Ubuntu Servers :: Samba In Large Scale Environment.

Mar 31, 2011

The Linux samba server would be part of the Windows domain.What's the best way to add shares for all of the students, assuming there is 200 students per folder? Is there a way to add a wildcard like $(USER) (that's logged in)//fileserver/ students/classof2011/Bill_Gates? Or would a directory path have to be created for each student?Either way is fine. I'm just curious what the proper protocol is for completing that task.

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Ubuntu Servers :: Performance For Large Scale Website Or Critical Mission?

Aug 6, 2011

anyone of you could share if you have been using ubuntu for large scale website or critical mission project, say for 500.0000 secure transaction per 3 hours with 4 million users accessing server. how does ubuntu perform?

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Ubuntu Servers :: Samba Drops Connection When Transferring Large File

Jul 6, 2011

I'm experiencing connection problem when transferring a large file from Windows 7 (Home Premium) to my Ubuntu 11.04. The transfer starts, but after a couple of seconds the connection drops and all the shares are unavailable. I'm also unable to connect to the server over ssh, and the only thing I can do to restore the connection is to reboot the server. The strange part is that this was never a problem a couple of weeks ago, and I've not done anything to the setup on either machines besides installing security updates.

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Server :: Design An Inexpensive Large Scale DNS Server But Fail To Find Any Metrics Or Methods To Base Scalabilty?

Nov 28, 2010

I'm trying to design an inexpensive large scale DNS server but fail to find any metrics or methods to base scalabilty.Can anyone offer information on building a stable dedicated DNS server? That might be able to scale well.

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Server :: Ubuntu Versus Centos In A Large Web Environment

Mar 8, 2010

I have been a RPM-based distribution guy for a long time (redhat,centos,suse). We have a large shared and dedicated web environment that is starting to require more and more linux. I am in a position to switch gears and move to ubuntu if it makes sense. Things that are important to me are:

1. ease of deployment (both servers and websites themselves)
2. patch management
3. documentation

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Ubuntu Servers :: Best Way To Scale Up Server Set Up?

Sep 1, 2011

what is the best way to scale up server set up for a high growth site? without getting a heart attack, where you can just open up a beer and watch tv as you push a red button to scale the server. lets assume the site is getting 100,000 people a day.And, in thirty days, it will be getting 9 million people a month, and in a few months it will get 9 million people a day. (I know it is a bit crazy)How would you structure a roll out?

two load balancers, two front end app servers, two database servers, and a cdn.And as traffic builds up, you would up the front end app servers, and maybe add two slave database servers? and maybe replicate the servers to east and the west to serve different parts of the world.What kind of hardware? I know it is a bit weird question, and it matters a lot on app, server hardware, server set up, style, class, lifestyle etc - I just want to see if there are any aha moments and awesome set ups that I am not aware of.

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Ubuntu Servers :: Small Scale Online Backup For Ubuntu Server?

Jun 30, 2010

I just finished getting a semi-old desktop computer up and running with ubuntu server edition. It's running subversion and samba for my office of 5 people. I was wondering if there was a simple online/cloud based backup service to automatically back up my subversion repository and samba shares in case of any hardware problems?

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Server :: Large File Transfer Over Scp Or Samba Crashes Wireless Connection?

Feb 3, 2010

I'm setting up a htpc system (Zotac IONITX-F based) based upon a minimal install of ubuntu 9.10, with no GUI other than xbmc. It's connected to my router (d-link dir-615) over a wifi connection configured for static IP (ath9k driver), with the following /etc/network/interfaces:


auto lo
iface lo inet loopback
# The primary network interface
#auto eth0


Network is fine, samba share to the media direction works, until I try to upload a large file to it from my desktop system. Then it downloads a couple of percents at a really nice speed, but then it stalls and the box becomes unpingable (Destination Host Unreachable), even after canceling the transfer, requiring a restart of the network.

Same thing when I scp the file from my desktop system to the htpc, same thing when I ssh into the htpc, and scp the file from there. Occasionally (rarely) the file does pass through, but most of the time the problem repeats itself. Transfer of small text files causes no problems, and the same goes for the fanart downloads done by xbmc. I tried the solution proposed in this thread, and set mtu to 800 in the interfaces file, but the problem persists.

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CentOS 5 :: Setup Dev Environment With Samba?

