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.

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How to check if Ubuntu 14.04 Kernel has TPROXY

I'm using Digital Ocean's Ubuntu 14.04 image and needs the kernel to be compiled for TPROXY. Is there a way to check whether the current kernel supports TPROXY?
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33 views

updating php from 5.3 to 5.5

I'm thinking of updating my php from version 5.3 to version 5.5. I was wondering if 5.5 is backwards compatible with 5.3 as it is 'just' a minor update (eg not 5.3 to 6.4). Am I running into ...
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1answer
44 views

MySQL SSL: bad other signature confirmation

I am trying to enable SSL connections for MySQL-- SSL will show as enabled in MySQL, but I can't make any connections due to this error: ERROR 2026 (HY000): SSL connection error: ASN: bad other ...
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1answer
24 views

How can I reload IPTables without interrupting existing connections?

I will be adding and removing entries to the script below automatically (adding ports 80/443 with different IP addresses). If I run this script, I am "assuming" that connections will be uninterrupted, ...
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1answer
33 views

Ubuntu Server running Plesk subversion command only accessible to root user

I have a VPS through myhosting.com the VPS is running Ubuntu 12.04.5 LTS with Plesk 12.x when I log into my VPS with the root user and do svn help I get the standard reply telling me the basics of the ...
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1answer
30 views

Pull GitHub repo on Ubuntu server start

I have an autoscaling EC2 group and I have a central config using git between servers. They are set up with keys, so they don't need a password. I want to make sure when an instance gets started and ...
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0answers
18 views

How to clone a debian or ubuntu system? [duplicate]

I would like some way to exactly duplicate what is installed on one debian system, onto another, regardless of the target system's state, using the package manager. This includes: installing the same ...
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1answer
202 views

Forced reboot caused /var/lib/mysql to 'disappear'

During the nigh my provider had to force reboot the server (pull the plug), after boot, there was a problem with the MySQL server (I'm using MariaDB). After hours of research I can't find the main ...
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1answer
28 views

Ubuntu 14.04 UWF for iptables

Can I still use the init.d iptables stop? It seems that init.d is replaced by systemd. Is that correct? The iptables is part of the kernel right and not a service. On redhat based systems it is a ...
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0answers
27 views

Basic auth not working in Apache 2.4

I know it seems a simple task and I did it many times for Apache 2.0-2.2 but in 2.4 config doesn't work. I am trying to configure basic auth for directiry: <Directory /var/www/html/docs> ...
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1answer
7 views

Linux xen directly boot windows domu?

I have the following situation: got a new notebook with Windows7 pre-installed (sda1 with boot partition, actual OS in sda2), one physical disk (sda) created an extended partition (sda3), inside ...
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0answers
30 views

crontab error with (No MTA installed) but I use >/dev/null 2>&1 [duplicate]

I'm new on linux user I try to run crontab to backup my database with vagrant user * * * * * /usr/bin/mysqldump -h localhost -u root -p root mydb | gzip > /var/backup/all/database_`date ...
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0answers
20 views

PureFTPD can't list web root when files are uploaded

I've finally made the step forward and signed up for a VPS server in exchange for my obsolete shared hosting account. I'm running Ubuntu 14.04 x32 on a VPS from DigitalOcean. On top of the VPS I have ...
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2answers
42 views

Virtual host local subdomain

I'm having a bit of trouble getting a subdomain activated on my local dev server. The server's name is janemba and I access it by going to http://janemba. I'd like to be able to have domain.janemba, ...
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1answer
36 views

KVM Ubuntu Guest cannot connect to the internet on bridged networking

I have Ubuntu 14.04 (64 bits) + KVM Host with 2 NICs: - eth0 connected to the "public" network - eth1 connected to the br0 bridge with a private ip address range From Host I can access internet, ...
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1answer
52 views

curl and wget attempting an ipv6 connection

On my dedicated server (hosted by OVH), that is running a fresh install of Ubuntu 14.04, curl and wget take approximately 10 seconds to complete a simple request. $ curl -v google.com * Rebuilt URL ...
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1answer
57 views

Nginx Password Protect Entire Port Number 8081

I'm trying to password protect an entire port on my website--https://domain.com:8081 and http://domain.com:8081 I have tried editing /etc/nginx/sites-enabled/domain.com.vhost by adding the following ...
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1answer
91 views

