Vnstat - Revision history

Leo: Updated categories

2022-01-03T06:12:16Z

Updated categories

← Older revision		Revision as of 06:12, 3 January 2022
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	Ensure that the cronjob and daemon is active and running. Check by running {{code\|ps -eaf\|grep vnstat}}. There should be at least noe vnstat daemon running.		Ensure that the cronjob and daemon is active and running. Check by running {{code\|ps -eaf\|grep vnstat}}. There should be at least noe vnstat daemon running.

			{{Navbox Linux}}
	[[Category:~~Guides~~]]		[[Category:Linux]]
	~~{{Navbox Linux}}~~[[Category:~~Linux~~]]		[[Category:LinuxUtilities]]

	~~{{Navbox Services}}~~

Leo: Text replacement - "Redhat" to "Red Hat"

2020-06-15T04:38:46Z

Text replacement - "Redhat" to "Red Hat"

← Older revision		Revision as of 04:38, 15 June 2020
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	== Installation ==		== Installation ==
	On ~~Redhat~~/Fedora based systems, vnstat should be available from the main repository. For older versions of ~~Redhat~~ such as CentOS 6, it is available from the EPEL repository.		On Red Hat/Fedora based systems, vnstat should be available from the main repository. For older versions of Red Hat such as CentOS 6, it is available from the EPEL repository.

	=== Installing from Source ===		=== Installing from Source ===

Leo: Text replacement - "Category:Linux{{Navbox Linux}}" to "{{Navbox Linux}}Category:Linux"

2019-09-01T06:22:20Z

Text replacement - "Category:Linux{{Navbox Linux}}" to "{{Navbox Linux}}Category:Linux"

← Older revision		Revision as of 06:22, 1 September 2019
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	[[Category:Guides]]		[[Category:Guides]]
	[[Category:Linux]]~~{{Navbox Linux}}~~		{{Navbox Linux}}[[Category:Linux]]

	{{Navbox Services}}		{{Navbox Services}}

Leo: Text replacement - "{{Navbox Linux}}{{Navbox Linux}}" to "{{Navbox Linux}}"

2019-09-01T05:10:51Z

Text replacement - "{{Navbox Linux}}{{Navbox Linux}}" to "{{Navbox Linux}}"

← Older revision		Revision as of 05:10, 1 September 2019
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	[[Category:Guides]]		[[Category:Guides]]
	[[Category:Linux]]~~{{Navbox Linux}}~~{{Navbox Linux}}		[[Category:Linux]]{{Navbox Linux}}

	{{Navbox Services}}		{{Navbox Services}}

Leo: Text replacement - "Category:Linux" to "Category:Linux{{Navbox Linux}}"

2019-09-01T05:07:22Z

Text replacement - "Category:Linux" to "Category:Linux{{Navbox Linux}}"

← Older revision		Revision as of 05:07, 1 September 2019
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	[[Category:Guides]]		[[Category:Guides]]
	[[Category:Linux]]{{Navbox Linux}}		[[Category:Linux]]{{Navbox Linux}}{{Navbox Linux}}

	{{Navbox Services}}		{{Navbox Services}}

Leo: Text replacement - "Category:Linux " to "Category:Linux{{Navbox Linux}} "

2019-09-01T03:30:38Z

Text replacement - "Category:Linux " to "Category:Linux{{Navbox Linux}} "

← Older revision		Revision as of 03:30, 1 September 2019
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	[[Category:Guides]]		[[Category:Guides]]
	[[Category:Linux]]		[[Category:Linux]]{{Navbox Linux}}

	{{Navbox Services}}		{{Navbox Services}}

Leo: format highlighting

2015-12-09T22:04:56Z

format highlighting

← Older revision		Revision as of 22:04, 9 December 2015
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	The following instructions will set up vnstat from source and should work for CentOS/ScientificLinux/RHEL linux distributions.		The following instructions will set up vnstat from source and should work for CentOS/ScientificLinux/RHEL linux distributions.

	{{highlight\|lang=~~bash~~\|code=		{{highlight\|lang=terminal\|code=
	wget http://humdi.net/vnstat/vnstat-1.11.tar.gz		# wget http://humdi.net/vnstat/vnstat-1.11.tar.gz
	tar -xzf vnstat-1.11.tar.gz		# tar -xzf vnstat-1.11.tar.gz
	cd vnstat-1.11		# cd vnstat-1.11
	make		# make
	make install		# make install
	vnstat --testkernel		# vnstat --testkernel
	/bin/cp examples/init.d/centos/vnstat /etc/init.d/vnstat		# /bin/cp examples/init.d/centos/vnstat /etc/init.d/vnstat
	chkconfig --levels 234 --add vnstat		# chkconfig --levels 234 --add vnstat
	vnstat -u -i eth0		# vnstat -u -i eth0
	/etc/init.d/vnstat start		# /etc/init.d/vnstat start
	}}		}}

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	=== Force Update ===		=== Force Update ===
	If the cronjob fails for some reason, you may force an update by running:		If the cronjob fails for some reason, you may force an update by running:
	{{highlight\|lang=~~bash~~\|code=		{{highlight\|lang=terminal\|code=
	sudo -u /usr/sbin/vnstat.cron --force		# sudo -u /usr/sbin/vnstat.cron --force
	}}		}}

