Strange server behaviour

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  • EukerVoorn
    So Fucking Banned
    • Aug 2011
    • 1423

    #1

    Strange server behaviour

    I started to get complaints from members this week about slow download speeds from my server at i3d in Rotterdam. Yesterday I checked the graphs and the server is generating a constant 10 to 20mbit/sec bandwidth, not leaving enough room for other traffic even though it should have an unmetered 100mbit/sec connection. I can't even wget files to another server anymore, lucky if I'm getting 10kbit/sec, most of the time it stalls.

    First I thought the server was hacked or used for a DDOS, so this morning I remotely switched it off completely, but now the strange thing is that even when it was switched off for a few hours, the graphs still show 10mbit/sec bandwidth during that period. How is this possible? Something wrong with the connection?

  • BIGTYMER
    Junior Achiever
    • Nov 2004
    • 17066

    #2
    Thats a huge jump in out traffic. Checks what's running and consuming the resources.

    My guess is you did get hacked.

    Comment

    • OneWhoKnows
      Confirmed User
      • Aug 2005
      • 873

      #3
      Originally posted by BIGTYMER
      Thats a huge jump in out traffic. Checks what's running and consuming the resources.

      My guess is you did get hacked.
      Yeah, looks like it - although it still doesn't really explain why 10 to 20mbit outgoing already maxes out his 100mbit unmetered line and why the traffic doesn't stop when turning off the server.

      Comment

      • Kafka
        Confirmed User
        • Oct 2002
        • 466

        #4
        The graph is from the switch connected to your server.

        Comment

        • grumpy
          Too lazy to set a custom title
          • Jan 2002
          • 9870

          #5
          your switch is overloaded, not your server. Look at the server cpu usage.
          Don't let greediness blur your vision | You gotta let some shit slide
          icq - 441-456-888

          Comment

          • EukerVoorn
            So Fucking Banned
            • Aug 2011
            • 1423

            #6
            That's the strange thing, cpu nor server memory is overloaded and I don't see anything of this bandwidth in the server stats itself either. But yes if this bandwidth persists when server is switched off, it can't be generated by the server, right? And this connection sure isn't 100mbit either, right? I feel like I'm getting fucked up my arse again, why does this always happen to me, a good person?
            Last edited by EukerVoorn; 01-14-2012, 04:31 AM.

            Comment

            • cooldude7
              Confirmed User
              • Nov 2009
              • 4306

              #7
              Originally posted by EukerVoorn
              That's the strange thing, cpu nor server memory is overloaded and I don't see anything of this bandwidth in the server stats itself either. But yes if this bandwidth persists when server is switched off, it can't be generated by the server, right? And this connection sure isn't 100mbit either, right? I feel like I'm getting fucked up my arse again, why does this always happen to me, a good person?
              glad you figured it out.

              Comment

              • VGeorgie
                Confirmed User
                • Nov 2008
                • 359

                #8
                Outbound is traffic TO your server (the graph shows the connection from the perspective of the switch), so you can still have that traffic with the server switched off. My suspicion would be when your server is on look at the CPU load, and check the http logs. If you don't see unusual activity your host is probably being hosed and the target is another server that's also on your switch. You're seeing chatter across the switch. It's like noise that filters across the connections. Contact your host for an update.
                Last edited by VGeorgie; 01-14-2012, 07:06 AM.

                Comment

                • oscer
                  Confirmed User
                  • Jan 2001
                  • 2834

                  #9
                  Originally posted by EukerVoorn
                  That's the strange thing, cpu nor server memory is overloaded and I don't see anything of this bandwidth in the server stats itself either. But yes if this bandwidth persists when server is switched off, it can't be generated by the server, right? And this connection sure isn't 100mbit either, right? I feel like I'm getting fucked up my arse again, why does this always happen to me, a good person?
                  you sure you haven't been attacked ? you should probably have someone jump in there and check it out . If you need any help or advice feel free to icq me
                  XR Networks
                  Dedicated | VPS | Shared Hosting
                  ICQ 42602565

                  Comment

                  • V_RocKs
                    Damn Right I Kiss Ass!
                    • Nov 2003
                    • 32449

                    #10
                    Originally posted by EukerVoorn
                    That's the strange thing, cpu nor server memory is overloaded and I don't see anything of this bandwidth in the server stats itself either. But yes if this bandwidth persists when server is switched off, it can't be generated by the server, right? And this connection sure isn't 100mbit either, right? I feel like I'm getting fucked up my arse again, why does this always happen to me, a good person?
                    Because good people generally look more aesthetic than bad people making them the target of ones affection at a higher rate.

