Ubuntu 12.04, named "Precise Pangolin" is the current Long Term Support (LTS) release of Ubuntu Linux. LTS releases receive updates for 5 years and have available paid support from Canonical. The version number comes from the year and month of release (April of 2012).

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Apache 2.2 fails with “unable to write 'random state'” with 2048-bit RSA key (1024-bit works fine)

I'm usually pretty good with Apache and OpenSSL, but this one has me completely baffled. I'm running Apache 2.2.22 and OpenSSL 1.0.1 on a Ubuntu 12.04 LTS Server. I have an IP-based virtual host ...
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2k views

Ubuntu 12.04/14.04 - apt-get 404 Not Found [IP: local-dns-server-ip 80] through proxy

I am trying to setup an ubuntu server (12.04 or 14.04) and have installed the server image onto the system I am using. Everything works fine until I try to run sudo apt-get update. When this runs, I ...
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47 views

Change the logical volume

I am quite new this snapshot process. Let, I have three logical volumes as A, B, C. I worked on logical volume C. But accidentally when I restart the system, it goes to the snapshot A. How can I ...
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663 views

Command-line CPU frequency scaling?

How to configure Ubuntu 12.04 Server to dynamically adjust CPU frequency during quiet times? I've found a set of instructions at http://ubuntuforums.org/showthread.php?t=944190, suggesting to add ...
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395 views

Cannot seem to get Ubuntu Kickstart and preseed to cooperate with partitioning

I am trying to set up a minimal installation for some Ubuntu 12.04 workstations where I can pop in a CD-ROM, hit enter a couple times, and have it build me a ready-made system for imaging and ...
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1k views

rsnapshot frequently ext3-fs error: “ext3_lookup: deleted inode referenced:”

I've having following problem frequently on our backupserver. I'll try to explain the issue in the hope somebody could clarify why and how to fix it Setup details We have a DELL r200 server attached ...
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219 views

Mounting main partition read-only and temporary folders as tmpfs

I have a small embedded board PC which uses flash card to boot and I'm running Ubuntu server 12.04. But since flash cards have limited lifetime I would like to mount it as read only and have only some ...
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213 views

KVM on Ubuntu: Port forwarding to a guest VM

I installed kvm and set several guests on a server using vmbuilder. Here is the following configuration : server host1 (xxx.xxx.xxx.xxx) -> guest vm1 (192.168.0.3) ...
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242 views

VMware Fusion Ubuntu 12.04 LTS Server - Soft Lockup CPU Stuck

I have a strange Stuck Problem with VMware Fusion and Ubuntu 12.04 as Guest System. On High Loaded process the System stucks with "Soft Lockup CPU Stuck" and i have to reboot the VM...the Same System ...
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369 views

Ubuntu NFS Client connecting to Windows 2008 R2 NFS share - permissions issue

I have an Ubuntu 12.04 LTS x64 trying to connect to NFS share on Windows 2008 R2 server - which is a domain member server. I can mount the share in Ubuntu but if I try to ls the mount folder I get ...
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368 views

Courier MYSQL_QUOTA_FIELD isn't working

In /etc/courier/authmysqlrc, I have MYSQL_QUOTA_FIELD CONCAT(quota, 'S') But connecting to the account via RoundCube or Thunderbird with the Display Quota plugin shows an unlimited/unknown quota. ...
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10 views

ModSecurity on Apache 2.2 in EC2 - HTTP Status 413 messages dropped

Hi I am running Mod_Security on Ubuntu instances in EC2 behind an Elastic Loadbalancer. The app is a Ruby App. I have set SecRequestBodyLimit 293601280 When I upload files below that size, they are ...
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44 views

uwsgi + nginx + flask: upstream prematurely closed after file is downloaded

I created an endpoint on my flask which generates a spreadsheet from a database query (remote db) and then sends it as a download in the browser. Flask doesn't throw any errors. Uwsgi doesn't ...
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18 views

cyrus sasl 2.1.26 on ubuntu 12.04

I have to build openldap from source as the one provided in repo is a bit old. I downloaded openldap version 2.4.40. I want it to use cyrus sasl To install cyrus sasl, I did "sudo apt-get install ...
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34 views

Can't create/write to file '/mnt/temp/something' (Errcode: 13)

I changed the tmp directory of the mysql configuration to a mounted disk and on service mysql restart I get following error: Can't create/write to file '/mnt/temp/something' (Errcode: 13) To my ...
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167 views

