I'm looking into getting battery backup unit to protect my Ubuntu server. How can I find out if it is compatible with Ubuntu (11.04)?
Ideally I'd like to be able to tell the server when there is a power outage so the server can shutdown. I know most of them come with software that works with Windows, but haven't seen any that mention Linux or Ubuntu.
Are there any good resources for setting up UPS's with Ubuntu? Any recommendations?
I want to update my sources.list file with the fastest server from the command line in a fresh Ubuntu Server install. I know this is trivially easy with the GUI, but there doesn't seem to be a simple way to do it from from the command line?
I'd like to ensure that transmission only sends/receives traffic when the server it runs on is connected to a VPN.
I found this question which is similar but I don't want to force all traffic through the VPN and I haven't been able to find a good guide on how to use firestarter from the command line.
Instead I was thinking of using ufw, but I have little to no experience with firewalls, and I'm hoping the community can help me out.
One idea I had would be to force transmission to use a specific port, say 33442, and then only allow traffic to and from that port from the IP address of the VPN server. I checked out the Ubuntu server guide and I think could do something like this:
sudo ufw enable
sudo ufw deny port tcp from localhost to any port 33442
sudo ufa allow port tcp from localhost to VPNIP port 33442
sudo ufw deny port udp from localhost to any port 33442
sudo ufa allow port udp from localhost to VPNIP port 33442
Does this logic hold its salt? How would you do it? What would I use for VPNIP, the public IP of the VPN server, or should I specify the local subnet range that the VPN connects me to?
Thanks for your help!
I'd like to configure my headless Ubuntu server (64bit) to download and seed torrent files. I'm looking for an application with the following requirements (in order of importance):
I've been looking at these forums and it seems rtorrent, deluge, and transmission are the most popular and all three seem to support the above. Is this correct?
What about the alpha version of the utorrent?
Any general tips about diving into this?
Thanks for your input!
I have two executable files I downloaded and am trying to add to the path. They are located in
/home/user/folder
and the specific files are
/home/user/folder/app1
/home/user/folder/app2
Both app1 and app2 have the executable flag set to all (user, group, other).
I can execute the files if I am in /home/user/folder and I execute these commands
./app1
./app2
However I can't run them from elsewhere. I added this line to my .profile
PATH="$PATH:/home/user/folder"
and then sourced the path with
. /home/user/.profile
and I can see app1 and app2 when I use command completion (pressing tab). However here is what happens when I try to run app1 or app2 with the following commands (the following only shows 'app1' but the same is true of 'app2')
user@comp:~$ app1
-bash: app1: command not found
user@comp:~$ /home/user/folder/app1
-bash: app1: command not found
user@comp:~/folder$ ./app1
(program runs)
I'm stumped :), I must have missed something simple. Thanks for your help!!
UPDATE
Ok, I found some errors in the path which I think I fixed, but now it's not running in any case - which for some reason I think is a step forward. Thanks for suggesting the following steps, here is their output:
user@computer:~$ echo $PATH
/usr/share/fsl/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/local/matlab/bin:/usr/local/VoxBo/bin:/usr/local/itt/idl64/bin:/usr/local/afni/bin/:/usr/local/mricron:/usr/lib/voxbo/bin:/home/user/folder:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11/:/usr/games/:/usr/local/matlab/bin:/usr/local/VoxBo/bin/:/usr/local/itt/idl64/bin:/usr/local/afni/bin/:/usr/local/mricron/
user@computer:~$ typeset -p PATH
declare -x PATH="/usr/share/fsl/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/local/matlab/bin:/usr/local/VoxBo/bin:/usr/local/itt/idl64/bin:/usr/local/afni/bin/:/usr/local/mricron:/usr/lib/voxbo/bin:/home/user/folder:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11/:/usr/games/:/usr/local/matlab/bin:/usr/local/VoxBo/bin/:/usr/local/itt/idl64/bin:/usr/local/afni/bin/:/usr/local/mricron/"
user@computer:~$ type app1
app1 is /home/user/folder/app1
user@computer:~$ type app2
app2 is /home/user/folder/app2
user@computer:~$ app1
bash: /home/user/folder/app1: No such file or directory
user@computer:~$ app2
bash: /home/user/folder/app2: No such file or directory
user@computer:~$ /home/user/folder/app1
bash: /home/user/folder/app1: No such file or directory
user@computer:~$ /home/user/folder/app2
bash: /home/user/folder/app2: No such file or directory
user@computer:~$ cd /home/user/folder
user@computer:~/folder$ app1
bash: /home/user/folder/app1: No such file or directory
user@computer:~/folder$ ./app1
bash: ./app1: No such file or directory
user@computer:~/folder$ ./app2
bash: ./app2: No such file or directory
user@computer:~/folder$ ls -l
total 29384
-rwxr-xr-x 1 user user 14949776 2011-02-03 11:09 app1
-rwxr-xr-x 1 user user 15137300 2011-02-03 11:10 app2
user@computer:~/folder$
Thanks for everyone's input!
