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• Ubuntu server loses network connection after ADSL2+ modem reset

  - by squashbuff

  I am using an ubuntu 10.04 server (running on a Lenovo Thinkpad notebook) as my webserver. It is performing well in terms of handling the traffic etc. However my internet connection is ADSL2+ (using Thomson TG782T modem-router) and if the modem is reset, then my server loses network connection. The networkmanager icon shows a red exclamation mark showing that is has no connection. But as soon as I click on it and tell it to connect to eth0, the connection is back on. It must be something that networkmanager is failing to do and because of this, the reliability of my webserver is suffering. Any advice on how this can be fixed?

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• How to set default permissions for automounted FAT drives in Ubuntu

  - by piman

  I've got many FAT32 drives that I'd like to mount in Ubuntu such that they have permission mode 700 for directories and 600 for all other files. By default, they have 755 for all files, which is not particularly useful since almost no non-directories should be executable, and it screws up version control repos hosted on the drives. "Back in the day" I would have had the drives listed in /etc/fstab with the umask/dmask I want and there was no such thing as a default. These days, drives automount under their volume names. Which is great, except now I have no idea how to set the default. I have tried changing the /system/storage/default_options/vfat/mount_options gconf key with no apparently effect. It was 077 initially but the mounted drive reflected a default of 022; changing it and re-inserting the drives resulted in the files still having permission bits of 755.

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• Ubuntu Chromium bookmark icons blank

  - by Matt Parkins

  Ever so often I load Chromium and it refuses to load my profile. Now that doesn't happen any more but since then it refuses to load the icons for my bookmarks which, if you look at the attached pic, is my only way of identifying which icons do what (other than hover for tool-tip, or actually pressing the icon button). The other possible variable is that the bookmarks are meant to sync with Google sync - I'm not sure if that is a factor. How do I restore the icons to my bookmark bar? Chromium version: Version 20.0.1132.47 Ubuntu 12.04 (144678)

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• Ubuntu 10.04 User Interface errors

  - by user306668

  Hi Guys Using Ubuntu 10.04 Beta on a Sony Vaio laptop (slightly old PCG-4n7M). It was working wonderfully until this morning. After updating and upgrading the login screen images gave broken image icons, then on logging in UI was replaced with just the cmd shell. All menus are gone. I have tried to reconfigure xserver-xorg and that doesn't work. Reinstalling doesn't either. I have tried a number of other attempts. What is weird is that I can launch graphical applications from the cmd line. such as firefox or google-chrome. and they work but the UI is simplified or broken (no resizing, closing, minimizing). I am a bit lost on how to fix this error. If anyone has any suggestions, please let me know

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• Solution to Manage and Monitor (Ubuntu) Machines

  - by Elmar Weber

  I'm looking for a tool like Canonical (system management and monitoring for Ubuntu) that is Open Source and free. The goal is to manage a dozen or so KVM machines for private testing purposes. I know of puppet and munin or RHQ as separate tools to manage and monitor, but I'd prefer something integrated. Any tips? Basic requirements would be: system package management and update (individual selection for each managed node) configuration of basic system services (Users, NFS, cron, ideally also Apache) monitoring (charting of system resources, disk, io, memory, etc) and alerting, ideally a default configuration with sensible values for alerts

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• Unknown/unsupported storage engine: InnoDB | Mysql Ubuntu

  - by Kayle

  I recently upgraded from the previous LTS Ubuntu to Precise and now mysql refuses to start. It complains of the following when I attempt to start it: ?$ sudo service mysql restart stop: Unknown instance: start: Job failed to start And this shows in "/var/log/mysql/error.log": 120415 23:01:09 [Note] Plugin 'InnoDB' is disabled. 120415 23:01:09 [Note] Plugin 'FEDERATED' is disabled. 120415 23:01:09 [ERROR] Unknown/unsupported storage engine: InnoDB 120415 23:01:09 [ERROR] Aborting 120415 23:01:09 [Note] /usr/sbin/mysqld: Shutdown complete I've checked permissions on all the mysql directories to make sure it had ownership and I also renamed the previou ib_logs so that it could remake them. I'm just getting no where with this issue right now, after looking at google results for 2 hours.

