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> My web server's response time for http requests skyrockets every |
| 2 |
> weekday between about 9am and 5pm. I've gone over my munin graphs and |
| 3 |
> the only one that really correlates well with the slowdown is "TCP |
| 4 |
> Queuing". It looks like I normally have about 400 packets per second |
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> graphed as "direct copy from queue" in munin throughout the day, but 2 |
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> to 3.5 times that many are periodically graphed during work hours. I |
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> don't see the same pattern at all from the graph of all traffic on my |
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> network interface which actually peaks over the weekend. TCP Queuing |
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> doesn't rise above 400 packets per second all weekend. This is |
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> consistent week after week. |
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> |
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> My two employees come into work during the hours in question, and they |
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> certainly make frequent requests of the web server while at work, but |
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> if their volume of requests were the cause of the problem then that |
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> would be reflected in the graph of web server requests but it is not. |
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> I do run a small MTU on the systems at work due to the config of the |
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> modem/router we have there. |
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> |
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> Is this a recognizable problem to anyone? |
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I'm in the midst of this. Are there certain attacks I should check for? |
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- Grant |
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