Tagged Questions

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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0
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24 views

moving openldap server from centos to ubuntu

I am trying to setup ldap server on my ubuntu 14.04. I had previous ldap server setup installed on CentOS 6 which uses flat-file configuration i.e slapd.conf method for ldap. I did take backup for my ...
1
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0answers
39 views

Ubuntu on EC2 boot error after dist upgrade to 14.04: disk drive for / is not ready yet or not present

I just upgraded my Ubuntu 11.10 EC2 instance to 12.04, then to 12.10 and finally to 14.04 using the do-release-upgrade command each time. I arrived at 14.04 and the instance will not boot now, it ...
0
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0answers
18 views

Boot from ISO on Remote Server with RAID (Ubuntu)

I have tried to boot from an iso file with GRUB but it does not work. The problem is that grmf-rescueboot and other standard systems don't work with a Software-RAID (mdadm). So how can I boot from an ...
0
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1answer
45 views

How to share nginx log's without sudo to another user?

I have 2 users on my server. One with sudo access another without. How can i give access to nginx logs /var/log/nginx/error.log To another user without sudo permission to use cat ...
1
vote
1answer
56 views

High packet loss with kvm, bridge and bonding

I have 2 servers connected through cisco linksys sg500. Both hosts have identical configuration (Ubuntu 14.04 LTS, 4 * 1Gb/s network interfaces with bonding). When I set up bridge and interface ...
0
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0answers
30 views

AWS connection error: Permission denied (publickey)

Sorry if this sounds redundant to you but trust me its not. I have tried almost majority of the links related to this problem but nothing is working for me so far. I even tried this article two. Below ...
0
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1answer
43 views

Ubuntu SSL connection with TLS connection error [closed]

I am using Ubuntu 12.04, installed at VirtualBox (Mac) using vagrant. I am not using any proxy server. In my company network, when I try curl -1vsS ...
0
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0answers
6 views

How to set SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS in Ubuntu 14 SSL Settings [duplicate]

I believe I'm having this problem: https://www.daniweb.com/hardware-and-software/microsoft-windows/threads/50765/why-i-cant-access-the-web-pages-by-ie-https-with-des-cbc-sha Their solution is this ...
0
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1answer
85 views

Adding static IPs on a p1p1 interface in ubuntu 14.04

I'm wondering if anyone can give me a rundown for networking configurations in ubuntu when the interfaces are p1p1 etc. I have tried p1p1:0 (like eth0:0) for secondary IPs to no avail. If someone ...
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0answers
13 views

Issue with postfix to send and receive emails in outlook [closed]

Well i followed this tutorial: https://www.exratione.com/2012/05/a-mailserver-on-ubuntu-1204-postfix-dovecot-mysql/ if i connect via telnet in localhost and send email or fetch email with imap ...
0
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1answer
42 views

Execute a service as a specific user under ubuntu

I'm running a gameserver and want to start it on a screen on system start, but screen is user specific, so I have to run the command as 'user'. So I wrote this short service script which starts itself ...
0
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1answer
27 views

Multiple SSL Certificates Deployment For Multiple Domains at Single Server Ubuntu 12.04 [closed]

I would like to host multiple domains at same VPS and need to configure SSL certificate for those. The server is Ubuntu 12.04. All domains have their own certificates. I need help regarding multiple ...
-2
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0answers
18 views

Dovecot permissions error

Nov 9 04:31:38 ip-172-31-27-91 dovecot: lda(thevjm): Error: file_dotlock_open(/var/mail/vmail//thevjm/mail/dovecot.index.log) failed: Permission denied (euid=1001(thevjm) egid=1001(thevjm) missing +w ...
0
votes
1answer
27 views

Multiple domain server, sendmail working erratically

Movie synopsis: I'm managing just a few websites with VestaCP, each website has its own domain and so far it works good. The server is on Linode. I have implemented a very simple contact form in one ...
2
votes
2answers
333 views

Docker containers can't resolve DNS on Ubuntu 14.04 Desktop Host

I'm running into a problem with my Docker containers on Ubuntu 14.04 LTS. Docker worked fine for two days, and then suddenly I lost all network connectivity inside my containers. The error output ...
0
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1answer
17 views

Wordpress images broken after upload on ubuntu 14.04

Ubuntu: 14.04 Wordpress: 3.8.2 I'm migrating an old website to a fresh setup using wordpress front-ended with nginx. It's mostly gone fine, including creating a custom theme, but when I upload ...
0
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1answer
12 views

Ubuntu UFW setup on database server for connections to a varying array of clustered applications