Monit cannot connect to Solr/Jetty instance

I have my Solr/Jetty up and running well on Ubuntu 12.04. I am trying to hookup my monit conf to monitor it, but it is having trouble connecting to the service. I have Solr running on port 8983 and ...
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0answers
53 views

xen:balloon: reserve_additional_memory: add_memory() failed: -17

We're running Ubuntu 14.04 on an EC2 virtual machine. I've been seeing a lot of these errors in our kernel log: [ 704.032085] xen:balloon: reserve_additional_memory: add_memory() failed: -17 [ ...
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2answers
60 views

Cant find my harddrives in ubuntu installation?

I was trying to setup a Microserver with two 1TB harddrives as a software RAID. Somehow it didnt work and now ubuntu 14.04 is not starting. My problem is that I dont see the drives anymore when I go ...
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2answers
33 views

After ntpdate update for ubuntu server I always receive the old php file in nginx

The problem with nginX caching happened when I used ntpdate ntp.ubuntu.com to sync my server clock. Now when I request the path http://www.example.com/project/create I receive the old PHP file that ...
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1answer
25 views

sendmail not working on ubuntu

Our websites aren't sending automated emails because the php_mail() functions does not work and it appears to be because sendmail wont work. I have tried using various command lines but no email ...
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1answer
28 views

Wrong keyboard layout with HP RAC and KVM Viewer

I am currently working with a ProLiant N54L Microserver and a HP Remote Access Card. I access the server through my Mabook with a German keyboard layout. On installing Ubuntu, the installation cant ...
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2answers
41 views

Why does Android Chrome say my site's security certificate is not trusted?

My site is https://blendbee.com. It's using a PositiveSSL certificate that is valid. In Windows 8 Chrome the certificate is fine (green lock in top left corner). But...on my Android, it's not so ...
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1answer
26 views

OpenLDAP gives duplicate attributeType error

I am setting up a login node and am using openLDAP from the repository on Ubuntu 14.04 and I am running into an issue of duplicate attributeTypes. The problem seems to lie in the "gecos" field ...
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1answer
38 views

Sudo keeps asking for password on / mounted over NFS

I have a diskless server booting Ubuntu 14.04 with / taken from NFS. I use nfs-kernel-server. I have some strange behaviour of sudo and locate. sudo keeps asking for passwords despite the Defaults ...
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1answer
30 views

Two LAN cables when using Remote Access Card?

I recently bought a HP MicroServer N54L and a HP Remote Access Card. Connecting to the server over a KVM viewer for BIOS setup etc. works fine, but when it comes to installing Ubuntu 14.04. the ...
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1answer
31 views

Auto starting rc at startup

So here are the steps i am following . So i add a conf file inside /etc/init.d/myconffile And then to get System start/stop links i have to use the command sudo update-rc.d myconffile defaults 99 ...
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0answers
36 views

What could hackers be using to send spam from my Ubuntu instance? [duplicate]

It appears hackers have set my server up to send spam. This is the result of lsof -i run every five minutes. Wed Aug 13 12:30:01 EDT 2014 apache2 8702 www-data 22u IPv6 726075 0t0 TCP ...
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1answer
37 views

How to block server's internet access and only allow LAN [closed]

I was wondering what the best way to block a server's internet access is while allowing LAN connections. Essentially, I want a server to be only accessible by LAN. What ips, ports, etc should I block? ...
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0answers
43 views

How to preserve xrdp session on ubuntu 14.04?

I installed xrdp on my ubuntu 14.04 machine using the below commands. I can now remote desktop from my windows machine easily into my ubuntu machine. However, what I notice is when I close the ...
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1answer
49 views

OpenVPN tunnel one-way traffic failure between LAN and AWS VPC

We are trying to configure an OpenVPN tunnel that allows devices on our LAN to communicate with servers in an Amazon VPC. We are using the turnkey OpenVPN access server instance on Amazon and have ...
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0answers
9 views

LTSP remote app and 127.0.0.1

I have installed SP on Ubuntu 14.04 and configured fat clients to run Apache. And the clients will run Firefox and Chrome applications from the Server using ltsp-remoteapps. FYI, I have configured ...
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2answers
30 views

How to recover key after using LuksRemovekey?

