Problem with accessing my server - works for some but not others

Discussion in 'Site & Server Administration' started by bluedot33, Jan 5, 2011.

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  1. #1
    Hello folks,

    I have a very strange problem. Starting a few days ago, my website became not accessible to me. It just times out in all browsers.

    I can PING and TRACERT to the website, but I cannot open the website in any browser - not via IP, not via hostname (so it's not DNS, in fact IP resolves fine to my hostname). It just gets a timeout error.

    Here is the weird thing: I am in Canada, and I cannot web-navigate to my site from either home or work ISP. My friends in USA and in Australia are having the same issue - ping ok, but timeout in browser.

    On the other hand, for a bunch of friends it DOES work in browser.. in usa and canada.... How can this be? It works for some but others get a timeout? All in different ISPs? This has never happened before, website has been running for years.

    I have also used HostTracker to run my site's results, I get about 8 nodes who get the timeout (major nodes in USA like LA), the other 61 are OK


    Any ideas would be great.... really stumped... :(
     
    bluedot33, Jan 5, 2011 IP
  2. madaboutlinux

    madaboutlinux Member

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    #2
    What do the logs say when some aren't able to access the server? Do you see any surge in connections to port 80 when such issue occurs? It could be a DDOS attack as well?
     
    madaboutlinux, Jan 7, 2011 IP
  3. jarrodw

    jarrodw Peon

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    #3
    For the clients that work:
    Possibly a cached page unless the whole site is nocache.

    netstat -tuap | grep 80
    iptables -L
    tail -30 /var/log/< wherever you are storing the apache error and access logs>

    Maybe start there.


    Verify that things are working as expected from the localhost.
    Verify that you are not rate limiting, or the provider is not rate limiting with mod_bw or something similar.


    What is your site?
     
    jarrodw, Jan 7, 2011 IP
  4. in_web

    in_web Peon

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    #4
    Hi

    Tell the situation to your server provider

    if u are managed service then this is there problem to solve

    Thanks
     
    in_web, Jan 8, 2011 IP
  5. atxsurf

    atxsurf Peon

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    #5
    do traceroute (or tracert on windows) to your site from the ISP where it does not work
     
    atxsurf, Jan 9, 2011 IP
  6. jhnbrwn

    jhnbrwn Peon

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    #6
    He is able to ping and tracert.
    It might be specific to your ISP and some of your friends who are connected via same ISP.
    It seems to be a surge in network otherwise if your other friends are able to see then it must be work on your end as well.
    Wait for a couple of hours, it might get back normal.
     
    jhnbrwn, Jan 12, 2011 IP
  7. jhnbrwn

    jhnbrwn Peon

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    #7
    Well he would be able to ping and trace it.
    It might be specific to your ISP and some of your friends who are connected via same ISP.
    It seems to be a surge in network otherwise if your other friends are able to see then it must be work on your end as well.
    Wait for a couple of hours, it might get back normal.
     
    jhnbrwn, May 23, 2011 IP