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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41 views

tcpdump freezes and not capturing properly without internet connection

When I don't have any internet conncetion and I want to capture network between local computers, tcpdump acts like this: 1.I start tcpdump using following command: tcpdump -ixenbr0 2.After I run ...
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0answers
56 views

Can not connect to OpenVPN server from LXC container

I can't seem to connect to an OpenVPN server from an LXC container. I have spent some time searching around and tried the suggestions many have posted but I still can't seem to get this working. I was ...
2
votes
1answer
92 views

Ansible fails to restart service - why?

I'm trying this on AWS EC2 instance running Ubuntu 14.04. I have a task that notifies a handler. When the handler is run I get an error. I'm having trouble understanding the error message and ...
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1answer
42 views

Can't remove forced HTTPS redirect from Nginx?

I had originally setup my Nginx configuration to automatically redirect HTTP to HTTPS. Due to my work security policy and Cloudflare integration, HTTPS will not resolve inside my network. I'd simply ...
0
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1answer
44 views

Installing tablesnap

I'm trying to install tablesnap in my Cassandra servers, following what I have found in the Jeremy Grosser's Github repo tablesnap but I am not able to do it. I'm not a system administrator and I'm ...
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2answers
64 views

/etc/init.d/apache2 file is being log rotated

I have monitored some strange behavior. Every week at logrotate process time, the apache2 daemon script /etc/init.d/apache2 is being rotated as if it was a log file. The first week it created another ...
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0answers
151 views

Ubuntu server 14.04 installation on HP Proliant Gen9 Server

Our HP Proliant M150 Gen9 Server with hardware RAID was delivered yesterday. We wanted to install Ubuntu Server 14.04, however the system could not boot after installation. We've tried a lot of ...
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0answers
75 views

How to get git repository from Jenkins on Linux using ssh user name and password

I installed Jenkins and started successfully in EngTemp_server which Linux mint. I installed git plugin and restarted Jenkins I created a new project called Devices and for source code management I ...
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0answers
25 views

Passenger tmp file not found

2015/06/08 18:15:07 [crit] 6450#0: *28773 connect() to /tmp/passenger.1.0.6428/generation-0/request failed (2: No such file or directory) while connecting to upstream, client: x.x.x.x, server: ...
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votes
1answer
80 views

No space left on device error

I can no longer generate new columns in my database. My stack is below. I am new to managing my own server and am unfamiliar with Apache, Ubuntu and AWS. Currently I am receiving an error saying ...
2
votes
2answers
166 views

Trying to connect to servers in a remote lan with softether vpn client and iptables nat ip_forwarding

I have implemented a softether vpn server on one aws server connected to other instances in a LAN. I can ssh into the server with ssh myname@10.0.1.10 without problem. I followed this guide My goal ...
1
vote
1answer
92 views

How to fix Docker build error

I'm trying to create an apache + php docker container, but I am getting a build error. Here's my dockerfile, FROM ubuntu:14.04 MAINTAINER Mizanur Rahman RUN apt-get update RUN apt-get -y upgrade ...
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1answer
52 views

Ubuntu 12.04 LUKS/dmcrypt disk to disk copy freezes

I have 2 external USB hard drives encrypted with LUKS in Ubuntu 12.04. Generally, the both drives are very slow with LUKS/dmcrypt, e.g. 7 MB/s for both read/write, but I could live with this. ...
53
votes
1answer
3k views

Can't enter the letter 'e' over ssh [duplicate]

Right now I am experiencing some very, very weird behaviour on a Ubuntu 14.04.2 LTS server I am managing. Connecting to the server over ssh either from cygwin(mintty) or a terminal on a Linux ...
-1
votes
1answer
16 views

How to troubleshoot connection error from windows to unix?