I'm a little confused and could use some clarification. Let's say I want to deny all connections to a mongodb server, except for to SSH from my IP and from my IP to port 27017. The way I understand ...
0
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0answers
10 views

Interpreting Munin's memory graph high committed memory [duplicate]

I'm trying to make sense of these munin graphs I'm looking at, but I'm not sure what they're telling me. My Ubuntu Apache web server is crashing semi regularly and I can't tell why, but the big thing ...
5
votes
1answer
145 views

Cron daemon reporting “unknown user 'tomcat6'” every day since I removed tomcat

I'm running Ubuntu 12.04. Since I removed tomcat via aptitude purge the other day, I keep getting the following error from Cron daily: /etc/cron.daily/logrotate: error: tomcat6:7 unknown user ...
0
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0answers
46 views

GitLab can not send email correctly through public SMTP server

I installed gitlab on ubuntu 14.04 server following official instruction. I want to send email to new users using public mail server, like gmail, 163, qq. However gitlab can't send email successfully ...
0
votes
1answer
7 views

iRedMail missing apache2-mod-auth-mysql

Whenever I try and install iRedMail, it gives me and error saying that apache2-mod-auth-mysql is a missing dependency and I tried installing it but there is no such package
0
votes
1answer
15 views

Exim need to send mail off server

Never needed to set up a mail server before. I've got exim up and running perfectly fine. When I send an email using command line to my.email@gmail.com it works wonderfully, arrives from ...
0
votes
2answers
62 views

Monitor server / website load of bandwith

I've been doing a lot of searching around for a tool to monitor a website's "bandwidth" usage, and I'm not talking about how many MB/data is being loaded but the servers actual output speed, to ...
0
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0answers
5 views

Why is ping resolving to an IP 198.105.254.228 for any random hostname that i type? [migrated]

I have a precise32 (ubuntu 12.04) vagrant vm running on my system. If i try to ping a random string, eg ping "thisip.doesnot" it resolves to an IP 198.105.254.228 . This is try for any other random ...
0
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1answer
33 views

Trying to setup Roundcube using iRedmail

I'm trying to setup Roundcube using iRedmail. iRedAdmin works fine - I am able to create domains and users without issue. However, when I am trying to log on with a newly created email address in ...
2
votes
0answers
28 views

Openvpn server with bind9 DNS on AWS. Linux client cannot resolve host names.

I have a openvpn server set up and working on an AWS debian instance. It works as should but I want to push DNS queries to linux clients from bind9 which is on the same server as openvpn. All seems to ...
-1
votes
1answer
42 views

Very weird port forward on Ubuntu

I have a droplet running Ubuntu 13 on Digital Ocean. On it I have a node server running on port 5000. From the outside I can access that server on port 80, but I don't know what's forwarding the ...
0
votes
1answer
36 views

How to create a bootable ISO image from a disk snapshot

I've taken a disk snapshot of my Ubuntu VM from Amazon EC2. The snapshot is a ZIP archive of the whole disk. I've downloaded and then extracted the snapshot. Now I would like to create a bootable ISO ...
0
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0answers
38 views

What can CPU and disk usage be at maximum, to handle visitors without causing slowness? [duplicate]

What should these rates be at maximum, to handle visitors without causing slowness? Such as 5mb/s and %20 CPU usage? I might get a lot of visitors soon and I want to be ready beforehand. My current ...
0
votes
1answer
21 views

How do I tell a headless Ubuntu 14.04 server how to access a shared drive that is on Windows domain and renew password for a Windows user?

Inside a corporate situation, the machines are largely controlled using Microsoft technology. I have another server on the same network that is running Ubuntu 14.04 headless. No GUI. I want to write ...
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0answers
22 views

Benchmark network (internet) connection on server

I have a dedicated ubuntu server I rentet. Now I'm running a lot of ruby background processing on that server, that - among other things - does a lot of get requests to very small images (about 10kb) ...
0
votes
1answer
35 views

Setting up PNP4nagios - Cant find Nagios Environment

My system is configured as follows: Ubuntu 14.04LTS Nagios Core 4.0.8 Plugins @ ver 2.0.3 PNP 0.4.13 The latest apache, perl, rrdtool, etc. Nagios has been working normally, just added a remote ...
1
vote
2answers
47 views

cron job sending emails in a wrong charset

I have following command in a cronjob: */5 * * * * php /var/www/domain/yii rss/parse It outputs email in a wrong charset: Content-Type: text/plain; charset=ANSI_X3.4-1968 But when i launch that ...
0
votes
1answer
32 views

How to set UTF-8 charset in exim4?

