Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.

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Xerox Phaser 3010 won't print anything

I've tried Fedora Core 18, 19, 20 and 21 (but I can't go back now, just had a chance while updating). Every time the system has no problem finding and identifying the printer. It doesn't have a PPD ...
0
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0answers
8 views

Having issues with inconsistent application of mod_rewrite rules

So I've been asked to clean up the URL's for the web app that we're currently running on apache (version 2.4.9 if so interested), but after messing around with mod re_write commands for a few hours, I ...
0
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0answers
25 views

Precision Time Protocol on AWS

We have a problem that requires a group of AWS linux servers to have the time exact by the millisecond between each other. (different nano seconds is ok, and we don't care if it is the real hour.) ...
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0answers
11 views

How to auto-start Degraded Software RAID1 under Debian 8.0.0 on boot?

If you remove a component HDD from an array, it drops into a "busy box" shell under "(initramfs)" saying something similar to "cannot mount root device" as the RAID1 array becomes "inactive". It is ...
1
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0answers
8 views

Linux kernel treating racoon's UDP socket as nonexistent

How can I figure out what's going on here? I've tried everything I know how to do short of adding printks or running a debugger on the kernel. I'm hoping somebody can spot something obvious that I've ...
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0answers
17 views

HDD AND SSD FOR webserver

I have a dedicated server with a ssd disk of 80gb and a HDD of 2tera. I want to install nginx + mysql + and all codes php in the ssd driver, and put all assets contents (more than 100GB) in the HDD. ...
0
votes
1answer
9 views

unable to setup point to point network between two openwrt boards

I am trying to setup point to point networks between two Avila boards (Processor : XScale-IXP42x Family) running Openwrt( KAMIKAZE 8.09.1) and Linux kernel 2.6.26.8. I am trying to setup two ...
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votes
1answer
18 views

Recovering data from a RAID built with fakeraid [on hold]

I have (had) a motherboard that supports (supported) fakeraid, which I used to build a RAID 1 with 2 WD Red 1TB. My motherboard died (as you would have guessed already) and now I have 2 options: Buy ...
1
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0answers
11 views

Many gettimeofday in Apache 2.4 + fcgid + centos 6.6 - Long Wait time for static files

When i perform a strace on apache process, i see many gettimeofday before & after GET request, even when Apache returns a static file like an image file. It results in a long downtime period ...
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votes
1answer
26 views

Which kinds of SSL certs there are?

When I visit eg. https://www.google.com, my web browser (IceWeasel) shows just a (grey) lock icon next to the URL. However, when I visit eg. https://www.cia.gov, a green lock and "Central Intelligence ...
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0answers
11 views

Filter Traffic Between Virtual Machines

I have a machine with Fedora 21 which acts as a host system for two virtual machines. The VMs are made up using QEMU/KVM/libvirt/virt-manager. One VM is running a webserver, the other VM acts as a ...
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0answers
19 views

Resetting root password on Slackware (software RAID)

I'm trying to reset password to root account on Slackware server (with Intel Atom on Intel motherboard and two HDDs). There is software RAID set up (devices mounted during boot: md0 - /, md1 - /usr, ...
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votes
1answer
11 views

Fail2ban, jail.conf not exist

I installed Fail2ban to my debian, but I haven't jail.conf file in /etc/fail2ban/. I have only: action.d, filter.d Where can I find jail.conf?
0
votes
1answer
23 views

mounting NFS share fails with “Stale file handle” error

How can I resolve this error and access the share? NFS server: 192.168.1.5 (ubuntu) NFS client: 192.168.1.6 (osmc) Contents of /etc/exports on ubuntu: /storage/share/media/Movies ...
1
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0answers
13 views

free smtp server on laptop, mail rely [on hold]

How to set up mail relying from laptop with GNU/Linux to outside world? I want to use different mail clients (mutt, thunderbird, mail command,…). Notebook is connected to different networks, so ...
6
votes
1answer
108 views

su: /bin/bash: Resource temporarily unavailable

Unable to switch user to postgres. Ulimit settings for postgres user is set with reasonable limits. We are not hitting max. No errors in /var/log/messages. Error: BETA -bash-4.2# sudo su - ...
2
votes
1answer
48 views

Why would a ssh connection fail to connect with whole proper setups?