I have an encrypted partition on /dev/sda5, yesterday I use cryptsetup to remove the encryption using cryptsetup luksRemovekey /dev/sda5, but when I restart I have to provide a passphrase for ...
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0answers
14 views

Syncing client and server time for latency comparison

I'm struggling to sync my server's time (an EC2 instance in Dublin) with my local machine. I'm using sudo ntpdate ntp.ubuntu.com to sync my server's time with Ubuntu's time server. I'm then using the ...
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0answers
19 views

Can't seem to see local network on Wine

I'm trying to use Wine on Ubuntu to use a proprietary Windows program that looks for a proprietary device on the local network. I don't know where it's looking, which protocol, port or IP address it's ...
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0answers
39 views

Ubuntu 14.04 causes SSH error, but not Ubuntu 12.10 [duplicate]

I have two different servers, one has ubuntu 12.10, the other has ubuntu 14.04 LTS. I need to SSH files to a 3rd remote server. The 14.04 LTS server throws an error when attempting to SSH. This is ...
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1answer
51 views

Restarting Apache 2 broke website

I was having difficulty restarting Apache on Ubuntu. I tried sudo netstat -ltnp | grep ':80' I get: tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 31855/httpd if I ...
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2answers
58 views

Should I partition a RAID or just create a file system on it? [duplicate]

Given a RAID 6 created from 6 drives /dev/md0 which should be used fully for data (no booting from it, root and swap are on a different drive), should I create one partition on that device and then ...
2
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1answer
57 views

Default user for MySQL [duplicate]

With a fresh (but old) install of Ubuntu and MySQL, I found I could access the MySQL via command line client without being asked for any user or password. Logging in as root requires the root ...
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0answers
4 views

How to extend the primary partition for Ubuntu Server running in VMWare Player [migrated]

I ran out of space on a VM I use at home. It runs Ubuntu server and the existing space was 20G. I decided to increase it to 100G to ensure I have plenty of breathing room. So I followed the ...
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2answers
68 views

Out of memory at 72% usage

I've a problem currently with my 48gb ram server: it ramdomly kills processes because of Out of Memory, even if it only uses 72% of it (I got this figure from my monitoring interface). (swap usage: ...
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0answers
43 views

Squid Proxy does not prompt for authentication and denies every request

I have a problem with a squid proxy that always denies requests. The bad part is, i never get to see an authentication pop-up... Squid is running on an Ubuntu 14.04 vserver. I'll provide you my ...
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2answers
25 views

Moving folder of files from CentOS server to Ubuntu Server

I have a production server and a development server. Problem is the development server only has 20GB diskspace and about 8GB available. The folder of files I'm trying to move is 6GB(ish). I've ...
0
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1answer
48 views

Could not access pid file for elasticsearch

I am not a die-hard linux engineer, but I am having some problems with starting Elastic Search. Some stats: Server: Ubuntu Server 11.04 Elastic Search: 1.2.3 (installed with appitude) When I start ...
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1answer
58 views

apache config - vhost item listed but cannot be found

I'm using Ubuntu 14.04, with Apache installed by tasksel. apache2ctl -S says www.ijiameng.com exist in different conf files, in which default has higher priority, as below: ...
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1answer
98 views

I think my server was hacked - how do i know what has been changed? [duplicate]

I have read the following posts which didn't answered my questions: - My linux server was hacked. How do I find out how and when it was done? - How do I know if my Linux server has been hacked? - and ...
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1answer
48 views

Group of workstations refuse to SSH to one another, but can connect just fine in and out to others

I have a group of Ubuntu 14.04 workstations that are all clones deployed via image. After imaging, they are assigned a static IP and they also delete/regenerate their host keys. Each of them on their ...
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0answers
52 views

What is logcheck, and why is it consuming 100% CPU out of the blue? [migrated]

I have a server that's hardly used, basically a fresh linode VPS with Ubuntu 12.04 LTS. It has been running for 14 months with hardly a blip in the CPU graphs (2% max, average over 2 hours). ...
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1answer
18 views

How can I make unison stop writing itself to root root when sshing from server to server?

I am using this command: sudo unison /opt/bitnami/apache2/htdocs/test/wp-content/uploads/ ssh://xxxx@wxxxx.cloudapp.net:7775//opt/bitnami/apache2/htdocs/test/wp-content/uploads -owner -group upon ...