Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

learn more… | top users | synonyms

2
votes
1answer
497 views

Server responds to pings but no SSH or HTTP access

I do not know what has caused this but my websites have been down for 2+ days now and I cannot connect via SSH or FTP either. The only way to get signs of life from my server is to reboot it via the ...
1
vote
1answer
204 views

IPTables quota not working on Ubuntu 12.04

I've been struggling porting IPTable rules from Ubuntu 10.04 to Ubuntu 12.04. The problem is that quota seems to be broken. Take this very simple instance of a quota rule. iptables -t mangle -A ...
1
vote
1answer
228 views

Blocking a service to countries with UFW

I am using UFW trying to block SSH access from multiple countries. I have been successful completely blocking access but I need a refinement: The server needs to allow world access to other services ...
2
votes
1answer
131 views

Trying to differentiate between two identical NIC's on midly diff Linux laptops

The helpful commands for dissecting loaded devices /NIC's Beyond dmesg, there is a set of commands I can't remember, that illustrate details about LINUX devices specifically NIC's, lspci is one of ...
2
votes
1answer
442 views

Upgrade Ubuntu Kernel from command line

I am running Ubuntu 10.04 on my server. It has Ubuntu kernel 2.6.X running on it. I was trying to update my kernel yesterday. For that I had run the following commands sudo do-release-upgrade -c ...
0
votes
1answer
294 views

Error creating directory: Operation not permitted, can still create files, permissions are correct

I have a directory mounted over FUSE/SSHFS. It's an Ubuntu 10.04 client connected to an Ubuntu 10.04 server. My user has write permissions for the directory in question, and has been able to create ...
0
votes
1answer
199 views

download the torrent file contents to my linux server

I want to know how can I set up bit torrent client on my web server, I found this article http://www.cyberciti.biz/tips/linux-command-line-bittorrent-client.html but ...
0
votes
1answer
96 views

Unrecognized characters in a genereted index of a directory

I have some files on a server with non-ASCII names and when I'm browswing the apache-generated index of a directory, the non-ASCII characters are not recognized (shown as ?). I've added instructions ...
0
votes
0answers
347 views

configuring ldap client in ubuntu ( Bad file descriptor error )

I am configuring ldap client in ubuntu. I am following this tutorial link to configure the ldap client. But, When I try to update nss to use ldap, I am getting an error. That is, root@sat:/# ...
0
votes
1answer
2k views

Can connect to ubuntu server with Putty but can't via WinSCP

I have just updated from 8.04 to 10.04 after such a long time I am rather excited. But since the update I am now unable to login to my server via winscp but a connection with putty is still completely ...
0
votes
1answer
395 views

Ubuntu server P2V that is running software raid5

Here is my challenge: I have a physical production webserver running Ubuntu 10.04 with software raid 5 (mdadm) that I have to virtualize to an VM ESXi5.0 host while minimizing the down time ...
6
votes
0answers
526 views

Exim 4.71 does not add DKIM signature to outgoing emails

I am trying to add DKIM to my domain, I have created a key, added the following to /etc/exim4/conf.d/transport/30_exim4_config_remote_smtp: dkim_domain = mydomain.com dkim_selector = mail1 ...
1
vote
1answer
217 views

Postfix - virtual mailbox - exclude addresses from wildcard coverage

are there syntax elements or another way to exclude one or more mailadresses from a wildcard in the virtual mailbox configuration of postfix? My current working configuration is ...
1
vote
0answers
466 views

Ubuntu, ruby 2, rails 4

I'm trying to setup a server, which has Ubuntu 10.04 LTS, Ruby 2.0.0-p0 and Rails 4 beta1. I can get everything installed but rails 4 has a slight error and I'd like to get someones opinion. When I do ...
0
votes
1answer
172 views

Postfix not forwarding emails

I followed the guide here: http://library.linode.com/email/postfix/gateway-ubuntu-10.04-lucid which has similar points to the question here simple postfix configuration - forward all incoming email to ...
1
vote
1answer
225 views

apt-get upgrade will run on command line but not from cron bash script

Running the following commands on the command line works fine $sudo apt-get update $sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state ...
1
vote
2answers
434 views

Setting up chrooted shell accounts with schroot and debootstrap on Ubuntu 10.04

UPDATE: I never did get this figured out. Instead i ended up jsut using jailkit since there is a ton (though sometimes outdated) documentation on usage. Id still be interested in knowning how to get ...
0
votes
1answer
1k views

what is Virtualization kvm vnet1 and vnet2

please any one can advice what is vnet1 and vnet2 in kvm Virtualization as iam using host ubuntu 10.04 LTS as i have a bridge and everything is running perfect but when i did the command brctl show ...
0
votes
2answers
2k views

Ubuntu: How to find unallocated partition/free space?

