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    Re: Howto: set up a mail server in Ubuntu

    OK. I am in the home stretch, I think. Disabling the firewall with iptables -F allowed my webserver to work, and I was able to send email from Thunderbird on both my local Windows machine and from...
  2. [ubuntu] Can't connect to Ubuntu machine from outside

    Hello,

    I just installed Ubuntu 11.10 on my computer, to replace a Ubuntu 9.x installation that became corrupted during an upgrade.

    I have installed a mail server using the howto at...
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    Re: Howto: set up a mail server in Ubuntu

    Further information - I can get Thunderbird to connect to the servers using 127.0.0.1, but it keeps telling me my email password is invalid.

    From looking at log activity, I think the system is...
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    Re: Howto: set up a mail server in Ubuntu

    In case it helps:


    root@ckuecker:/home/chuck# ifconfig
    eth0 Link encap:Ethernet HWaddr 00:18:4d:71:ad:69
    inet addr:192.168.0.200 Bcast:192.168.0.255 Mask:255.255.255.0
    ...
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    Re: Howto: set up a mail server in Ubuntu

    Reloaded Ubuntu from scratch and went through the install again. Everything works properly from localhost, but I cannot access anything from outside the Linux machine.

    I installed gufw and turned...
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    Re: Howto: set up a mail server in Ubuntu

    Found one problem - my bind9 config files had some comments in them that were being interpreted as errors. Bind9 is working now.

    I can access my website on 127.0.0.1, but still not from outside.
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    Re: Howto: set up a mail server in Ubuntu

    Hello,

    First, thanks for the thorough howto. It really helps to see examples of how to do things.

    I used this howto to install a mail server on my Ubuntu 11.10 system. I had a working system...
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    [ubuntu] Re: Synaptic Package Manager broken!

    Further info - 'sudo' has stopped working, and I can't get access to Firestarter. Also, I am losing incoming emails, thought I was able to regain this by restarting the computer twice yesterday.
    ...
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    [ubuntu] Synaptic Package Manager broken!

    Hello,

    I just tried to start Synaptic Package manager to remove a package that is not working for me, so I could attempt reinstalling it.

    When I choose "Synaptic Package Manager' from the...
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    [ubuntu] Re: Lost incoming email and web server!

    Never mind - it was my router firewall. I was trying to allow outside access to anotehr computer on my network, and inadvertently broke it.

    All better.
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    [ubuntu] Lost incoming email and web server!

    Somehow, I have broken my email receive and my web server. Postfix, dovecot, and apache2 are all running. I can send emails. If I try to access the web server via the local server's IP, I can see my...
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    [ubuntu] Re: Weird DNS problem

    May have found the solution. Network Solutions had their master file pointing to IP address 66.245.194.29. They are fixing it now.
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    [ubuntu] Weird DNS problem

    Hello,

    I've lost my web server and email server. Both are running and I haven't changed anything in them (that I know of!).

    I have a static IP running into a router setup to forward HTTP port...
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    [ubuntu] Re: Losing terminal and other window text

    :p

    Well, that seems to have fixed the major lockup problem. I removed all of the screen saver packages, and the preferences selection is now gone. The machine has been running for over an hour...
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    [ubuntu] Re: Losing terminal and other window text

    Just accessing the screen saver screen causes the lockup. Getting closer.

    Next, I'm going to try removing the package with the old screen saver - without touching the screen saver preferences...
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    [ubuntu] Re: Losing terminal and other window text

    OK. This morning, after running the RAM test overnight, and seeing no problems, I restored the system and restarted it, to retrieve some of my emails.

    I got a few dozen emails out of the Ubuntu...
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    [ubuntu] Re: Losing terminal and other window text

    Again!

    I tried to look at the logs - got 'Could not launch Log File Viewer Failed to execute child process "gnome-system-log" (No such file or directory)"

    All the icons on the desktop went...
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    [ubuntu] Re: Losing terminal and other window text

    Well, whatever the problem, it's getting worse. I restart the machine, run fsck to recover from the hard shutdown, and it runs for ten or fifteen minutes before something ties up.

    Log files show...
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    [ubuntu] Re: Losing terminal and other window text

    Control-printscreen does not work. sudo reboot from the terminal returns "sudo: reboot: command not found"

    It amazes me that Firefox is still working right.

    Killing power right after this - yet...
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    [ubuntu] Re: Losing terminal and other window text

    Further information - I found the main hard drive cable was intermittent. Replaced it.

    I still have instances of weirdness with the display - I just opened the log file viewer window, and it's...
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    [ubuntu] Re: Losing terminal and other window text

    CPU temperature is running around 10 C above ambient in my shop - right now, it's sitting at 28 C.

    When I run 'sensors' in the terminal, I see peak temps of 142.6 C. Artifact of just installing...
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    [ubuntu] Re: Losing terminal and other window text

    One other possible clue - when this happens, I lose my email server. That symptom has been popping up every few days - I have to restart postfix and dovecot to get the server back up.

    Does this...
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    [ubuntu] Losing terminal and other window text

    Hello,

    I don't quite know how to put this problem - recently, my installation has started losing the text in terminal and other windows. I will open a terminal window, and there's nothing there -...
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    [ubuntu] Re: How do I save a script's output?

    Thanks. Just ordered a copy.

    Chuck
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    [ubuntu] Re: How do I save a script's output?

    Thanks - those helped a lot. I've got the clues I need, now. :D

    Perhaps a dumb question, but where can I look to learn all these neat tricks? I've got a couple of Linux books, but none seem to...
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