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• Can't add Samba users in Ubuntu

  - by petersohn

  I am using (K)Ubuntu 10.10, and I'm trying to set up Samba shares. When I try to add a Samba user in the KDE samba configuration, exit the configuration dialog, then enter it again, I see that the user is not added. Then I tried it using the command line (running as root): smbpasswd -a peet 'peet' is my normal user name. It asks for a password, then does something on my hard drive, but I can see no password file created in /etc/samba, and neither does the date of my smb.conf file change. I also don't see the samba user when I open the samba configuration dialog.

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• Running out of LowMem with Ubuntu PAE Kernel and 32GB of RAM

  - by magneticMonster

  I'm running a Java data import process on a 32-bit Ubuntu 10 PAE kernel machine. After running the process for a while, the oom-killer zaps my Java process. After some Googling and digging through docs, it looks like the system is running out of LowMem. I started the process for the third time and am watching free -lm show me Low: 464 386 77 with the free value (77MB) slowly decreasing. Why am I running out of lowmem and how do I increase it? Some details: $ cat /proc/sys/vm/lowmem_reserve_ratio 256 256 32 $ free -lm total used free shared buffers cached Mem: 32086 24611 7475 0 0 24012 Low: 464 407 57 High: 31621 24204 7417 -/+ buffers/cache: 598 31487 Swap: 2047 0 2047

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• Ubuntu hangs on boot when NFS-mounting entries in /etc/fstab, but they mount cleanly otherwise

  - by lorin

  I'm managing several Ubuntu 9.10 servers that NFS mount several folders (including /home). I'd like these folders to be mounted at boot time. I would like to have several entries in my /etc/fstab to accomplish this, e.g. 192.168.1.100:/home /home nfs rw 0 0 192.168.1.100:/usr/ansys_inc /ansys_inc nfs ro 0 0 Unfortunately, with this configuration, the servers usually (although not always) hang during the bootup sequence when trying to do the NFS mount. if I comment out these fstab entries, reboot the machine, uncomment them and mount them manually using the shell, the folders mount cleanly. I'm not sure how to go about debugging this problem. It seems like it has something to do with the boot sequence, that some relevant process hasn't been started by the time the OS tries to mount the folders.

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• LUKS-Encrypted Root Partition in Ubuntu 9.04

  - by Martindale

  I have a LUKS-encrypted root partition that I have installed Ubuntu 9.04 to. I have of course placed /boot on a separate ext2 partition, and my boot loader loads and functions correctly. However, I can't seem to get my initrd to load the LUKS-encrypted root using the appropriate /dev/mapper/ address. What hooks and scripts do I need to add to get this to function correctly, and what is the correct way to regenerate my initrd? I can CHROOT into this install, and everything works fine - but I just can't seem to get it to actually boot. Help!

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• Passenger package not found after adding phusion repo Ubuntu 12.04

  - by speshak

  I'm trying to install the official Passenger (and Nginx) packages from Phusion on an Ubuntu 12.04.3 server. I have the following in /etc/apt/sources.list.d/passenger: deb https://oss-binaries.phusionpassenger.com/apt/passenger precise main Even after running apt-get update there is no passenger package found by apt. I did verify that the package info appears in /var/lib/apt/lists/oss-binaries.phusionpassenger.com_apt_passenger_dists_precise_main_binary-amd64_Packages but at this point I'm at a loss as to why the package isn't available via apt-get. There are some packages (libapache2-mod-passenger, passenger-docs) that are available. These packages seem to also exist in universe, but apt-cache show lists both locations.

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• Daemons did not start automatically ubuntu 10.04

  - by Anton Prokofiev

  Hello, All! I have a strange behavior on Ubuntu 10.4: few daemons (apache2 and postgresql (8.4SS from enterpriseDB) did not start automatically. Funny things that time-to-to they do. (If I just restart my computer everything looks ok, but if I turn it off for the night, nothing work..., so I have to start them manually) I've googled this problem a little bit, but the only answer I have found was to run: sudo update-rc.d apache2 defaults I've called it but the answer was: System start/stop links for /etc/init.d/apache2 already exist. Any Ideas?

