1
vote
1answer
40 views

What is the difference between sar -B verses sar -W

I am trying to understand why my system is running slowly. I found the sar command, but wanted to know the difference between sar -B and sar -W I read the man page, and I understand that -B gives me ...
0
votes
1answer
484 views

Smart Notifications (Whom to contact for what) in Icinga

I have Icinga 1.10 installed and I am using NagiosQL to configure it. I am stuck a bit on tweaking alerts and notifications. Icinga has implied inheritance. Assume we have a production web server ...
0
votes
1answer
309 views

Observium and SNMP

I have Observium installed but I can't seem to get the unix-agent to get MySQL, Apache and other statistics. I have the unix-agent enabled under the Poller Modules. I have also tested and ensured ...
3
votes
2answers
306 views

Load average is greater than the number of EC2 Compute Units

On an EC2 m1.large, with an AVG CPU Utilization graph such as this: how is is possible that the load average is greater than the number of EC2 Compute Units (4) ? cat /proc/loadavg 5.78 5.57 5.44 ...
2
votes
2answers
444 views

Record SSH / Terminal into video?

If someone access to the server via Putty (SSH) or terminal - I want to record everything what they can see on the screen and what they have typed into video.. What is the solution to this, is there ...
1
vote
1answer
777 views

Contact group for alerting after one hour in Nagios / OMD

I am trying to find a solution for the scenario below. I have a few hundred services in a Nagios (OMD install with check_mk and other delicious stuff) and they are defined as different service types ...
2
votes
1answer
357 views

Is there a way to run top as a daemon to gather historical process data?

I am aware that I can write a cron job that will run top in batch mode and write the output to a file but I am looking for something more elegant than that. Also I am aware of sysstat (sar) but I am ...
5
votes
0answers
281 views

Intermittent munin-cron error “There is nothing to do here, since there are no nodes with any plugins”

We've installed munin monitoring on one of our servers. Generally it seems to be working well but occasionally, 4 times in 2 months to be exact, munin-cron has generated the following error: ...
0
votes
1answer
103 views

Server performance and disk usage portal?

I'm looking for a good web based portal to install on internal production servers to give information about the health of the server to people who have no login permission for that server at the ...
21
votes
3answers
3k views

Find out which process is changing a file

I'm trying to find a reliable way of finding which process on my machine is changing a configuration file (/etc/hosts to be specific). I know I can use lsof /etc/hosts to find out what processes ...
4
votes
7answers
1k views

Remote Linux server monitoring

I'm looking for a solution to monitor multiple Linux servers remotely. I don't need a whole lot of granular data, just basic things like server load and critical error notifications. I'm no Linux ...