and start services of ...
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54 views

How to debug failing service in Arch Linux

I have a application which i can run without any problems as a normal application. The application is using I2C and WiFi. I can detect the data flow through wireshark so i can confirm that it is ...
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22 views

How to backup current chkconfig configurations

How to backup current chkconfig configurations chkconfig --list list the current services configurations, and when (run level) a service set to start. I need to backup the configurations and check ...
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1answer
81 views

Create a service in Debian that sources a bash startup script

The server is running Debian 7 Wheezy without systemd. I have a user in Debian with Perlbrew installed into their home directory. The user is running a Mojolicious app. In order for the app to work, ...
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412 views

nginx won't to start

I have run nginx -t and it returns successful. On boot I see messages about nginx has failed to start, and it wont start when I try nginx or service nginx start Instead i get a message to check ...
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12 views

Will I be able to install a service as a sudoer?

I will need to install a custom application as a service on a RHEL 6.2 box this weekend. Will I be able to do this with sudoer powers or will I need the root password for anything?
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38 views

Service script and shared libraries

I have the following simple script IPN in CentOS 6.5 in /etc/init.d/ #!/bin/sh # chkconfig: 2345 05 06 cd /root/IPNHost . /etc/rc.d/init.d/functions start() { echo -n $"Starting..." ...
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86 views

Load a service in Linux programatically [closed]

Given a service name(created by user) and its path, how can I load and start the service at runtime from a C++ program in Ubuntu. Does there exists functions similar to the Windows functions such as ...
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1answer
51 views

FreeBSD: Restart one service each time another restarts

On FreeBSD, what is the correct/canonical way of specifying that one rc script is reliant on another, such that each time the service it depends on is restarted, the dependent service is then ...
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1answer
55 views

who controls a linux service?

How do I quickly find out who controls some linux service? I'm tired of poking around /etc to find out if initd, upstart, systemd or supervisord is controlling some service.
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59 views

What do +,- and ? symbols represent in `service --status-all`

What do +,- and ? symbols represent in service --status-all represent in Ubuntu 14.04. I am not able to understand it properly. I guess + here might mean delayed services which start after the ...
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122 views

Keeping track of service status continuously

I need to monitor the status of nagios service (Because, whenever I make any changes in configuration and apply the new configuration, I would find nagios service stopped). If found in 'stopped' ...
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225 views

How to enable systemd's service without waiting?

I'm trying to make fastest boot possible and did run systemd-analyze critical-chain: graphical.target @5.800s └─multi-user.target @5.800s └─NetworkManager.service @4.201s +1.598s └─basic.target ...
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87 views

How to use process substitution within a case statement without getting syntax errors?

I have a script loaded as a service in /etc/init.d/myfile When I try to start the service I get the error /etc/init.d/myservice: 21: /etc/init.d/myservice: Syntax error: "(" unexpected The issue ...
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1answer
102 views

How, on ubuntu, to run as a service / run under supervision

I have been given 3 clusters. One is of Kafka, one is of storm and one is of ZooKeeper. I need to make it so that the services start and when stopped, start up again as described in the Zookeeper ...
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701 views

Installing MySQL on CentOS throws error that cannot find mysqld.sock

I have yum install mysql in CentOS 6.4. Now, when I use mysql command, it throws the following error: ERROR 2002 (HY000): Can't connect to local MySQL server through socket ...
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1answer
68 views

How to remove a service that keeps the system from booting?

I created a service that starts a script using exec, because it works on upstart. On systemd it keeps the system from booting, because it waits for my script to end, but since it is a webserver, it ...
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1answer
6k views

How to list all running daemons?

From my question, it was clear that I cannot easily decide the features of a daemon.I have read in different articles and from different forums that service --status-all command can be used to list ...
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1answer
297 views

creating a custom service on ubuntu

I am setting up an ap called scumblr (https://github.com/Netflix/Scumblr/wiki) The final step calls for initiating the server using the following 3 commands: redis-server & ...
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130 views

(Super)user issues in handling services

Headless Ubuntu server 14.04. I have installed dropbox (as outlined here http://ubuntuserverguide.com/2012/06/how-to-install-and-configure-dropbox-on-ubuntu-server-12-04.html) and have added the ...
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2answers
601 views

Service start and Permission denied

I have a script that execute a java program, and I want to create a service to start this script at boot time. So I've created a script called run.sh. /test/run.sh #!/bin/bash java -cp ...
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3answers
372 views

Can't start a ZNC service

I try to start ZNC using the following command service znc start I get this error Starting znc: /usr/bin/dirname: extra operand `2>&1.pid' Try `/usr/bin/dirname --help' for more ...
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3answers
2k views

setting mysql root password in CentOS 7

How can I log into the mysql 5.6 command line client and reset the root password in Centos7? I read the following at this link, but it does not work: 1) sudo service mysqld stop 2) sudo service ...
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1answer
84 views

Trying to debug /etc/init.d/named, no output, replace > /dev/null with /var/log/named.log?

I'm trying to debug named, when I try: [root@test master]# service named start Starting named: [FAILED] it fails silently, so I tried: sed -i ...
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2answers
665 views

Can't start systemd user instance

I'm using CentOS 7, and am trying to create a systemd service for my local user. However, before I can do that, I need my systemd user instance, which I cannot find or create to begin with. Running ...
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Limit system reboot burst

Systemd allows to automatically restart services if they have crashed. To prevent indefinite services restart it uses @StartLimitInterval@ and @StartLimitBurst@ variables. Moreover, I can reboot ...
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47 views

How do you connect app and DB servers from separate containers?

With Docker, how can I make the DB in one container accessible by the app server in another?
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3answers
298 views

Nginx leaves old socket

I'm running Nginx 1.6.2 (the nginx-full package from the nginx/stable PPA). I'm using the unmodified configuration /etc/nginx/nginx.conf: user www-data; worker_processes 4; pid /run/nginx.pid; ...
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2answers
176 views

Start/stop service script like Ubuntu for RedHat

Is there a .sh script that manages starting and stopping the service like Debian/Ubuntu but for Red Hat/Fedora? Looking to place it into the file running some software.