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• Still no external sound after installing ubuntu 10.04

  - by Walter

  As suggested I upgraded. Same as before except now not even the speaker control in the application bar. Please help. Background: I have Ubuntu 9.10. Headphones appear to work fine. External speakers - nothing. There are so many sound preferences I have no idea what or which combination. Went to terminal and ran alsamixer which seems to recognize my sound card, though the driver is not listed in System Administration Hardware Drivers; the only driver listed is my graphics card. Setup: I have a Dell 8250. Speakers are plugged into the SB live card. Woofer and 2 speakers using transformer.

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• Create a wireless Network in Ubuntu 10.04?

  - by Vinaychalluru

  Hello., Whenever i need to copy some files and couldnt find a pen drive, [ i dont have bluetooth enabled in my lap], I create a new ad hoc (wireless) network in windows and share the necessary files on the network and share files with the other system. Now, i want to do the same with Ubuntu. But, i couldn't. I could create a new network, but i am not able to chare or send or even dont know how to access the system connected to the network. So, how can i do this? Thanks

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• Map ftp servers as network drives in Ubuntu Linux

  - by Carl

  Hi everybody! I'm a new Linux user, just switched over from Windows. I've got a couple FTP servers I connect to on a regular basis through sftp. I was wondering if there was a way to, as we say in windows, map them as network drives in Linux, so I can just copy stuff into a drive or folder and it will just map it to the server by ftp. That would be pretty cool. Anybody know how this would be possible, and how to do it? I Can't see to find anything in the literature. I'm running Ubuntu 9.04. Thanks!

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• Ubuntu based VPN server behind NAT router?

  - by maartenn88

  I have a small intranet- and file-server inside our company, which can only be reached from inside our own network. I'd like to be able to reach the intranet and files on the server from outside the network, however I don't really like the idea of completely opening security by forwarding the ports on our NAT-router, so I'd prefer to enable a VPN possibility for this. So I have a router, which is the DHCP server and has NAT function, and I have an Ubuntu Server with the files and intranet on it. How do I configure these two so that I can make a VPN connection with my network in order to reach the server? thanks in advance for any answer!

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• SugarCRM CE Won't Install on Ubuntu 10.10

  - by Trenton Scott

  I have a fresh copy of Ubuntu 10.10 server with a working LAMP installation. I downloaded SugarCRM and browsed to its directory to open the installer (via Firefox). The installer appears fine, I accept the license agreement, and it proceeds to check file permissions. It advises that several directories need looser permissions (chmod 766), and I adjust them accordingly. After making the changes, I click "recheck" and the page just reloads as blank (white). There are no errors visible, nothing in the server logs (Apache/PHP) and installation cannot continue. I'm able to get back to the installation tool by readjusting permissions back to my default (0755 for directories, 0644 for files). All files/folders are owned by root and the www-data group. Any idea about what's wrong?

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• My ubuntu server is losing connectivity, require assistance troubleshooting

  - by Coderama

  I have two server monitoring tools that check the uptime of my Ubuntu 10.04.1 LTS server. Over the last month both of these tools have reported the following outages: Jan - 15mins: self recovery Jan - 5 mins: self recovery Feb - 15mins: I managed to be online when this happened and logged into my control panel to find that my server was shutdown. I manually restarted it only because I was online. I wonder if it would have restarted? I have contacted my VPS provider (webbynode) who could not see any any problems with their VPS infrastructure for the February outage. I have also checked the following log files to see if there are any anomalies that could be the cause of the outages; I am unable to see anything related to the server shutdown (Feb) in these logs: /var/log/auth.log /var/log/apache2/error.log /var/log/syslog /var/log/kern.log /var/log/boot /var/log/messages Could anyone suggest any other things I should look out for, such as additional system logs? I just added bootlogging through /etc/default/bootlogd

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• Ubuntu 11.04: No Audio Output

  - by Jason George

  I installed a fresh copy of Ubuntu 11.04 earlier this week and I'm having trouble getting my audio online. It was working fine in 10.04 and all the resources I can find on troubleshooting seem to be fairly dated so I'm not sure if they apply. CMI8788 [Oxygen HD Audio] Analog Stereo Duplex Playing a WMA file shows 0.00db output when I mouse over the sound controller in the status bar. Obviously, no output from my speakers. I tried adjusting the profile, thinking I might have the wrong one. That seems to have made things worse. Where mouse over originally said something along the lines of "Oxygen HD Audio," it now reads "Dummy Output." Selecting "Test Speakers" in sound preferences crashes the dialog. Any pointers would be great.