I've a legacy dedicated server with Ubuntu onboard (console mode only). Based on docs (prices etc.) I see that server must have 250+ GB, but I see significantly less: $ df -h Filesystem ...
1
vote
1answer
277 views

configuring Munin for Nginx 1.2.4 on ubuntu 10.04 ubuntu ec2 instances

I am running my ruby on rails app ubuntu 10.04 ec2 instance and I am using nginx 1.2.4. I am trying to configure munin to get stats fron nginx, I have recompiled nginx and its working fine but I am ...
0
votes
2answers
1k views

Restoring /etc/init.d/apache2 on Ubuntu 10.04 [closed]

In my web-server configuration troubleshooting I went through a process of uninstalling apache2 and reinstalling it. I accidentally removed the file /etc/init.d/apache2 which is responsible for ...
1
vote
2answers
108 views

Connection refused for a few hours

I use a Linode server, and have had about a half-dozen domains running on it for the past couple years without issue. It's running Ubuntu 10.04 and Apache. Today, for about 3 hours, all http requests ...
1
vote
1answer
127 views

Number of user served by nginx on ubuntu EC2 Instance

commerce web site running, on multiple ec2 instances. The web content is served using nginx and its a ruby on rails application. I am using a load balancer which routes the traffic to the multiple ec2 ...
0
votes
1answer
52 views

PHP 5.2, Ubuntu 10.04 LTS truncates external input vars

Why does PHP 5.2 on Ubuntu 10.04 LTS truncate large number $_POST (external input) vars, like the max_input_vars directive in PHP 5.3? I am supporting an old e-commerce site (that is soon to be ...
1
vote
0answers
26 views

Ubuntu 10.04 server delay when POST to mySQL

I have a Ubuntu 10.04 Server and for some reason it always seems to exhibit an intermittent delay whenever performing CRUD operations on the mySQL database. Most Post commands are executed within a ...
2
votes
1answer
160 views

Cannot directly reject traffic on port 25

My server is running Ubuntu 10.04.4 LTS and I want to reject traffic to port 25. The goal is this: $ telnet {ip} 25 Trying {ip}... telnet: connect to address {ip}: Connection refused telnet: Unable ...
0
votes
1answer
3k views

Errno::ENOSPC: No space left on device in Ruby on Rails

Iam hosting a Ruby on Rails Application on a Linode with 96 GB storage. All the images of my application are stored on amazon and they are fetched from amazon. Thus my linode should have a minimum of ...
1
vote
0answers
93 views

Preventing NFS Denial of Service

I have a NFS4 server running Ubuntu 10.04 Server, on an enterprise environment with 50+ clients. Overall, everything works fine, but from time to time, some client starts making +1000 NFS operations ...
1
vote
1answer
147 views

What would cause an average load of 10-30 (rather than 10-30%) [duplicate]

Possible Duplicate: How to understand the memory usage and load average in linux server I'm not sure whether this would be better titled "Why would Nagios need to monitor a load reaching ...
0
votes
0answers
835 views

Multiple Duplicate Lines when running iptables -L?

Specifically talking about an Ubuntu 10.04 LTS server (Lucid Lynx), although its probably applicable to other Linux versions. I was trawling through the logs for a few websites, doing some spring ...
0
votes
1answer
233 views

Xdebug - no profile or trace output

I'm at a bit of a loss trying to get profiling and tracing working with Xdebug (debugging works fine). What's worse is that I have it working just fine on a different server/client setup, but I can't ...
3
votes
1answer
325 views

Rsyslog messages are truncated, not sent to the correct file

On Ubuntu 10.04 LTS, I'm using the stock rsyslog configuration and added a custom file in /etc/rsyslog.d with the following contents: # cat /etc/rsyslog.d/62-pc local3.debug /var/log/pc/debug.log ...
0
votes
1answer
52 views

What should I back up before reinstalling new Ubuntu LTS? (8.04 > 10.04)

A work server is in need of upgrading, im hoping to move it from 8.04 LTS to 10.04 LTS (Can't move to 12.04 unfortunately as its not provided by our VPS provider) I have backed up the following. ...
2
votes
1answer
230 views

Hot configure Haproxy 1.5

I had been using this command to restart haproxy with success: sudo haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid) However, after upgrading to recent ...
4
votes
4answers
2k views

How to increase max FD limit for a daemon process running under a headless user?

