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centos VPS monitoring software

post #1 of 34
Thread Starter 
Im having issues with a VPS i bought.. that it keeps going down.

does anyone have any monitoring software that maybe could be loaded onto the server to self monitor the server and find out why its going down?
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post #2 of 34
Quote:
Originally Posted by Ace_001 View Post

Im having issues with a VPS i bought.. that it keeps going down.

does anyone have any monitoring software that maybe could be loaded onto the server to self monitor the server and find out why its going down?

It's already loaded. All logs will be in /var/log/

How familiar are you with Linux? I only ask because a lot of people buy Linux VPS solutions and don't really think much about securing their box but I've known a few people have their server hacked (and subsequently shutdown by the hosts because they've detected that the hack box was used for sending spam).
post #3 of 34
Thread Starter 
im not fermilliar with linux at all... im just using vps because of the flexablility of it being a game server, voice server, web server or any other server we want on demand.

anything that can be recommended would be appreciated
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post #4 of 34
Quote:
Originally Posted by Ace_001 View Post

im not fermilliar with linux at all... im just using vps because of the flexablility of it being a game server, voice server, web server or any other server we want on demand.

anything that can be recommended would be appreciated

Cool, here's a list of bullet points - some of which you might already have done but I want to cover all bases. I'll go into more detail on each and every point if you need me to, but if I do an overview here then there's a reference for you and others for what needs to be done to secure a box:
  • create a user account, check you can "su" from that and if so, disable root SSH log ins.
  • either disable password logins and/or install fail2ban and enabled SSH rules to prevent brute force attacks
  • check that your mail server and any database servers are only listening on localhost (127.0.0.1).
  • check that your game server, voice server and web server (and everything else that you run on that box) runs as a user and not as root. (this should be default)

I think those are the main things.
post #5 of 34
Thread Starter 
well..... umm..... here it is right now..

iv been trying to just remove the sendmail program... but i couldnt figure that one out...

basically this is a game server... that i will put vent or mumble on in the soon future... i have done my best not knowing linux to research how to set it up...

b7475b96-8397-437f-b8e9-ca9f555391d5.jpg
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post #6 of 34
you probably can't uninstall sendmail as it might have a lot of dependancies in other programs, but you can disable the service "service sendmail stop". Personally I'd keep it running though. You're real issue there is Java. It's consuming far too many resources so I wonder if your box is even powerful enough to do what you're asking (memory doesn't seem to be an issue, but CPU grunt certainly is)

Who's your VPS with and what package did you go for?
Edited by Plan9 - 5/12/13 at 3:43pm
post #7 of 34
Thread Starter 
lol the java running is a minecraft server... its a cpu hog.. i have dedicated 3 cpus for this.

i have creeperhost and its the skeleton package.
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post #8 of 34
Quote:
Originally Posted by Ace_001 View Post

lol the java running is a minecraft server... its a cpu hog.. i have dedicated 3 cpus for this.

i have creeperhost and its the skeleton package.
I know Java is running Minecraft server - if you look at the user column you can see that the process is owned by Minecraft tongue.gif
That spec does meet the recommended spec on Minecrafts website. How many active players do you have at any point in time? And do you run many mods?
post #9 of 34
Quote:
Originally Posted by Ace_001 View Post

Im having issues with a VPS i bought.. that it keeps going down.

does anyone have any monitoring software that maybe could be loaded onto the server to self monitor the server and find out why its going down?
@plan9 - I ran an 8 player server on a dual core 1.2ghz system with 4gb of ram... It wasn't plesant all the time (most of the time no hiccups) At any rate: that system never crashed, or went down.

@ace - when the server is "offline" is the VPS still online (I.E. can you still SSH in?) If not, the issue is on creeperhost's side of things. If you can; then minecraft is likely out of memory and dumping because of that; What command line are you using to start the server?
    
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post #10 of 34
Quote:
Originally Posted by Xaero252 View Post

@plan9 - I ran an 8 player server on a dual core 1.2ghz system with 4gb of ram... It wasn't plesant all the time (most of the time no hiccups) At any rate: that system never crashed, or went down.
The server I used to play Minecraft on was an old iMac PowerPC. It was something like 512MB RAM and a slow single core CPU. Amazingly Minecraft ran pretty well on that. However the recommended specs are a dual core with 4GB RAM (as your box was). And as top doesn't give any indication of the (virtual) CPUs -only memory usage and CPU load- I had to ask smile.gif
Quote:
Originally Posted by Xaero252 View Post

@ace - when the server is "offline" is the VPS still online (I.E. can you still SSH in?) If not, the issue is on creeperhost's side of things. If you can; then minecraft is likely out of memory and dumping because of that; What command line are you using to start the server?
That was my line of thinking too.
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