Debian is a popular and influential GNU/Linux distribution. Questions here should generally be about Debian Server.

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1answer
220 views

Load balancing iptables

I am trying to use iptable for load balancing. I'm working with virtualbox. All vm (debian)are in internal networking and IPs are static. I want to route requests coming to my web server(apache2) with ...
0
votes
2answers
726 views

ERROR 1130 (HY000): Host 'host' is not allowed to connect to this MySQL server, only on slave

So I have a master and a slave in a mysql cluster, the syntonization works as it should however I am not able to connect to the slave from any host except from the server it self. I have no problems ...
1
vote
1answer
20 views

dict_pcre.so missing on debian

I've installed postfix as I normally do, using apt-get install postfix, but for some reason it's not including dict_pcre.so in the install. Is there something I've overlooked, or rather how and where ...
1
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2answers
99 views

How to emulate Windows event logging in Ubuntu?

Assume you were to have a predominantly Windows enterprise environment and that you have a number of Ubuntu servers you need to integrate into that environment, while introducing as few new enterprise ...
-2
votes
3answers
321 views

I can not do anything with mysql [closed]

Debian woke up in a bad mood. I worked on it until 9pm yesterday using LAMP. The process that I made yesterday to today was off and on the machine. When I called today mysql just does not work. Follow ...
-1
votes
1answer
43 views

How to check what application is requesting port? [duplicate]

Is it possible to check which application is requesting specific port in a debian server? I'm getting a ton of these in iptraf: x x UDP (77 bytes) from 172.16.0.2:25748 to 212.59.1.1:53 on eth0 ...
0
votes
1answer
150 views

Chrooting Shell Environment on debian wheezy

I created a chrooted user on a directory /home/jail, Inside my /home/jail are the bin,dev,etc,home,lib,lib64 and usr directories. /home/jail/ {bin,dev,etc,home,lib,lib64,usr} are all owned by ...
1
vote
1answer
70 views

Issues with quagga and zebra in virtual machine

I'm trying to use quagga and zebra in a virtual machine with debian. I installed and configured quagga, the deamon file and configured the zebra.conf file. When I try to start quagga (service quagga ...
1
vote
0answers
260 views

OpenVPN ignoring openvpn.conf, throws unrecognized or missing option

I set up openVPN on Debian, but can't start the service. [FAIL] Starting virtual private network daemon: openvpn failed! Syslog says Options error: Unrecognized option or missing parameter(s) in ...
1
vote
1answer
244 views

Xen 4.4 mixed routed/bridged network vm does not work

I have updated one of my servers from Xen 4.1.4 (Debian squeeze) to Xen 4.4.1 (Debian jessie). As xend/xm is deprecated I would like to use the xl tool kit with Xen 4.4.1. But now I have issues with ...
2
votes
2answers
33 views

Setting up wildcard mail accounts for forwarding on Debian 7

Using Debian 7 I need to setup a mail server configuration for testing purposes. This setup is not intended to "go into production" mode but we need something like this during our development process ...
1
vote
1answer
73 views

Debian/Apache2 server is blocking my IP

There is a Debian 6 LAMP server and from about one week I have a problem which occur randomly. From time to time I can't access one specific domain from one specific location (IP). Our employes from ...
3
votes
2answers
81 views

Reduce PID_MAX Safely

I have one server in a cluster that was experiencing a process table leak. Because the developer responsible for the code was unavailable for a few days I increased pid_max on the machine as follows: ...
0
votes
1answer
136 views

Debian Bridge Network Connection — Static IP Addresses

I have a PC with 3 Ethernet ports. I am able to share internet to the other two ports with internet coming in on eth1. I use the following setup on /etc/network/interfaces after aptitude bridge-utils ...
1
vote
1answer
90 views

Exim permissions when sharing a dovecot mailfolder

Using dovecot on debian wheezy, I have just set up a shared mailfolder inside another user's mail folder to be able to share the contents of this mailfolder with some other users, wthout duplicating ...
1
vote
1answer
716 views

libphp5.so is missing, dependency problems

after some updates my Debian server (running Apache 2.2) seems to miss the libphp5.so. Starting Apache leads to the error message sudo service apache2 restart apache2: Syntax error on line 244 of ...
0
votes
1answer
409 views

Unable to correct dependencies Update Debian 6 to 7

I tried updating debian 6 to 7 and getting trouble while running apt-get dist-upgrade. What I have done is: edit source.list, changed squeeze to whezzy # cat /etc/apt/sources.list deb ...
0
votes
1answer
432 views

Permissions denied for proftpd virtual users

I installed Proftpd Administrator GUI to make it easier to manage my FTP users. The problem I have is that I have to set the directory permissions to 777 to allow the virtual users saved in the mysql ...
1
vote
1answer
161 views

What is causing `skb rides the rocket` errors?