Using Ubuntu Server 14.04 I got ssh server running on port 2222 (they asked it like that at building). I already got whole setups reviewed and nothing seems to be ok. This is what's set up: At ...
1
vote
1answer
29 views

iptables block net range

I'm trying to REJECT network via iptables(8) and for whatever reason it is not doing so: # cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.6 (Santiago) # uname -a Linux X ...
1
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0answers
18 views

Permissions of newly created files on NAS mount

I've mounted a NAS partition as follows: server:/volume1/public /mnt/public nfs rw,suid,nodev,noexec,auto,user,async 0 0 All available files are both readable and writable ...
2
votes
0answers
25 views

Whitelisted MAC address not getting access to NAT'd network

I'm in the process of setting up a whitelist-based router and am encountering issues when trying to grant access to clients. Follows is my current iptables configuration # Generated by iptables-save ...
0
votes
1answer
25 views

Where can I learn about apache [on hold]

I use apache web server for web development in python. The biggest problem I face with apache is setting up the environment. I can't understand thing like what is difference between /etc/apache2 and ...
2
votes
0answers
32 views

Get statuses of network printers

we are tasked with finding exactly how many pages were printed by all IP printers on a fairly large network, and then doing a lot of things with that data. There are about 15 different printer ...
0
votes
1answer
41 views

Add cronjob with bash script - No crontab for root

I have a deployment script and in it I'm trying to add a cron job. This is the code I am using which I found on stackoverflow. I'm running debian 8. # ADD CRON crontab -l > mycron echo "10 * * * * ...
1
vote
1answer
21 views

iptables 'rewrite' requests on a certain port?

Alright, my situation is basically this... I have a box that's acting as a router, with 2 interfaces, eth0 and eth1. eth1 is my uplink, that is it is the interface through which the box is obtaining ...
2
votes
2answers
50 views

Exposing private network ip

I have the following setup: Box A eth0 - 192.168.1.101 eth1 - 10.10.2.1 Box B eth0 - 10.10.2.2 Box A has internet access through eth0. I want Box B to be visible on the 192.168.1.0/24 network, so ...
2
votes
1answer
33 views

99% disk IO spikes with Percona

So we have a server that has seemingly random spikes in disk I/O, going up to 99.x% at random times and for no obvious reason, staying high for ~1 hour, and then going back down. This hasn't been much ...
0
votes
1answer
39 views

Add a field to the Linux Login

Thanks all in advance. The question is simple. I want to ask the user the reason for login in Linux Production Servers. Login prompt will ask as common for user, password and the "Reason for Login" ...
1
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0answers
11 views

Redis Sentinel false failovers

I'm having problems with Redis. I have 3 servers. Each server have 10 Redises working on different port. Also, each server has one Sentinel instance. Also, there are 5 application servers. Each ...
2
votes
2answers
32 views

ldap is working but not ldaps correctly

I'm a little lost with ldapsearch... I have to configure a cloud with AD authentication. this is working well ldapsearch -h server -p 389 -x -D 'admin.test' -w 'xxx' -b ...
-1
votes
0answers
14 views

CentOS hangs on commends cd & ls [on hold]

I have a remote directory that is mounted in fstab as follows: //1.1.1.1/some/directory /media/mydirectory cifs username=someuser,rw,file_mode=0777,dir_mode=0777,noauto 0 0 The problem is that it ...
0
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0answers
17 views

Installing latest libcurl on debian from source [migrated]

So I need libcurl (dev) on my debian 8 machine. I have two issues with this: A) apt-get install libcurl-dev gives me an error: E: Package 'libcurl-dev' has no installation candidate B) It's pretty ...
-1
votes
0answers
21 views

Best personal server hosting service [on hold]

I'm going to university next year and I want to set up a server so I can just ssh to it and run emacs to do all my stuff. If I leave a server at my parent's house it's liable to have significant ...
0
votes
2answers
39 views

Can someone find out what subdomains I'm hosting?

