March 2015
Intermediate to advanced
260 pages
5h 30m
English
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Troubleshooting in Zabbix
Sometimes Zabbix can be a real pain to troubleshoot if you don't know where to look. Here are some pointers:
- Since Zabbix 2.4 you will now see why your item has failed when you hover your mouse over the red box. This can help you a lot.
- Don't forget that Zabbix logs everything for agent proxy and server under the
/var/log/zabbix/file. If something fails, this is probably the second place to look at. - SELinux can mess with your installation too. For example, ping can be blocked by SELinux returning the wrong value as if your host is not reachable. Don't forget that since RHEL 6.5, there are SELinux policies for the agent that can be set as follows:
setsebool -P zabbix_can_network on - Even if you have set the Boolean, there ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.