On one of our busy (virtual) Debian 6 servers we are seeing a lot of messages in the syslog like this: kernel: xen_netfront: xennet: skb rides the rocket: 19 slots We are seeing some connectivity ...
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0answers
183 views

Docker debian slow dns resolve

I got terribly slow dns resolve inside my ubuntu when using wget or curl, apt-get,... root@815340a37f0e:/# time curl www.google.com ... real 0m5.132s user 0m0.006s sys 0m0.003s When I do ...
0
votes
1answer
494 views

gnupg 'libgpg-error.so.0 no version information available'

I'm trying to compile gnupg-2.1.0 for Debian Wheezy, I've downloaded and compiled the required libraries (libgpg-error-1.17, libgcrypt-1.6.2, libksba-1.3.2, libassuan-2.1.3, and pth-2.0.7 in that ...
0
votes
1answer
79 views

Debian Secure Network [closed]

I have an industrial PC with 3 Ethernet ports (RJ45, 100 MB/s). I would like to designate one as an incoming internet connection (from the company), and the other two on a private network. The private ...
0
votes
1answer
194 views

Diagnosing an alleged trojan reported by ClamAV [duplicate]

Unfortunately I have very little Linux experience. We have an Amazon instance running Debian 7.6 and got a message from Amazon saying we were port scanning. We have hopefully stopped this by ...
0
votes
1answer
66 views

apt-get install -t testing appX VS apt-get install appX/testing

I've been trying to understand the difference between these two commands and noticed that I get different results. apt-get install -t testing appX apt-get install appX/testing Background I setup ...
0
votes
1answer
36 views

What is eating my hdd on vps server after a few minutes?

I installed iotop and I see a command that I don't understood and it uses 96-99% of my IO? This is it: find /var/www/virtual/webpult.hu -type f -path */phptmp/sess_* -cmin +24 -exec rm -v {} ; I ...
0
votes
1answer
135 views

Why port 22 redirection causes lxc containers to ssh to host?

I have a host A on which I have 2 lxc container (X and Y). I originally had port 22 on my host (A) forwarded to X. Using this configuration, I wasn't able to ssh out of the container X and when ...
2
votes
1answer
62 views

Automatically scale a Gluster cluster

I'm trying to configure a proof of concept where a server automatically gets spun up and joins a replication cluster. When the server is no longer needed, it gets spun down, and automatically removed ...
2
votes
1answer
60 views

Where to start with diagnosis of dropped network connectivity on Debian?

We have a number of Xen virtualised servers, all running Debian 6 64bit. We are having an intermittent problem where occasionally a server will stop responding over the network. When this happens we ...
-1
votes
1answer
73 views

init.d script getting error

First of all sorry for my bad english Ok, i wrote a init.d script and i don't know its true or false (i am new at this things) #!/bin/sh . /etc/init.d/someserver start () { echo -n $"Starting ...
0
votes
3answers
113 views

How to configure ssh access for an unattended linux-distro ISO image for local development env similar to accessing cloud service VM instances?

I configured Packer to build unattended ISO installs of various Debian-derived distros to VMware fusion. As I configure the VMs manually for ssh access, it times out and the build artifacts created ...
0
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0answers
47 views

Permission with cyrus

I am running Cyrus at a Debian 7 system. I want to increase security by only allowing specific services the access to the SSL private keys. I created a group "ssl" which contains the users ...
1
vote
0answers
85 views

Is it overkill to use Ganglia and Nagios for one server? [closed]

In my home I run a Plex/Data server. It basically just serves everyone's files and then Plex to play movies and such. A Teamspeak server also runs on it, but nothing major other than those tasks. I ...
0
votes
0answers
86 views

Running MariaDB Galera (5.5) Cluster on Debian failing to start

I am struggling to get a MariaDB Galera cluster running on my Debian 7 machine. I am trying to setup a cluster with two nodes both running on Debian 7. When I first install Galera I can run it find. ...
0
votes
1answer
213 views

imapd-ssl: admin: No such file or directory

I am trying to set up my VPS so I can use Thunderbird IMAP to manage my mails. First, I installed postfix and followed this guide to create an SSL certificate. Then I installed sasl2-bin and ...
0
votes
1answer
447 views

