So, you can make your monitoring solution as complex or as easy as you like. If do use qos for monitoring packets, then you'll need to think about gathering data about network utilisation. What ever solutions you build, if your network is busy, think about implementiing some kind of qos, so that your monitoring packets take priority on the network, losing measurement packets due to network congestion can give false alarms. We had a situation where machines (clients in public rooms) would be switched off, we gathered that data and the sent wake on lan packets, to power up the machines. If you have managed ethernet switches you can get physical link data, revealing if the machine is actually switched on, or had been physically unplugged. Using a combination of arpping, tcpping, and icmp ping you can find out if the service on the machine has crashed, the tcp stack has crashed, or the machine has locked up completely.
Max ping console csgo code#
EXample is a tcp stack crash, although rare these days, we could find if a machine tcp stack had crashed, as the machine would not respond to ping, however it would respond to arp (which is a different piece of code on the host). You can use a combination of arpping and icmp ping, or in fact tcp ping, to gather what the failure is. You may want to look at arp ping tool if all your hosts are on the physical LAN.It does the same thing but uses layer 2 arp packets to do the 'ping'.
Max ping console csgo update#
On Debian Lenny, installation is trivial: aptitude update I accepted the fping solution (thanks for all the other answers).
This is why I do not want to scan all the subnet (with a ping -b for example). They are on the same vlan and subnet as the users (for simplicity of deployment and replacement).
Is there a way to set the timeout to a lower value? If not, are there any alternatives? I tried to set it to below a second, but it does not seem to take the parameter into account at all: ping -c 1 -W 0.1 10.0.0.1 # timeout option is ignored, apparently
Max ping console csgo Offline#
I think I'm interested in the latter.īut waiting one second per offline host is still too long. I checked man ping, there seem to be two options to set the timeout delay: -w deadline and -W timeout. Unfortunately, when a host is offline, the ping takes a long time to timeout. So, my script launches a single ping for each host: ping -c 1 10.0.0.1 I have the DHCP leases file, so I have all the IPs (say, 10.0.0.1, 10.0.0.2, etc.), all I need is the ping status for each host. I am trying to write a script that lists all the hosts on my LAN (there a about 20 of them) and writes the ping status next to each host.
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