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Thread: s.uicdn.com

  1. #1
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    Default s.uicdn.com

    This forum might not be the exact right place for this question, but Opensuse is my tribe, so here goes.

    I'm using Opensuse V13.2, Mozilla Firefox, Ghostery, everything updated.

    When I'm browsing the internets and go to new websites, every once in a while Firefox pauses for about 2-3 minutes, and in the lower left corner of the window, transfering data from s.uicdn.com appears.

    I googled it and found several pages about it on "malicious webpage investigation" type sites, which all say it's harmless.

    How do I figure out what is going on with s.uicdn.com?

    This is a noticable change, it wasn't there in the past.

    Is Wireshark an option to observe what is being transferred?
    Regards,

    RIH5342

  2. #2
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    Default Re: s.uicdn.com

    Quote Originally Posted by rih5342 View Post
    This forum might not be the exact right place for this question, but Opensuse is my tribe, so here goes.

    I'm using Opensuse V13.2, Mozilla Firefox, Ghostery, everything updated.

    When I'm browsing the internets and go to new websites, every once in a while Firefox pauses for about 2-3 minutes, and in the lower left corner of the window, transfering data from s.uicdn.com appears.

    I googled it and found several pages about it on "malicious webpage investigation" type sites, which all say it's harmless.

    How do I figure out what is going on with s.uicdn.com?

    This is a noticable change, it wasn't there in the past.

    Is Wireshark an option to observe what is being transferred?
    Hi
    Install the firefox plugin httpfox and use that to see the traffic and data.
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  3. #3
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    Default Re: s.uicdn.com

    On Sun, 01 Feb 2015 14:36:01 +0000, rih5342 wrote:

    > Is Wireshark an option to observe what is being transferred?


    Wireshark is *always* an option, unless you're using https and don't have
    access to the private key for the certificate. Even then, it can be
    useful in diagnosing network issues.

    What it won't tell you is if the server has hung up on something. It can
    only tell you about what's actually on the wire.

    Jim



    --
    Jim Henderson
    openSUSE Forums Administrator
    Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C

  4. #4
    Join Date
    Sep 2008
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    2,997

    Default Re: s.uicdn.com

    it's most likely a content delivery network (the cdn part of it's name)
    other sites you visit store images, video's etc over there and that's why you're seeing loading s.uicdn.com

  5. #5
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    Default Re: s.uicdn.com

    With latest FF, it's now like Chrome and other browsers, you can open "Developer Tools" in the browser to trace traffic without a plugin.

    If it is a content delivery network source, it should still be monitored warily. Anything can be deployed this way (typically common scripts, framework code, multi-media). In theory, if content is delivered this way, it will remain cached and re-usable without re-downloading when another site requires the same objects.

    TSU

  6. #6
    Join Date
    Feb 2010
    Location
    nh,usa
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    Default Re: s.uicdn.com

    I installed HttpFox and found the delays,

    both

    Code:
      http://s.uicdn.com/gmx.com/3.5/min/lib-body-end-final.js
    and

    Code:
      https://fonts.googleapis.com/css?family=Shadows+Into+Light
    require 90 seconds each.

    Now what?
    Regards,

    RIH5342

  7. #7
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    Default Re: s.uicdn.com

    On Wed, 04 Feb 2015 02:56:01 +0000, rih5342 wrote:

    > I installed HttpFox and found the delays,
    >
    > both
    >
    >
    > Code:
    > --------------------
    > http://s.uicdn.com/gmx.com/3.5/min/l...y-end-final.js
    > --------------------
    >
    >
    > and
    >
    >
    > Code:
    > --------------------
    > https://fonts.googleapis.com/css?fam...ows+Into+Light
    > --------------------
    >
    >
    > require 90 seconds each.
    >
    > Now what?


    Sounds like the problem's at the other end, not a lot you can do about
    that unless you know the owners of the sites in question so they can look
    at their logs.

    Jim



    --
    Jim Henderson
    openSUSE Forums Administrator
    Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C

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