I have a vServer with root privileges and Debian with Apache as web server. If I create a subdomain using the config files of Apache, Disallow: / in the robots.txt file as well as telling no-one ...
0
votes
0answers
15 views

Is duplicity a reliable backup tool? [on hold]

Well, the question might seem very generic, however, I don't have any specific question about it. Can anyone here who has used duplicity for a few years for backup up production servers talk about ...
1
vote
0answers
15 views

mail send format issue in different linux servers

I have created a send mail script which will run on couple of my client servers. The mail was sent correctly in couple of servers but in some servers the format we receive is not what what we ...
-3
votes
1answer
19 views

How to download sublink contents via FTP? [on hold]

I am trying to migrate a website hosted in shared Linux server. Some of the files in the website is pointed to a folder linked(symlink) to another. I am trying to download it to a linux server. I ...
0
votes
0answers
31 views

How to build a Raspberry Pi CubeSAT? [on hold]

Guys I want to build a demo Raspberry Pi CubeSAT setup. This thing I need to setup on my home-lab to research on TrafficSqueezer WAN optimization over CubeSATs. Does anyone did CubeSATs or experience ...
-1
votes
1answer
41 views

Balanced btrfs filesystem using different amounts of space on each disk

I recently upgraded a desktop server with 2 drives (1TB+3TB) drive to one with 1x1TB and 3x3TB drives. In the process, I installed btrfs and raided the 3TB drives together, leaving the 1TB drive as a ...
3
votes
1answer
31 views

Enable HugePages on Linux for multiple services/processes

On one of my Debian machines I'm running a service on a JVM and a MySQL instance. I have enable the HugePages following various online guides but I'm having a problem. Here is my configuration: ...
-1
votes
1answer
26 views

make mysql to share all cpu

I am very new to linux server .I am using centos.Sometimes my cpu gets overloaded because of the process mysqld over 100% PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
0
votes
1answer
37 views

RAID5 rescue with LVM2 running on it

I have a RAID5-array consisting out of 6 1TB drives. Recently with hardware changes i needed to recreate the raid to rewrite the bootloader on each drive. Now the problem starts. Starting the Debian ...
-1
votes
0answers
9 views

cannot run aws cli through CRONTAB [on hold]

im running script with aws cli command the script running fine if i run it straight, outside the CRON but if im using a CRON to run it - it is not working! any idea??
-2
votes
1answer
22 views

Azure deployments feature running Linux VMs [on hold]

Is it possible to use the azure deployments (swapping staging and production) if I'm running general compute stuff on Linux? And if so, is this documented anywhere? I've looked and looked...
0
votes
1answer
42 views

bash script doesn't run properly in crontab but runs fine manually

I wrote a small script to determine the average IOPs per hour in which I later manually convert to a graph and spreadsheet for management to discuss a potential SAN upgrade for an upcoming expansion ...
1
vote
1answer
16 views

making vsftpd listen on a specific hostname

Is there a way to restrict which hostname(s) vsftpd listens to? I know it can be limited to listening on a particular IP and it fcan be limited by remote ip/hostname, but I wonder if listening only on ...
-1
votes
0answers
21 views

Unable to search a file location [migrated]

i am unable to locate files or directories while executing below commands. getting below error: $ locate httpd locate: can not stat () `/var/lib/mlocate/mlocate.db': No such file or directory
0
votes
1answer
20 views

What is causing visudo to fail with: “visudo: can't stat <filename>: Bad file number”?

We use the #include feature in the sudoers file for organizing our sudo rules on a per-application basis. Our sudoers set up looks kinda like this: /etc/sudoers -> #include ...
0
votes
1answer
29 views

Postfix blocking mail from backup MX

I have two CentOS 6.6 servers configured with Postfix for sending email. I have everything working great, SPF entries, Domain Keys and OpenDKIM configured and working, but I'm trying to perfect my ...
-2
votes
0answers
8 views

Cant connect to remote machine 'ssh_exchange_identification: read: Connection reset by peer' [duplicate]

I have right to remote server, For some reason I have to give access to my tomcat user. But by mistake I had changed user and group to tomcat7 user by below command: chown -R tomcat:tomcat / Then I ...
0
votes
0answers
12 views

When in Linux boot process are filesystems mounted from /etc/fstab? [migrated]

Question: When in Ubuntu Linux boot process are filesystems (from /etc/fstab) mounted? Rational: I defined the following shared-folders on my Ubuntu VirtualBox VM. openstack@ubuntu:~$ grep ...