To increase the FD limit for a daemon process running under a headless user on a Ubuntu Linux machine we did following changes in /etc/security/limits.conf soft nofile 10000 hard nofile 10000 We ...
0
votes
1answer
343 views

How to change Linode IP to open different website?

I have a LINODE 512 account (Ubuntu 10.04 LTS) where I have got 1 IP. Using /etc/apache2/sites-available (enabled) I have hosted 4 websites, which is working very well. But the IP address I have got ...
2
votes
1answer
15k views

how to fix “no free leases” issue in dhcp3?

I am facing no free leases issue. I am building a new server. I have successfully installed ltsp. Then, I configured the dhcp. This is my dhcpd.conf file. option subnet-mask 255.255.255.0; option ...
-1
votes
1answer
99 views

how to block mac address with portsentry

I use portsentry to block ip address who trying to scanning. Now how do I want to block mac address who trying to scanning. Can I use portsentry, or possibly other tools?
4
votes
1answer
3k views

Sendmail process failed with error code 67

Everything was worked fine but someday sendmail stop working on me. I'am trying the following command line: echo "Body text" | mail -s "Some subject" example@somemail.com And got: ...
1
vote
1answer
826 views

Apache Server Hello in SSL Slow

I'm trying to debug a problem with SSL in Apache. I've used Wireshark to capture the packets, and I see the client hello message go out, and then about 10 seconds or so later, I get back a server ...
1
vote
2answers
2k views

Trying to set up OpenVPN server on a vps

I'm trying to set up an OpenVPN server on my VPS for myself when I'm in public places, using this tutorial, http://tipupdate.com/how-to-install-openvpn-on-ubuntu-vps/ However whenever I try to start ...
1
vote
1answer
96 views

Apache ReWrite Condition Thinks A Directory Isn't a Directory?

On my server (Apache2, Ubuntu 10.04), wpsa is a directory in my webroot. When accessing the url mysite.com/wpsa, a ReWriteRule which should not occur when the requested file is a directory, runs ...
9
votes
5answers
904 views

How do I find the cause for a huge difference in performance between two identical Ubuntu servers?

I am running two Dell R410 servers in the same rack of a data center (behind a load balancer). Both have the same hardware configuration, run Ubuntu 10.4, have the same packages installed and run the ...
0
votes
1answer
102 views

MRTG Graph Positoning

I have deployed MRTG 2.16.2. This is running without any issue, The problem is the graph moves Left to Right as in the image. Can we make it Right to Left.
0
votes
1answer
756 views

Remove a non existing postgres cluster

I have a postgres 8.4 install on ubuntu 10.04. I created a cluster on a disk that is not mountable anymore. Now I want to remove postgres but when I do apt-get remove postgresql-8.4 I get: dpkg: ...
-1
votes
1answer
77 views

Apache2 Service started twice

My apache2 web-server starts twice and wont bind, so i have to do this: sudo netstat -nap | grep 0.0.0.0:443 sudo kill -9 1243 sudo /etc/init.d/apache2 restart Is there any way i can make a script ...
2
votes
4answers
5k views

saslauthd authentication error

My server has developed an expected problem where I am unable to connect from a mail client. I've looked at the server logs and the only thing that looks to identify a problem are events like the ...
0
votes
2answers
860 views

Cloudstack virtual machines can't communicate with virtual routers when they are on different hosts

I'm using Cloudstack 2.2.14 on a Ubuntu 10.04 set of hosts, and I have a problem on my setup. I have two hosts running. When a virtual router is created on host 1 and a virtual machine using that ...
4
votes
1answer
20k views

“500 Illegal PORT command” using command-line ftp [closed]

Has anyone figured out how to ftp a file down to a EC2 AMI using ubuntu on the command line? I am able to connect to ftp.drupal.org (I'm trying to dowmload a Drupal module) and then I can't even ...
0
votes
3answers
837 views

Is it possible to upgrade Ubuntu 10.04 32bit to 64bit with out reinstall OS?

My VPS server is running Ubuntu 10.04 32bit now, but I have to upgrade my OS to 64bit because of the 32-bit limitation of mongoDB. But if i reinstall the system, there are a lot of programs need to ...