Debian unattended-upgrades does not upgrade all packages

I have installed the Debian unattended-upgrades package. It upgrades most, but not all packages. If I execute apt-get upgrade after it has run, a few more packages will be installed. Here's my ...
0
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0answers
58 views

xinetd stops working in Debian Wheezy

We have a server with a whois service running. The whois service is provided by xinetd. The configuration file /etc/xinetd.d/whois looks like this: service whois { socket_type = stream ...
1
vote
1answer
276 views

Why was an older version of Nginx installed?

I installed Nginx and PHP5-FPM and have it all working, but I noticed that I have Nginx 1.2.1 installed and not the most recent stable version (1.6.x). I also noticed that PHP-FPM had PHP 5.4 and not ...
2
votes
0answers
804 views

OpenVPN ERROR: could not insert 'tun': Unknown symbol in module, or unknown parameter (see dmesg)

I'm trying to configure OpenVPN on my Debian 7 VPN but I'm getting the following error ERROR: could not insert 'tun': Unknown symbol in module, or unknown parameter (see dmesg) I tried the ...
-1
votes
2answers
366 views

Debian 7 password recovery [closed]

During installation, I've set up a password which I have typed wrong twice, and now I'm not allowed to gain access to my root account in Debian. I'm trying to procedure like ...
1
vote
1answer
37 views

Debian Fail2ban action.d and filter.d scripts

I have a debian wheezy server on which I use Fail2ban that was loaded with the package installer. I noticed that while the version on my server (0.8.6-3wheezy3) is current, it does not match up with ...
0
votes
0answers
63 views

uWSGI suddenly won't start again after server crash on Debian

After my server crashed i am unable to start uWSGI again, and keep getting following errors on unlink() and bind(). I start my service as root, so it makes it even more strange. Sun Nov 16 15:25:24 ...
1
vote
1answer
311 views

“apt-get -y upgrade” in cron task runs but does not upgrade the system

This server runs Debian 7 and I'm facing a big mystery. Here are my cron tasks: $ sudo crontab -e 42 15 * * * apt-get -y update >> /var/log/my-apt-update.txt 52 15 * * * apt-get -y upgrade ...
1
vote
1answer
132 views

Debugging frozen Gnu screen session?

We've been using GNU screen on our jump box to have ssh sessions open to multiple hosts within our private network. One window per host. Recently we've built a new environment and are experiencing ...
5
votes
2answers
817 views

Confused about alias_maps and virtual_alias_maps

I have already re-read the docs on this as well as other posts here and this is still very unclear to me. I have been testing various things to understand the difference between alias_maps and ...
2
votes
3answers
64 views

What functionality does smartd lose when disabling state saving or attribute logging?

I'm trying to let my backup server have its disks in standby as often as possible. Outside of smartd or actual backup usage, the disks currently spin up once per day (various cron tasks). smartd, by ...
0
votes
1answer
36 views

How to setting SNMP in Debian 7?

I have a problem when installing snmpd in debian 7. Smpd can not be accessed from outside (I use PRTG), I've set rocommunity to public, but not working. I am looking for a solution on google, but I ...
3
votes
1answer
116 views

Debian staff group causes problems

We have an (old and grown) infrastructure of linux machines (mostly debian). For user authentication we use LDAP where we have defined several groups with different access rights. Unluckily one of ...
0
votes
0answers
66 views

Using Xenlight with libvirt in debian, Unable to configure listen with remote libvirt

I am using libvirt 1.2.0 with xen hypervisor 4.4 in debian server. I am facing error when I try to connect remotely with other libvirt using TCP or TLS. I couldnt make libvirt to listen to the port. I ...
2
votes
2answers
165 views

Backup Entire USB Drive Containing Bootable Partitions in Debian [duplicate]

What's the best way to backup a USB drive with bootable data on it? For instance, I have what's called an ESXi server on a bootable USB, it's basically a linux variant with multiple partiions. ...
-2
votes
1answer
79 views

How to get all the Debian CD ISO files to Blu-ray [closed]

There is a machine running Lenny without raid. It does pose a problem in case of HDD failure. Safety plan was like this: Install Lenny on clean disk of same properties, then copy/replace all the ...