Sidenote: I am still trying to fix this issue. I have a ubuntu server running bind on 192.168.0.2, listening to :53 # netstat -tulpn //output shortened tcp 0 0 192.168.0.2:53 0.0.0.0:* LISTEN ...
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1answer
58 views

Steps to move an ubuntu 14.04 server install disk (damaged) with lvm to a new disk on the same system

Need some clarification on how to move the following : I have a Ubuntu 14.04 server install with LVM and its disk was failing. I have managed to clone the disk without any errors to a new disk of same ...
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1answer
32 views

Setting up VirtualHost - All Point to same host

I am trying to set my domain yfcclub.ga to folder /var/www/yfc while leave localhost and all other domains to /var/www/html in ubuntu. My vhosts.cof file is: <VirtualHost _default_:80> ...
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1answer
209 views

Ubuntu 15.04: Elasticsearch service doesn't start

I followed the first part from the tutorial here to install Elasticsearch. I didn't install java because I already have that installed with other java programs running. sudo service elasticsearch ...
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1answer
72 views

KeepAliveD + HaProxy - Only the master should run an active HaProxy service

it is possible to configure keepalived so that only the master server are running an active service from haproxy? Currently LB1 and LB2 (both with keepalived and haproxy) works great. But sometimes ...
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1answer
65 views

Bare Metal Provisioning [closed]

For bare metal provisioning of: VMWare ESXi Ubuntu CentOS Are Ubuntu MAAS and Spacewalk the only Open Source options for bare metal provisioning or are there other non-proprietary options? The ...
1
vote
1answer
27 views

Dovecot not used as LDA by Postfix

I try to set up a mail server on Ubuntu using Postfix, Dovecot and LDAP. So far I can send and receive mails with Postfix and can connect to Dovecot via telnet (port 143) with an LDAP user. As a next ...
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votes
1answer
52 views

Telnet Port 25 responds via localhost but not remotely

I just set up Postfix + Dovecot on Ubuntu and it doesn't seem to behave 100% as expected. If I run telnet localhost 25, I get: Trying ::1... Connected to localhost. Escape character is '^]'. 220 ...
1
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1answer
57 views

if secondary dns server is down ubuntu can not resolve

I am experimenting with two local DNS server. When I take down the second (or the primary) dns server, I can not resolve any domain name. Using host command or nslookup I get time out error : ...
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4answers
86 views

When does an upgrade update the Ubuntu kernel?

I'm a little confused by Ubuntu/Linux kernel updates. Coming from a Windows background I sort of expect all updates to be available via the update manager, in the case of Ubuntu apt/aptitude. Yet if ...
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0answers
103 views

libcurl.so.4 no version information available

curl: /usr/local/lib/libcurl.so.4: no version information available (required by curl) This is the error I am getting. This error has not stopped any scripts or apps from running or preforming their ...
0
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1answer
22 views

Mod Rewrite not working at all, everything else in the .htaccess works correctly

This must be the 100th time a topic with this name has been created however this time its slightly different. I am trying to use mod_rewrite to enable Short URLs on a MediaWiki install. I have added ...
0
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1answer
64 views

How to import postgresql file on Linux with space in path?

If I try to import an sql script with a space in path, the file is not found. mypsqluser=> \i /home/markus/Documents/Projekte/My App/Installation/server_sql_script.sql ...
0
votes
1answer
20 views

Server-wise what do I need to do to serve the same app for different domains? [closed]

I'm setting up a Rails app behind passenger ad Apache (or Nginx). What I want to do is server the same app in multiple domains. The app will be a multi-domain app and it'll have some specific logic ...
1
vote
1answer
42 views

How to add disk back to RAID and replace removed

Received a message that RAID went into degraded state: Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sda1[0] sdb1[1] 524224 blocks ...
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0answers
29 views

Apache2.4 Ubuntu: Virtualhost redirects to localhost

I wanted to set up a virtualhost for my apache2 running on my computer. So when I browse to: "invision.jan.pcsg" I get the page contents/folder structure from "/var/www/html/invision" This is the ...
2
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1answer
28 views

How do I download a new Ubuntu release without installing it?

I want to upgrade - in this case, from Ubuntu Trusty to Vivid (going through Utopic if necessary) but I'd really rather do the upgrade in two parts, doing a dry run to get all the packages locally ...
0
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1answer
68 views

How to use the PM2 instance that's already running

I'm trying to use PM2 process manager. I'm installing it with ansible and the franklinkim.pm2 role It works, it launches my node app and if I manually kill the node app I see that PM2 relaunches it ...
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2answers
59 views

Ubuntu Apache Virtual Hosts directing to wrong directory?