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	To show the live traffic in bytes (rate unit option {{code\|-ru 0}})		To show the live traffic in bytes (rate unit option {{code\|-ru 0}})

	{{highlight\|lang=~~bash~~\|code=		{{highlight\|lang=terminal\|code=
	vnstat -l -ru 0		# vnstat -l -ru 0
	(press CTRL-C to stop)		(press CTRL-C to stop)

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	=== Show Usage by Month ===		=== Show Usage by Month ===
	{{highlight\|lang=~~bash~~\|code=		{{highlight\|lang=terminal\|code=
	vnstat -d		# vnstat -d
	}}		}}

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	You may get the following error if your interface is not being recorded:		You may get the following error if your interface is not being recorded:
	{{highlight\|lang=text\|code=		{{highlight\|lang=text\|code=
	enp3s0: Not enough data available yet.		enp3s0: Not enough data available yet.
	}}		}}

Leo: /* Show Live Traffic Statistics */

2015-11-14T08:15:36Z

Show Live Traffic Statistics

← Older revision		Revision as of 08:15, 14 November 2015
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	=== Show Live Traffic Statistics ===		=== Show Live Traffic Statistics ===
			To show the live traffic in bytes (rate unit option {{code\|-ru 0}})

	{{highlight\|lang=bash\|code=		{{highlight\|lang=bash\|code=
			vnstat -l -ru 0
	(press CTRL-C to stop)		(press CTRL-C to stop)

Leo: live traffic usage

2015-11-14T08:14:39Z

live traffic usage

@@ Line 35: / Line 35: @@
 == Usage ==
 Here are some example uses with vnstat.
 === Show Usage by Month ===

Leo: reorganized information

2015-11-14T08:13:09Z

reorganized information

← Older revision		Revision as of 08:13, 14 November 2015
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			Vnstat is a command line based network usage monitoring tool. It is capable of showing the current network utilization as well as providing historical data.

	== Installation ==		== Installation ==
	~~Vnstat~~ should be available ~~through~~ the ~~yum package manager via~~ the EPEL repository.		On Redhat/Fedora based systems, vnstat should be available from the main repository. For older versions of Redhat such as CentOS 6, it is available from the EPEL repository.

	=== Installing from Source ===		=== Installing from Source ===
	The following instructions will set up vnstat from source and should work for CentOS/ScientificLinux/RHEL linux distributions.		The following instructions will set up vnstat from source and should work for CentOS/ScientificLinux/RHEL linux distributions.

	~~<syntaxhighlight~~ lang="bash~~" line start~~=~~"1" enclose="div">~~		{{highlight\|lang=bash\|code=
	wget http://humdi.net/vnstat/vnstat-1.11.tar.gz		wget http://humdi.net/vnstat/vnstat-1.11.tar.gz
	tar -xzf vnstat-1.11.tar.gz		tar -xzf vnstat-1.11.tar.gz
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	vnstat -u -i eth0		vnstat -u -i eth0
	/etc/init.d/vnstat start		/etc/init.d/vnstat start
	~~</syntaxhighlight>~~		}}

	== ~~Usage~~ ==		== Configuration ==
	~~You do not need~~ to ~~interface with~~ vnstat ~~directly since vnstat will create~~ a cronjob ~~in <~~code>/etc/cron.d/vnstat~~</code> which will run <code>/usr/sbin/vnstat.cron</code> as nobody every 5 minutes~~.		Vnstat makes use of a daemon to record network traffic into databases stored in {{code\|/var/lib/vnstat}} as well as a cronjob running at 5 minute intervals defined at {{code\|/etc/cron.d/vnstat}}.

	~~Depending on how your network interfaces are named and the number of interfaces you have~~, ~~you may~~ need to ~~fix or initialize~~ the vnstat ~~database~~.		By default, vnstat will only monitor eth0. You will need to adjust the {{code\|/etc/sysconfig/vnstat}} and {{code\|/etc/vnstat.conf}} configuration files accordingly.

	~~=== Initializing Database ===~~		You will also need to initialize the interface database by running {{code\|vnstat -u -i $InterfaceName}}, otherwise the daemon and cronjob will not record any data.
	To initialize a database ~~for a specific device:~~
	vnstat -u -i $~~NetInterface~~

	=== Force Update ===		=== Force Update ===
	sudo -u /usr/sbin/vnstat.cron --force		If the cronjob fails for some reason, you may force an update by running:
			{{highlight\|lang=bash\|code=
			sudo -u /usr/sbin/vnstat.cron --force
			}}

			== Usage ==
			Here are some example uses with vnstat.

			=== Show Usage by Month ===
			{{highlight\|lang=bash\|code=
			vnstat -d
			}}

			== Issues ==
			=== Not Enough Data ===
			You may get the following error if your interface is not being recorded:
			{{highlight\|lang=text\|code=
			enp3s0: Not enough data available yet.
			}}

			Ensure that the cronjob and daemon is active and running. Check by running {{code\|ps -eaf\|grep vnstat}}. There should be at least noe vnstat daemon running.