Mar 11, 2010

I have setup samba and shared /var/www/html on a shared folder so that i can access the folder directly via my IDE, however i cannor write file in there, is there any better way of doing it ?

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Fedora Servers :: Samba Messages In Syslog - Allow Logging To The Standard Samba Logfiles

Mar 18, 2010

I wish to prevent the samba messages (mainly nmbd and winbindd) from appearing in the system log (/var/log/messages). I want to allow samba logging to the standard samba logfiles, but prevent the syslog getting clogged up by samba. I added syslog = 0 to smb.conf and reloaded the config but the messages were still appearing. I also tried the following (and restarted the syslog via /sbin/service syslog restart) # Suppress messages from samba.

nmbd.* /dev/null
smbd.* /dev/null
winbindd.* /dev/null

For interests sake the messages I'm getting are below (I'm not concerned about the messages themselves, I can chase them up at my leisure via the samba logs) Mar 18 09:58:29 SERVER nmbd[3808]: query_name_response: Multiple (2) responses received for a query on subnet xx.yy.z.zz for name DOMAIN<1d>. Mar 18 09:58:29 SERVER nmbd[3808]: This response was from IP xx.yy.z.zz, reporting an IP address of xx.yy.z.zz.

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Ubuntu Servers :: Large File Transfer On LAN?

Nov 11, 2010

I'm trying to create an Ubuntu Server file server that will handle large file transfers (up to 50gb) from the LAN with Windows clients. We've been using a Windows server on our LAN on the file transfers will occasionally fail... though the server is used for other services as well.

The files will be up to 50gb. My thoughts are to create a VLAN (or separate physical switch) to ensure maximum bandwidth. Ubuntu server will be 64bit with 4tb of storage in a RAID 5 config.

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Ubuntu Servers :: NTP Failing To Sync - Offset Too Large

Jun 11, 2010

I'm having trouble keeping NTP synchronized and able to provide time updates to other devices on the private network. I believe this is because the server has a too large of offset, that causes all NTP clients syncing through the server to fail.

I have two setups, one working, one failing, with mostly identical installation and settings.

Setup A is the working setup, as I will name it, is ubuntu server edition 8.04 with kernel ntpd version is 4.2.4p4.

ntpq -p outputs this information:
remote refid st t when poll reach delay offset jitter
================================================== ============================
*europium.canoni 2 u 925 1024 377 101.851 0.194 0.328
ntp.conf is:


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Ubuntu Servers :: NCFTPD Error Large File On X64 6.06LTS

Feb 25, 2010

I'm unable to download large files from ftp.

The ftp server is: NCFTPD.

My server is:

istributor ID:Ubuntu
Description:Ubuntu 6.06.2 LTS
Linux morpheus 2.6.15-55-amd64-server #1 SMP Tue Dec 1 18:31:51 UTC 2009 x86_64 GNU/Linux

when I download, it gives an 131 error unknown.

I tried the same file on a 32 b server, same version of all except 32 instead of x64.

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Ubuntu Servers :: PhpMyAdmin Not Loading Large Mysql Database?

Apr 27, 2010

I am running Ubuntu 9.10 with Apache, phpMyAdmin and MySQL. Normally phpMyAdmin loads properly, but the other day I created a large database of 6,000+ tables and 1.3 GB of data in the entire database. Now phpMyAdmin loads and shows my different databases, but if I try to open the new large database, it just loads a white page with no content. Does anyone know if I can reconfigure my server so it will be able to show parts of the database?

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Ubuntu Servers :: System Crash When Copying Large File

Jun 15, 2010

I am having a bit of a problem with my Ubuntu Server 10.04 install. I think it might be a kernel problem. Basically, what happens is when I copy a large file (a 160GB disk image) to my drive (>60GB) the system consistently crashes after about 60GB of the file is transferred. It doesn't matter if I am sending the file using cifs, or over SSH. Checking syslog (paste dump here), it seems these flush errors always appear shortly before the crash occurs. The destination filesystem is a hardware RAID 10 array with 2TB of space. It is formatted as EXT4.