                    Comment

                    • signupdamnit
                      Confirmed User
                      • Aug 2007
                      • 6697

                      #11
                      I think it looks like an attack as well. The sudden spike makes it apparent something is going on.

                      If you are paying for dedicated 100mbit then you should be periodically testing your server to make sure you can actually use about 80% of that. I've heard of some providers playing games.

                      You don't like my posts? Put me on ignore or fuck right off. I'll say what I want.

                      Comment

                      • EukerVoorn
                        So Fucking Banned
                        • Aug 2011
                        • 1423

                        #12
                        Update: they connected the server to another switch, assigned other ip addresses to it and now it works fine again apart from the promised 100mbit/sec speed, they said they can get 1.5mbit/sec at the most. Needless to say that I won't be their long term customer. Am moving everything to another server elsewhere already. I may even demand a refund for the in advance paid fee.

                        Comment

                        • borked
                          Totally Borked
                          • Feb 2005
                          • 6284

                          #13
                          Originally posted by EukerVoorn
                          Update: they connected the server to another switch, assigned other ip addresses to it and now it works fine again apart from the promised 100mbit/sec speed, they said they can get 1.5mbit/sec at the most. Needless to say that I won't be their long term customer. Am moving everything to another server elsewhere already. I may even demand a refund for the in advance paid fee.
                          if you need a speed test from another dc to test your real bandwidth, hit me up. you have my email already.

                          For coding work - hit me up on andy // borkedcoder // com
                          (consider figuring out the email as test #1)



                          All models are wrong, but some are useful. George E.P. Box. p202

                          Comment

                          • EukerVoorn
                            So Fucking Banned
                            • Aug 2011
                            • 1423

                            #14
                            Update: the problem was solved the same day already after I put some gentle pressure on them. They connected to server to another switch/ip address and it's much faster now. I don't think it's 100mbit/s yet, I'm now getting 20mbit/s from server to server. Borked: a test would still be interesting so I'll mail you about that this week.

                            Comment

                            • Rothstein
                              So Fucking Banned
                              • Jan 2012
                              • 682

                              #15
                              lol get a real host.

                              Comment

                              • k0nr4d
                                Confirmed User
                                • Aug 2006
                                • 9231

                                #16
                                Install a piece of software you can run in ssh called 'iptraf'. It's a nice graphical interface for seeing how much BW is being used by each port going in and out.
                                Mechanical Bunny Media
                                Mechbunny Tube Script | Mechbunny Webcam Aggregator Script | Custom Web Development

                                Comment

                                • borked
                                  Totally Borked
                                  • Feb 2005
                                  • 6284

                                  #17
                                  Originally posted by k0nr4d
                                  Install a piece of software you can run in ssh called 'iptraf'. It's a nice graphical interface for seeing how much BW is being used by each port going in and out.
                                  ftw

                                  For coding work - hit me up on andy // borkedcoder // com
                                  (consider figuring out the email as test #1)



                                  All models are wrong, but some are useful. George E.P. Box. p202

                                  Comment

                                  • EukerVoorn
                                    So Fucking Banned
                                    • Aug 2011
                                    • 1423

                                    #18
                                    Ok thanks for the suggestion I'll ask someone to install that on the server. And I cancelled the server contract, of course. This was the last in a long row of incidents,they are inbreed imbeciles and I already have another server at a great hosting provider elsewhere.

                                    Comment

                                    • HomerSimpson
                                      Too lazy to set a custom title
                                      • Sep 2005
                                      • 13826

                                      #19
                                      the stats are week old.
                                      check the dates on them

                                      go to ssh and run
                                      service mrtg restart

                                      hit me up if you need any help
                                      http://www.awmzone.com/services
                                      Make a bank with Chaturbate - the best selling webcam program
                                      Ads that can't be block with AdBlockers !!! /// Best paying popup program (Bitcoin payouts) !!!

                                      PHP, MySql, Smarty, CodeIgniter, Laravel, WordPress, NATS... fixing stuff, server migrations & optimizations... My ICQ: 27429884 | Email:

                                      Comment

                                      • vdbucks
                                        Monger Cash
                                        • Jul 2010
                                        • 2773

                                        #20
                                        Originally posted by HomerSimpson
                                        the stats are week old.
                                        check the dates on them

                                        go to ssh and run
                                        service mrtg restart

                                        hit me up if you need any help
                                        http://www.awmzone.com/services
                                        The stats are within 24 hours from when the initial post was made ><

                                        Comment

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