Using Ubuntu server 14.04 how to set UTF-8 CHARSET? It's using now ANSI by default so i can't see cyrillic letters. I am using non-split config mode, so i have 2 files in /etc/exim4: ...
0
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0answers
14 views

Disable Keyboard on Ubuntu Kiosk Touch PC

I'm in the middle of deploying a series of Kiosk PC's with a minimal Ubuntu server and a web enabled Application(Rails) on it. The hardware are Shuttle All-in-one PC's at the moment. The PC starts ...
0
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0answers
11 views

Apache ErrorDocument 429 HTTP_TOO_MANY_REQUESTS unsupported

I'm trying setup the HTTP_TOO_MANY_REQUESTS status code (429) for Apache, but it doens't seems to be supported by my version of Apache when i run a configtest: Unsupported HTTP response code 429 ...
2
votes
1answer
29 views

How to find list of php files being run on my web server

Mine is Ubuntu VPS and all my sites are CMS based(Drupal, Wordpress etc) which run thru index.php. My account has been hacked several times using some exploits by placing a php files and executing ...
-1
votes
0answers
13 views

Mysql cluster - the mysqld node is not accepted by the mgmd node

I have been trying to set up a MYSQL cluster in Ubuntu. I have ndbd, ndb_mgmd and mysqld each running on their own independent machine and assigned a static ip. The ndbd node connects to ndb_mgmd ...
1
vote
2answers
29 views

chef: how do I reboot a node only if a confg file is modified

ENVIRONMENT: aws opsworks chef 11.10 and ubuntu 14.04. I'm using a chef recipe to update the /etc/dhcp/dhclient.conf file on an aws opsworks ec2 node in order to add my custom dns search suffix to ...
0
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0answers
92 views

How to debug IPsec L2TP authentication failure (Ubuntu StrongSwan client to Windows Server 2012)

I'm trying to connect via IPsec L2TP to a Windows Server 2012 server. Both the clients and the host are behind a NAT. I can connect from a Windows 7 machine without any problems, but when trying to ...
0
votes
1answer
30 views

Analyze SMART self-test for broken disks [closed]

I recently came home from vacation only to wake up the following morgon with two disks in my RAID5 array marked as faulty. I was able to start the RAID by forcing it to use the faulty disks and run, ...
0
votes
0answers
26 views

Ubuntu IPTables DROP/REJECT Rule Disappearing?

I am attempting to use iptables to manage the firewall on a Ubuntu 14.04.1 LTS. I want to restrict all HTTP/HTTPS traffic to our network (XXX.XXX.0.0/16) and all UDP/MySQL activity to localhost. The ...
1
vote
1answer
34 views

OpenVPN Hairpin Nat

I have an OpenVPN set up that looks like this: +------------------------------------------------------+ | ...
0
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0answers
22 views

Encrypted home mount for single session on Ubuntu?

I currently have Ubuntu 12.04 as my remote server and I have a purpose of keeping my important files on that server under encrypted home folder. I did this and it works; I send my files to the server ...
6
votes
2answers
111 views

Calling sync/fsync slows IO after 30 minutes uptime

After 30 minutes of uptime using Ubuntu 14.04 with an ext4 hybrid SSD I see many processes blocking IO using iotop. The root cause of this slowdown has been traced back to the Unix system call sync. ...
0
votes
1answer
13 views

Malformed Line 61 (dist parse) ubuntu 12.10

I run sudo apt-get update but it returns: E: Malformed line 61 in source list /etc/apt/sources.list (dist parse) E: The list of sources could not be read. I opened the sources.list via vim ...
0
votes
1answer
32 views

Duplicate sources.list during apt-get update

I wanted to install PostGIS on my server which already have a PostgreSQL installed. I followed this PostGIS installation manual. I inputted this script: sudo sh -c 'echo "deb ...
0
votes
2answers
69 views

rsync: mkdir “2014-11/.” failed: No such file or directory (2)

i'm write a script for automation copying file with rsync from server-a to server-b this is my script : #!/bin/bash NOW=$(date +"%Y-%m") rsync -au --ignore-existing /var/www/uploads/$NOW/* -e ...
0
votes
2answers
80 views

403 Forbidden response on a ubuntu + nginx + passenger server

I'm trying to deploy my Rails app on my Digital Ocean VPS but I'm getting a 403 when I visit the IP adres. This is the output of my errorlog: [ 2014-11-02 04:18:12.0511 23504/7f64e6a36780 ...
2
votes
1answer
152 views

How can redirect requests to my external IP address/port to a different external IP address/port in Linux without changing the source IP address?

I can use the following commands, but they change the source IP address: iptables -t nat -A PREROUTING -p tcp --dport port -j DNAT --to-destination dest_ip:port iptables -t nat -A POSTROUTING -j ...