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Ubuntu Servers :: Mdadm - Corrupt A Large Array Of Files

Sep 1, 2011

I've been using Ubuntu on my fileserver for quite a while now, and I've always really had this problem, but I want to finally address it and get it fixed. At seemingly random points (when my fileserver is under stress - typically while I'm writing lots of data to it), my fileserver will crash. It generally completely crashes, not responding to any further file requests or any of my SSH commands, and must be reset hard (typically by flipping the power switch). After such an occasion, I end up with some corrupted files. It seems to corrupt a large array of files (it's not an isolated issue - for example, it corrupts files that were not being accessed anywhere near the time it crashed, including files that had never been accessed during that period of uptime). The files don't get completely smashed, but they're definitely corrupted (artifacts in images, skips in audio and video files, often complete failure of binary files such as virtual hard drives or disc images).

I'm using Ubuntu Server 11.04, but similar issues to this happened for me in 10.04 LTS (in fact, I upgraded to try to solve them). I'm using mdadm to create an 8-drive raid6 array. The drives are 1.5 TB each, mostly Samsung HD154UI, but with a WD drive in there too (sorry, I can't find the model number at the moment). The hard drives themselves appear to be working fine - SMART reports no issues with any of them, mdadm says they're all up, and I have no reason to believe that the drives are at fault here (although I can conduct further tests if necessary). I've posted about this problem before here and here. In these cases, the issues seemed to be with XFS - in fact, I switched from XFS to ext4 on my RAID array because I simply believed XFS to be unstable. Unfortunately, this issue occurs with ext4 as well, so I'm fairly certain it's an mdadm issue. Here is the output of "cat /proc/mdstat", for those interested:


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Ubuntu Servers :: Compile Samba 4.0.0 Alpha 7 In Ubuntu Using The Spec File Provided In The Samba Packages?

Nov 26, 2010

this is my output when I try to compile samba 4.0.0 alpha 7 in Ubuntu using the spec file provided in the samba packages:

bin/mergedobj/samba-util.o: In function `file_lines_parse':
(.text+0x595c): undefined reference to `_talloc_steal'
bin/mergedobj/samba-util.o: In function `data_blob_talloc_named':[code]....

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Ubuntu Servers :: How To Load The GUI Environment

Mar 13, 2010

I have installed x-11 server using the command

"sudo apt-get install xserver-xorg xserver-xorg-core"


"sudo apt-get install openbox"

On the Ubuntu server 9.10 I dont know how to load the GUI environment .

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Ubuntu Servers :: Any Desktop Environment With 9.10?

Apr 24, 2010

I am a different distribution Linux user but considering to install Ubuntu Server 9.10 to run my personal website.

Question about Ubuntu Server version - does it come with some desktop environment like Gnome or KDE? I would be running Ubuntu Server on my home machine so it would be a nice bonus if I could use it to browse internet or check email.

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Ubuntu Networking :: When Transferring Large Files Using Scp Between Desktop Running Maverick And Other Servers?

Nov 12, 2010

sometimes when transferring large files using scp between my desktop running maverick and other servers running Ubuntu, Debian or CentOS, I get the following error message: 77% 258MB 11.3MB/s 00:06 ETAReceived disconnect from xxx.xxx.xxx.xxx: 2: Packet corruptI've found a seemingly related bug report on launchpad here: but the provided "ethtool" fix did not help. I'd be most grateful for any ideas on how to solve this issue. Some more info:Linux lotus 2.6.35-22-generic-pae #35-Ubuntu SMP Sat Oct 16 22:16:51 UTC 2010 i686 GNU/Linuxlspci | grep eth -i00:19.0 Ethernet controller: Intel Corporation 82567LM-3 Gigabit Network Connection (rev 02)

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Ubuntu Servers :: OpenERP And Drupal Environment Don't Get Along

May 20, 2011

I had OpenERP completely installed and running just fine. All basic install instructions just worked out of the box on Ubuntu 11.04. Now, we also are going to develop our own web site. For that we needed a web development environment. Due to the small size of our home business, we have to do it all on one PC. So I went ahead and installed everything needed to get Drupal going, among which I had to install:


and other packages.It all works like a charm, but now my openerp-web crashes when I start it with the following message:


[20/May/2011:16:17:19] ENGINE Bus STARTING
[20/May/2011:16:17:19] ENGINE Started monitor thread '_TimeoutMonitor'.
[20/May/2011:16:17:19] ENGINE Started monitor thread 'Autoreloader'.


For those that do not know it: it is a module that interfaces with the OpenERP server software to allow people to access the system through their web browser, effectively eliminating the use to install a client on their PC. Very practical for our light weight laptop that we use in combination with my PC.

