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I've been running Apache under Xubuntu for quite a while now. It always used to work fairly well, but every now and then a request would not get through. The ...
  1. 08-16-2009 #1
    HyperHacker
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    Unhappy Apache does not respond

    I've been running Apache under Xubuntu for quite a while now. It always used to work fairly well, but every now and then a request would not get through. The browser would connect, and just sit forever waiting for a reply. Nothing would show up in any logs. After trying everything and seeing no apparent pattern I blamed the ISP.

    So I've moved and now this is happening every single time. Strangely, a few requests are showing up in access.log, but most do not. When I start Apache, it will spawn a single instance of the apache2 process, running as root. Then, 5 more instances spawn, running under www-data, either immediately or when a request is made. Nothing is ever sent back. I can connect with Telnet and make any request or just type random gibberish and get no reply at all, but stay connected forever - in fact I can't even Ctrl+C to disconnect.

    If I access the server through my LAN IP (192.168.x.x) it works fine and responds instantly. Only using my Internet IP (with all appropriate ports forwarded as best I can tell) it will never reply.
    One curiosity I notice is that if I access a page through my LAN IP, then another through the Internet IP, both show up in the access log. Still, the latter never receives a reply. I don't believe this to be a PHP or MySQL problem as it happens even with plain text files or files that don't exist.
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  2. 08-17-2009 #2
    elija
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    Does anything show up in the error log?
    If we hit that bullseye, the rest of the dominoes will fall like a house of cards. Checkmate! (Zapp Brannigan)


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  3. 08-18-2009 #3
    HyperHacker
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    No, as I mentioned:
    Quote Originally Posted by HyperHacker View Post
    Nothing would show up in any logs.
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  4. 08-20-2009 #4
    ajos
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    try installing a new Apache.
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  5. 08-20-2009 #5
    HyperHacker
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    Question

    ...how would I do that exactly?

    I actually tried to access it from work, and it loaded up just fine (though slowly). But I can't get to it from home, nor can other people I give the address to.
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  6. 08-20-2009 #6
    um_nirvani
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    check whether apache is listening on the correct port and check for the requesting IP

    run netstat -alpnt | grep :80

    (80: default port)
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  7. 08-21-2009 #7
    HyperHacker
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    I have it on 55555, and netstat says I would have to be root to see all info, so:
    # netstat -alpnt | grep 55555
    tcp 0 0 0.0.0.0:55555 0.0.0.0:* LISTEN 3893/apache2
    That certainly seems odd.
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