I have an Ubuntu server in my apartment and I just got a printer, so it's time to share!
In the past I've used CUPS on my Desktop and I'd just point the browsers to localhost:631 to set things up. Can I used the web based admin tools remotely?
I've been playing with the /etc/cups/cupsd.conf file and am currently at the point where I can direct a browser on my LAN to server-ip:631 but I'm getting the 403 Forbidden error.
If it's not possible or it's a bad idea for security reasons to allow remote administrator of CUPS, would it be possible to accomplish this using an SSH tunnel to the sever?
I'd like to run the following incomplete script weekly in as a cron job to backup my home directory to an external drive mounted as /mnt/backups
#!/bin/bash
#
TIMEDATE=$(date +%b-%d-%Y-%k:%M)
LASTBACKUP=pathToDirWithLastBackup
rsync -avr --numeric-ids --link-dest=$LASTBACKUP /home/myfiles /mnt/backups/myfiles$TIMEDATE
My first question is how do I correctly set LASTBACKUP to the the the directory in /backs most recently created?
Secondly, I'm under the impression that using --link-desk will mean that files in previous backups will not will not copied in later backups if they still exist but will rather symbolically link back to the originally copied files? However, I don't want to retain old files forever. What would be the best way to remove all the backups before a certain date without losing files that may think linked in those backups by currents backups? Basically I'm looking to merge all the files before a certain date to a certain date if that makes more sense than the way I initially framed the question :). Can --link-dest create hard links, and if so, just deleting previous directories wouldn't actually remove linked file?
Finally I'd like to add a line to my script that compresses each newly created backup folder (/mnt/backups/myfiles$TIMEDATE). Based on reading this question, I was wondering if I could just use this line
gzip --rsyncable /backups/myfiles$TIMEDATE
after I run rsync so that sequential rsync --link-dest executions would find already copied and compressed files?
I know that's a lot, so many thanks in advance for your help!!
I'd like to install libpam-ldap to use ldap on a client machine and I was hoping to use
sudo apt-get install -qq libpam-ldap
to quietly install the package as part of a bash script used to configure a client once Ubuntu installs. However it still comes up with a blue screen GUI asking for configuration information. Since I intend to just copy an existing /etc/ldap.conf file to overwrite the auto generated one I'd like to skip that step but don't know how.
How do you install a package and make it skip its interactive configuration stage?
I have an old Ubuntu LAMP server. I'd like to move the webpage over to a newer Ubuntu server and I'm wondering what the easiest way to backup and restore the webpage would be? Or just the easiest way to transfer the settings to a new server.
The first idea that came to my mind was just to set up a new LAMP server and then recreate the database, import the data,... but there must be a better way, right? :)
Thanks for your help!!
After searching this site, and reading the Ubuntu community documentation, I've decided to use a simple tar command such as
sudo tar -cvpzf serverbackupMMDDYYYY.tgz --exclude=/proc --exclude=/lost+found --exclude=/mnt --exclude=/sys --exclude=/media --exclude=/backups --exclude=/boot --exclude=/dev --exclude=/home -exclude=/tmp --exclude=serverbackupMMDDYYYY.tgz /
To backup my system. While researching how to backup my system it seemed some people recommended excluding /dev (as I'm doing above) and others warned that there could be problems doing that (but they didn't elaborate).
What are the pros and cons of including or excluding /dev in a backup?
I tested a full backup/restore and didn't run into any problems excluding /dev myself, but I also think I took more steps than necessary to restore. After inserting a non broken hard drive I reinstalled Ubuntu and then extracted the backup over the fresh install.
I'm running a 10.04 server at home. Is it possible to install the new Ubuntu font used in the 10.10 Desktop versions on my server and configure it so the console uses it when I hook up a monitor to it while I'm working on it (for when SSH isn't working)?
Thanks for your help!!