Tagged Questions
1
vote
0answers
367 views
Quickly check whether many network hosts are up-and-running
Objective: check if a host is up-and-running on the network,
with a method that can be efficiently parallelized over many hosts.
Emphasis on a QUICK turnaround of the check.
Reason to emphasise ...
4
votes
2answers
2k views
What prevents a machine from responding to pings?
I have a CentOS release 5.4 linux box on Amazon EC2 that I'm trying to set up to be monitored via Nagios. The machine is in the same security group as the nagios server, but it seems to be ...
2
votes
2answers
427 views
Behavior of ping with partial packet loss on Ubuntu
I am specifically looking on the return variables of running ping on my Ubuntu server, the variables I am looking for is: error status, output on stdout, output on stderr.
When pinging a host the ...
4
votes
4answers
1k views
“internet connection checker one-liner”
With this I can check, that there is "internet connection". if there is no "internet connection" (succesfull pings to this 2 places), then it waits 600 sec, then it runs along:
ping -W 1 -c 4 ...
4
votes
2answers
1k views
Can't ping broadcast
We're running four computers connected to a hub (yes a hub not a switch) on Fedora 13. They were installed using images from a colleague that has recently left us to go back to school, they may have ...
2
votes
1answer
286 views
Redhat Enterprise Linux 4.7 - Ping problem
When I try to ping some of the IP addresses I get "connect: No buffer space is available" error. Also when I check /var/log/messages, there are some errors like as following
printk: 99 messages ...