Network Performance / SMB-CIFS / Guidance

I'm an IT professional working out of my home office. I'm having some performance problems (NAS file copies) which I'm trying to isolate, using iperf. My question is on iperf. Infrastructure - ...
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355 views

Client SSL fails with GlusterFS 3.5

I'm running GlusterFS 3.5 from the official Ubuntu packages on Ubuntu 12.04 and when I enable client.ssl, mounting starts to fail. The error I'm getting is: [2014-06-13 10:33:52.690770] E ...
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16 views

Connection problema to specific IP

Sometimes, like twice a year a have problems of connectivity from my server to an api server. And only to that api server. Other third party services we use were working fine. I am not so good on the ...
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56 views

FTP login via vsftpd

There seems to be quite a lot of posts about FTP login via vsftpd but none worked for me. I'm aware that FTP is not really secure but I have an uploader page which uses FTP to upload content to ...
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1k views

Confluence Proxy Error Reason : Error reading from remote server

Since this morning I have trouble accessing my confluence. It's on an Ubuntu 12.04 server. The error itself is this Proxy Error The proxy server received an invalid response from an upstream ...
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73 views

Bridging Adapter in Ubuntu 12.04 LTS for KVM

Fresh install of Ubuntu 12.04 LTS with libvert/KVM installed. I have 2 virtual machines that I need need to be on the same LAN as the host. The host has two physical interfaces eth0 and eth1. eth1 is ...
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117 views

EC2 - editing .bashrc causes terminal to hang and checks to fail

I've been testing this for the past few hours with no luck. When launching an Ubuntu 12.04 EC2 micro instance, I SSH to it, create a new user and continue with installing Ruby version manger under ...
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322 views

Icinga notification behaviour

The notifications I'm getting and not getting from Icinga don't seem to be making sense and I'm hoping someone here can help me out. It's Icinga 1.10.1 running on Ubuntu 12.04.3 LTS When the host ...
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4k views

NGINX connect() to unix:/var/run/php5-fpm/forums.socket failed

I recently set up my server again with nginx, PHP-FPM. i did what I always do but now the nginx or php-fpm doesn't process php files. ( I test with the simplest form of php phpinfo(); ). In the error ...
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1k views

lxc container doesn't start because - lxc_conf - failed to setup the console

I use ubuntu 12.04 server with all updates I was restarted lxc container by a command in shell: "reboot" lxc version is: 1.0.0~alpha1.0+master~20130930-1830-0ubuntu1~ppa1~precise1 #uname -a Linux ...
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265 views

How do I allow www-data to (negatively) change the niceness of a process in Linux?

So I'm running a website using django and sometimes I call scripts located on the server by spawning a subprocess in python. When looking at the processes with "top" I see these are called under the ...
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45 views

Installation of nagios failed due to ucf and file acls

While installing Nagios give me this error and hence the packages left unconfigured on my server. I looked for some help but they don’t tell me the exact solution. Does any one have a fix. cp: ...
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69 views

PostgreSQL replication lag Ubuntu 11.10/12.04

I've a PostgreSQL cluster running on Amazon AWS EC2 instances with streaming replication and "hot standby" option enabled. I'm now gradually upgrading it from Ubuntu 11.10 to Ubuntu 12.04 LTS and I've ...
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201 views

Hyper-V: Ubuntu guests running out of memory

We appear to have a problem with Ubuntu guests running out of memory. We have several on 12.04 (LTS) and one on 13.04 and seem to have the same problem. It takes around 30 days from restart to ...
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216 views

Volume unreadable in KVM guest after host volume resize

I have a KVM guest requiring more space on one of it's partitions. This partition is actually an LVM volume on the host. So I first unmounted the partition in the guest, switched to the host and ...
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274 views

python ubuntu and ImportError: libblpapi3_64.so: cannot open shared object file: No such file or directory

How do I set a LD_LIBRARY_PATH in ubuntu 12.04? in .bashrc LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/ubuntu/blpapi_cpp/Linux in /etc/environment ...
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155 views

How to confine FTP users to a root directory securely

I need to provide multiple users FTP logins, some able to write, some only to read, to a single FTP root directory. I very much want to restrict access so that they cannot see the file system above ...
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335 views

Ubuntu Server command line terminal extremely slow

I recently installed Ubuntu Server 12.04 on a computer with the following specs: Pentium 4 1.5GB RAM 80GB HD Installation went smoothly and at first it worked well. However, after doing package ...
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53 views

Restrict users to certain applications only

We are using many applications like zabbix, phabricator, AC etc. We need to integrate LDAP in all these applications. These application support LDAP but not group based authentication. Please let us ...
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203 views

