Can't download updates to my Linux server

  • vahost

    (@vahost)


    7 years, 8 months ago

    There appears to be some kind of a connection issue between wordpress.org and my server at 66.23.228.87. When my admins or I try to do a wget http://wordpress.org/latest.tar.gz, it downloads about 18%-24%, then stops.

    Occasionally, we are able to get a complete download, but most of the time it fails.

    We turned off our firewall to eliminate it as a potential cause, and the download still fails.

    I checked with our data center, and they couldn’t find anything wrong either.

    Is it possible that there’s something going on at wordpress.org, perhaps a firewall throttle of some kind, that is preventing us from downloading updates?

    We have a couple of dozen WordPress websites on the server, so it’s an important issue for us to resolve.

Viewing 2 replies - 1 through 2 (of 2 total)
  • Thread Starter vahost

    (@vahost)

    7 years, 8 months ago

    More information:

    1. It only happens with downloads from wordpress.org. With other sites, there’s no issue
    2. I disabled my ConfigServer firewall in order to rule it out as a culprit. The downloads still fail.
    3. My server admins have gone over the server with a fine-toothed comb, but they can’t find anything wrong.
    4. They reinstalled the web server, which helped briefly for one download, but then it began to fail again.
    5. We contacted cpanel about it, but they couldn’t find anything that cpanel might contribute to it. The confirmed that it’s only happening with downloads from wordpress.org
    6. My hosting company’s data center can’t find anything wrong. They claim that other server’s are able to download from wordpress.org just fine. The confirm that the issue is only related to wordpress.org.
    7. I’m running out of ideas to test.
    Thread Starter vahost

    (@vahost)

    7 years, 8 months ago

    Here is what cpanel reported back:

    “I am afraid I am unable to identify anything with cPanel’s software that would be causing this. I did some testing and I found that this appears to be isolated to wordpress.org. For example, in this case I downloaded 50 MB of test data without issue:

    ===================
    # wget http://download.thinkbroadband.com/50MB.zip
    –2016-08-29 09:44:17– http://download.thinkbroadband.com/50MB.zip
    Resolving download.thinkbroadband.com (download.thinkbroadband.com)… 80.249.99.148, 2a02:68:1:7::1
    Connecting to download.thinkbroadband.com (download.thinkbroadband.com)|80.249.99.148|:80… connected.
    HTTP request sent, awaiting response… 200 OK
    Length: 52428800 (50M) [application/zip]
    Saving to: ‘50MB.zip’

    100%[============================================================>] 52,428,800 6.89MB/s in 18s

    2016-08-29 09:44:36 (2.76 MB/s) – ‘50MB.zip’ saved [52428800/52428800]
    ===================

    I did a tcpdump while trying to download from wordpress.org and I confirmed that the network packets simply stopped coming form wordpress.org at a certain point. This suggests that something in the network connection between the servers is filtering/throttling this download, and what ever it is it is specific to wordpress.org. I see nothing on the server to suggest this is happening locally, and I get the same results with other commands, such as “curl.”

    I would recommend continuing this investigation on your local network to make sure that there isn’t a network firewall or filtering service causing this issue. Please let us know if you have further questions.
    ”

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