Normally one would connect by browsing to [URL] and automatically get connected with the OpenERP environment.Now, however, that does not work anymore with the above error as a result. Do you guys have any idea if I have to configure something in Apache to get this working again? Possibly with instructions, otherwise I'd get lost again in no time.

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Ubuntu Servers :: Mounting Large (12TB) SCSI Attached RAID Array (formatted With Ntfs) ?

Feb 16, 2010

I have a large RAID array of 12 TB attached to one of my Ubuntu server machines. The RAID volume is formatted with NTFS. The problem is that I can not mount this volume in Ubuntu. I can read it normally if I attach it to windows machine.This is the output from "sudo fdisk -l":

sudo fdisk -l
Disk /dev/sda: 164.7 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders[code]........

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Ubuntu Servers :: Install Whole Machine Through Desktop Environment

Jan 1, 2010

i want to install whole machine through desktop environment so i want to install ubuntu-desktop but after i want to remove so how can i do so completely remove it after? i am trying to install ACE URL..How to even configure? When i do basic procedures like mkdir build cd build ../configure is says bad interpreter and after i fix this it says something about config.dab or something like that.

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Ubuntu Servers :: Install LTSP In Desktop Environment?

Jan 25, 2010

I want to been able to connect remotely via RDP protocol with a client (for example from work to house) and I found that I can use [URL... What packages I need to install, and how I configure it? I connect my laptop via wireless throught eth2.

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Ubuntu Servers :: Sudo Can't Hold Environment / Resolve This?

Oct 6, 2010

I'm with Linux 2.6.32-25-server #44-Ubuntu SMP Fri Sep 17 21:13:39 UTC 2010 x86_64 GNU/Linux , Ubuntu 10.04 Server
And I wanna execute the next script in bash profile code...

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Ubuntu Servers :: VSFTPD With NIS Environment Doesn't Work?

Apr 11, 2011

I installed Ubuntu 10.04 64bit server on DELL R710 server recently.

The basic:
[System Model] --- PowerEdge R710
[Ubuntu] ---
root@pek-mcbuild2:~# cat /proc/version
Linux version 2.6.32-21-generic (buildd@yellow) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC 2010
root@pek-mcbuild2:~# uname -ar


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Ubuntu Servers :: Create Secure Shell Environment For Users?

Feb 25, 2010

I was planning on using my VPS to grant some of my friends shells. The problem though is that I don't want them doing crazy stuff on it, like using up all my RAM or disk space. I would like to limit them to a very small 25 mb disk space, and allow them only certain application in /usr/bin like python perl irssi screen etc. I do NOT want them to be able to cd out of their home directory. I really want this to be setup like the shell provider SHellium. I can setup the FTP and SSH stuff myself.

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Ubuntu Servers :: /etc/environment Not Loaded By Root / Daemonized Processes?

Aug 19, 2010

I was under the impression that /etc/environment was the place to put variables if you wanted them to be available to all users at all times. But I just realized root which is running my service processes doesn't seem to load it.My /etc/environment:



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Ubuntu Servers :: Diskless Login - Setup A PXE Boot Environment?

Nov 24, 2010

how to to setup a PXE boot environment. The server contains a LUbuntu 10.10-installation the client is Ubuntu 10.10 Server (I didn't mix up those two...) So, everything is going fine; the client gets an ip-adres, and boots over PXE. The login-prompt is shown. Problem: I can't login. It seems my users are deleted (better not copied). Of course the system (client) works fine when I boot the system from it's harddrive. The only thing I can guess, there going something wrong with:


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Ubuntu Servers :: Allow Users To Upload And Run Scripts In Controlled Environment?

Apr 22, 2011

I am setting up a small competition for a forum where there are a set of programming tasks to complete (in various languages). At the end of the allocated time, the fastest program that successfully completes the task wins.I would like to set up a server similar to the way the Google AI challenge works, where users can upload code to the server via an html page and the code is executed and profiled on the server.The problem is obviously security... so... how can I configure my server so that the uploaded scripts are run in a completely jailed environment and do not have access to anything outside their folder and cannot execute any commands on the server?The chain of events looks like this: User writes script on local machine -> user zips script -> user browses to server html page -> user uploads script -> script is compiled and executed on the server -> user is shown output from script

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