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  • I installed a website on a brand install installation of Ubuntu 14.04 (opposed to an upgrade from earlier versions) and the same website would not start...

    Apache2 would give me the following error:

    client denied by server configuration

    which did not seem to tell me anything... I search for the error and the first page that popped up was a page by Apache2 and they said to add the deny/allow trick. I tried that and it did not help.

        <Directory /my/special/directory>
            Order allow,deny
            Allow from all
        </Directory>

    Search further, I found an answer on ...

  • Error about a local certificate?!

    The other day, I got a new certificate from godaddy.com. I installed the certificate by replacing the files and simply restarting Apache. I then checked in Sea Monkey and it worked great. Checking the certificate it told me "valid for another 3 years."

    A few days later I got an error from eFax saying that our certificate could not be verified. Weird... I tried with wget and got the error! Hmmm... I tried again with SeaMonkey, just fine. Then I tried with FireFox, error too! The error with wget is like this:

    ERROR: Certificate verification ...
  • Today we again ran in an out of memory error. As we are adding more websites our foot print is growing... Our servers use a VPS that has limited resources and whenever the limit is reached, the system automatically kills processes. How the VPS selects the process to kill isn't clear to me, but twice it has been our database manager meaning that all of a sudden all the websites stop working.

    So... We got an extra bit of RAM because our package allowed it, but that's still small.

  • Today I got an error about an .htaccess file that Apache2 could not load.

       pcfg_openfile: unable to check htaccess file, ensure it is readable
    

    I looked like 10 times in that folder to make sure the .htaccess was fine, which meant looking that there wasn't an actual .htaccess file there!

    The fact is not exactly that the file cannot be opened, it has more to do with the parent folder accessibility. Somehow Apache2 does not check the parent folder accessibility and prints the error since, indeed, it gets an error other than the usual "File Not Found". (It's getting the ...

  • I work with Apache a lot. It is a really good web server that has many options and features. Unfortunately, maybe it has too many of them!

    I ran in a problem where a notification from one server to another would fail with the following error:

    [Fri Oct 11 19:43:50 2013] [error] [client 162.226.130.121] client denied by server configuration: <path to file>
    

    Looking at the error, I was first thinking that my script was generating the error. The fact is that my script does not generate error 403. It has a 400 and 500 but not 403.

    So looking at the error I thought, maybe that's an ...

  • I am working on an A/V switch with the kids and was annoyed by the fact that the page talking about how to do that did not include anything like a schema (it has some bus drawing... who cares?!) This being said, the concept is perfect and works just fine. It's just hard for me to see that when the person just says connect this here and that there and voilà!

    Original A/V switch information:

    https://www.engadget.com/2007/03/13/how-to-make-a-solid-state-a-v-switcher/

    The source is a gschem file as created by gEDA Schematic Editor (a free tool you can get on Ubuntu.) Already the free ...

  • My Story

    First of all, if I got this device it is because my two integrated NIC Card on my P55A-UD4P died. One of them does not even light up. Completely dead! When connected to my modem, the light on the modem doesn't come up either. Weird! That's the first NIC that broke on me like this. I plugged my cable in the other NIC, just in case, and the light came up. Hurra? Not really. Ain't working either. It connects, but when trying to send a ping, it goes really fast meaning that the hardware doesn't know what's happening and is most certainly generating a flood of interrupts. Just in

  • Setup your interface for multiple IP addresses

    Today I got a new IP address for a server and I had to assign it to the same NIC as my current IP address.

    So?! How do you do that on a Debian or Ubuntu server?

    It is actually very simple. On Ubuntu you go to /etc/network and edit the interfaces file. It should already include a definition for eth0 (virtual machines will have something else than eth0).

      # The loopback network interface
      auto lo
      iface lo inet loopback
    
      # The primary network interface
      auto eth0
      iface eth0 inet static
            address 192.168.1.1
            ...
  • I just upgraded an Ubuntu server from version 9.10 (Karmic Koala) to 10.04 (Lucid Lynx) and started getting a strange error about some package dependencies being unmet. I'm sure I did not intentionally install those packages, so as I was upgrading, I would imagine that they should have been removed automatically if required.

      # apt-get install <some-module>
      Reading package lists... Done
      Building dependency tree      
      Reading state information... Done
      You might want to run `apt-get -f install' to correct these:
      The following packages have unmet dependencies:
    
    
  • I've been looking around every now and then to try to understand how I could create a server that replies on the correct Ethernet port.

    The idea is simple, we have very powerful servers that can handle many requests, more requests that one Ethernet port can handle. In other words, we could have 2, 3, 4, probably even 10 Ethernet connections (it really depends on your application, of course: how much RAM you need, how much processing is necessary for each access, etc.)

    The solution is to use the ip command line which allows us to add default gateways for each ethernet card based on the ...

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