I am running an Ubuntu 14.04 LTS server with Apache installed. I have 3 Virtual Hosts set up, with another Default Server to catch all other requests not taken care of. The Default Server has a ...
0
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1answer
41 views

Ubuntu 14.04 having two postgres server, removing one

after installing postgres using apt-get and adding the repo for 9.4, I have two versions, 9.3 and 9.4 running. How can I remove 9.3? apt-get purge removes both actually. Thanks ins advance
0
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1answer
161 views

ERR_SSL_VERSION_OR_CIPHER_MISMATCH on Ubuntu

I'm running wordpress on a Digitalocean VPS with cloudflare installed. My ssl was working perfectly till a few days ago when a buch of clients informed me they received the following error when ...
0
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0answers
16 views

PowerEdge 1950 II fault server freezed

Server is a PowerEdge 1950 II 2x Intel(R) Xeon(R) CPU E5345 @ 2.33GHz 8x DDR2 FB-DIMM - Synchrone 1024 Mo log says: Tue May 26 22:56:04 2015 Multi-bit memory errors detected on a memory ...
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0answers
24 views

Beanstalkd queue with supervisord opening too many FIFO files

I'm running a Laravel queue job called "webhooks" using beanstalkd and supervisord on my Ubuntu server. I can see the job properly running with process ID 4403: webhooks ...
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0answers
29 views

corosync/pacemaker “stale” state after a week of running

I have a simple 3 node pacemaker/corosync setup. Ubuntu 14.04.2. 3 nodes, 2 resources - IPs - configured. ii crmsh 1.2.5+hg1034-1ubuntu4 all CRM ...
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0answers
16 views

find user's scp history [duplicate]

I am using an Ubuntu Server over an AWS instance. To find out the scp history on server I can check the .bash_history file cat .bash_history | grep scp But, does the server maintains a log of all ...
0
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1answer
69 views

iptables slow down connections

When I enable iptables (v4/v6) for my server, every connection like ssh, imap, smtp, http, https and so on are slow down so if I try to connect to ssh, it tooks up to 30 (!) seconds. The imap service ...
0
votes
1answer
75 views

How to create a swap for Azure Ubuntu VM?

I have read quite a few posts on this, but I am still unsure about the correct approach, assuming: I have a default Ubuntu 14.04 LTS VM created by and running on Azure, which doesn't come with a ...
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0answers
39 views

Having trouble with PHPMyAdmin on Ubuntu

I'm having trouble getting PHPMyAdmin to run on our new Ubuntu14.04 LTS servers at Linode where we migrates sites from CentOS6.02 using VirtualMin/WebMin to back up and restore. PHP is fine and our ...
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0answers
39 views

Apache configured as mpm_worker - why it still shows as mpm_prefork?

I believe that I properly configured Apache MPM as worker under Ubuntu 13.10, including PHP-FPM and FCGI, and disabled mod_php. When I run top I can clearly see multiple Apache (~2-3 MB) and php (~ ...
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0answers
34 views

Changing value of tcp_fin_timeout in unix machine

I was looking at this article in which they have mentioned how to increase two property for better performance of application if we see lot of TIMED_WAIT connections My question is: if I modify ...
0
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1answer
28 views

Ubuntu DHCP Server not assigning itself an address

I am setting up a virtual environment inside an ESXi server. I have a version of Ubuntu Server running isc dhcp. When the server boots up I issue the command ifdown eth0 followed by the ifup eth0. ...
0
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1answer
89 views

run PHP file from shell script

I have never added a cron job and am not much use with shell either... My chosen cron directory is /etc/cron.daily/ all I need my script to do is run a php file daily. I would be nice if it ran at ...
3
votes
2answers
144 views

How to optimize Apache speed for serving static content?

I'm well aware ngix is much better for static content, but I can't use it. Otherwise I have full access to my server (VPS). I've found numerous articles and posts about optimizing apache, but it's ...
0
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0answers
57 views

Cannot access apache2 and tomcat running on my ec2-instance

My ec2 ubuntu instance has apache2 working on port 80 and tomcat working on 8080. I'm not able to access them from my browser, i checked the access.log for apache2 it doesn't show the request coming ...
1
vote
3answers
40 views

Ubuntu / iptables: Using a server as middle-man to talk to firewalled server [duplicate]

I have a situation where I need to communicate with an API that only allows connections from one particular IP. So api.example.com accepts connections on port 443 from whitelisted-ip I want to be ...
4
votes
2answers
320 views

Is /etc, /home and /var enough for a Ubuntu server backup?

From my experience, /etc, /home and /var holds the user created files and the others (/usr, /bin, etc) are installed by packages. Are there other directories that I should backup besides these three? ...