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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...

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...

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...

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
...

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...

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.

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...

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.
...

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...

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.

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...

May have found the solution. Network Solutions had their master file pointing to IP address 66.245.194.29. They are fixing it now.

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...

: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...

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...

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...

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...

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...

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...

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...

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...

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...

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 -...

Thanks. Just ordered a copy.

Chuck

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...