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• Protect individual sites on Ubuntu/Apache server

  - by Christoffer

  Hi,?? I need to set up a Apache server configuration for some client sites that run under the same Ubuntu 9.10 machine. All sites are allowed to run PHP, Python and Ruby on Rails. I do not control the source code of these sites and so I need to set up a filter in order to prevent one user to reach files on another users account.?? If I run a script to list files in "/" from one account, I can browse some files and directories in the actual server root. I want to set the root for each account to /var/usersite.com/www/ instead so that listing files in "/" shows the files in the client's root. ??How is this most easily configured??? Cheers!? /Christoffer

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• Installing Ubuntu next to Windows XP

  - by jess

  I have iso image for Ubuntu 11.0.4 on a CD. My OS is windows XP. I have 3 partions c, E and F. Windows is installed on C, and F has data. E is empty drive. Now, after I start installation , I choose the third option. Then click forward and I am shown three figures -- /dev/sda1 52427(total)/50931(used) /dev/sda5 52427(total)/3221(used) -- surprised, since it should be empty. I had used wubi to install earlier but have uninstalled. /dev/sda5 215206(total)/37545(used) Now, it means I need to choose sda5. Now how should I go about creating 3 partions for /(root), /home and /swap. Click edit partion and give size for each of them?

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• EC2 hostname ubuntu and ejabberd

  - by aelbaz

  I have questions related to the host name in Ubuntu EC2 instances. I have a IPS elastics for hosts that want to be seen from the internet and I have pointed out in the DNS entries with the computer name to those ips. For example, for elastic IP 11.11.11.11 DNS I added my computer name www.example.com. But I also want to rename the machines which they have, because it is a parameter of the service running on them (ejabberd server). EC2 instances are restarted when changing the host name, and seen on the client requesting dhcp hostname to dhcp Amazon. My question is ... What is the safest method to change the hostname: dhcp client modify, insert the command in rc.local, etc. ..? Could I have a problem with the internal resolution of traffic between EC2 instances? thanks

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• Configuring Bind9 on ubuntu

  - by Jerry

  I am trying to configure name server on Ubuntu just for learning. I have followed this tutorial. After configuring bind9 I have restarted it and works well. I have no registered domain name and public IP, so I have used a random domain name(khalidiitdu.com) that is not registered. When I dig khalidiitdu.com, it shows status: NXDOMAIN. If I use nslookup command, it shows ** server can't find khalidiitdu.com: NXDOMAIN. Now question is: Is registered domain mandatory to configure bind9 within a LAN? If not please suggest me alternative ways. Thanks.....

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• Install ubuntu on MacBook Pro

  - by n179911

  Hi, Can you please tell me what is the preferred way to install Ubuntu on MacBook Pro? I have a MacBook Pro with MacOSX 10.5. I need a Linux environment some times. So what is the best way to achieve that? 1. Make it dual boot? (but I don't know if that is possible with MacBook) 2. Install Virtual Box and then put Ununtu on top of it? (But I am not sure if this configuration will be slow, so I need a Linux environment for coding, so it needs to do compiling and debugging and stuff). Thank you for any tips.

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• Install additional PHP version in different folder on Ubuntu 8.04

  - by chessweb

  Hi, I'm on a Host Europe VPS running Ubuntu 8.04 server. PHP version is 5.2.4. Now there is an application (Moodle 2.0) that needs at least PHP 5.2.8. I don't want to upgrade serverwide to PHP 5.2.8 because that might impair other applications (e.g. Plesk). The FAQ at Host Europe suggest to install an additional PHP 5.2.8 in /opt/php and I think I can handle that with $ dpkg -i php_..._.deb --root /opt/php (Is that correct, by the way?) However, how do I point Apache to the new PHP installation? Thanks for any advice, Ralf

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