Mounting /var/www for File recovery

I'm in the process of recovering my server's files in a "Rescue" mode. Its a Ubuntu 12.04 with 2x3TB in RAID1. The instructions were to SSH into the server in "Rescue" mode, mount the partitions, ...
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161 views

Samba server: Script before allowing opening a share

I have a small home server running Ubuntu 12.04 with an external hard drive attached to it. The external hard drive is mounted with autofs. Autofs basically unmounts a hard drive if it isn't used for ...
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345 views

LDAP secondary group working for only some users

On an Ubuntu box, I'm having issues with LDAP secondary groups for one user, sabnzbd. The user should be a part of the media group. daniel@server:~$ id sabnzbd uid=4996(sabnzbd) gid=4996(sabnzbd) ...
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214 views

Problems installing Ubuntu on Dell 2950, trying Server 12.04,

I have tried to install Ubuntu Server multiple times to no avail? wondering about other things as well? HDWR Config: 4GB RAM, 4 2-TB drives in Raid 5 Vol configured through Perc5i. When going ...
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128 views

VPC private ip address unable to communicate to the network interface which has an elastic ip assigned

I'm not sure if this is how VPC EC2 private addresses are supposed to work. I have two instances in VPC each are allowed to talk to each other (security group), and each instance has two network ...
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539 views

Warning installing OpenErp 7 on a ubuntu 12.04 virtualized server

I've installed OpenERP 7 on Ubuntu server 12.04.1 on a virtualbox 4.2.6. I followed this useful tutorial. But almost at the end, when I start the openerp server I get several lines of information on ...
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403 views

How does one configure UFW to allow private DNS requests, but block DNS requests from internet

I have an Ubuntu Server 12.04, with two network cards: eth0 is connected to the internet eth1 is connected to a private network (192.168.10.1) The server is configured as a gateway and hosts DNS ...
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153 views

mdadm drive UUIDs chanaged, can they be changed back?

So I ran into this trouble and I believe I lost all my data..However I found an old mdadm --examine --scan file I made a month ago and an old mdadm.conf....Is it possible to use these two items to fix ...
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146 views

Use ISPConfig3-Ubuntu-VMWare as DNS server for Windows 2008R2

I've set up a Loopback Adapter on my Windows with IP 125.0.0.1 in my Windows 2008 host, I've installed ISPConfig3 on Ubuntu-12.04-i386 (VMWare) using tutorial here . The IP for Ubuntu is ...
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231 views

UFW blocks SSL connections Varnish/Apache2 on Ubuntu 12.04

I have installed Virtualmin on a Ubuntu 12.04 server and I'm using LAMP stack with Varnish (:80) in front of Apache (:8000). However, I cannot access https when UFW is enabled. When I disable UFW, all ...
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152 views

SVN post-commit hook failed after Ubuntu upgrade from 11.04 to 12.04

After Ubuntu upgrade from 11.04 to 12.04 all my SVN post-commit hooks doesn't work throwing errors: post-commit hook failed (exit code 1) with output: sudo: no tty present and no askpass program ...
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98 views

rkhunter (1.3.8), crontab, ubuntu 12.04.1 — Very strange behavior

1.3.8-10 Rkhunter, Ubuntu 12.04.1 I have a strange problem with rkhunter. I haven't found anything helpful after googling extensively... for days. If I run rkhunter from crontab I'll get a bunch of ...
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84 views

Nmap SYN Scan blocks all connections?

I have ServerA (running Ubuntu 12.04 (IP: 10.10.10.200)), a KVM DomU of an also Ubuntu Dom0 that is trying to perform a scan against ServerB-ServerZ (Mixed OS (IPs:10.10.10.20-199)) using the command: ...
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109 views

Motd truncated Ubuntu 12.04

I set up the motd to change with update-motd. The file at /etc/motd (and /var/run/motd) does show the full contents, but when I log in through ssh, the motd is not fully shown. Why would this happen? ...
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580 views

MySQL crashes when connecting from localhost with tcp (UNIX sockets work)

I have Ubuntu 12.04 running MySQL server 5.5.24. I can connect with mysql --user root -p. status shows me : ... Connection: Localhost via UNIX socket ... When I try to connect with mysql --host ...
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93 views

Domain root on nginx not working

mydomain.com is running with nginx1.2, php-fpm, apc on an ubuntu server (medium - amazon ec2). I have been tweaking my server for past 6 months, however a problem started occurring since day before ...