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

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Azure deployments feature running Linux VMs

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...
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1answer
16 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
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1answer
9 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 ...
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1answer
13 views

Unable to search a file location

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
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1answer
10 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 ...
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0answers
17 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 ...
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0answers
7 views

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

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 ...
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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 ...
2
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1answer
18 views

LUKS full disk encryption use keyfile instead of passphrase

I have enabled LUKS full disk encryption on an LVM volume while installing centos6.6, however it asks for a passphrase every time the OS is rebooted. I am now trying to use a key file according to ...
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2answers
22 views

Chroot user to an existing folder witch parent owner isn´t root

We have moodle installed on our company and due to big SCORM packages + slow conection + proxy, I usually upload them with SFTP with my root user. Now, I want to give users a way to upload files by ...
3
votes
2answers
169 views

NTP running, server time is wrong on VM

The server time was 7 hours off (instead of 10AM it was 3AM, even though date showed the correct timezone). The output for ntpq was: $ ntpq -p remote refid st t when poll reach ...
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0answers
4 views

Does the Linux kernel really use 601 MB of RAM on a 16GB system? [migrated]

I'm developing a compute cluster and I'm trying to determine the maximum amount of RAM I can give to a single process. On a machine with 16GB of ram, the answer is that I can allocate (and touch) ...
2
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0answers
25 views

mdadm Software RAID1 with GPT on Debian 8.0 amd64 - Does not boot on disk removal [migrated]

INTRO: I have spent countless days attaching/detaching MOLEX->SATA power cables, rebooting machines and trying hundreds of edits and commands. I am on the verge of desperation and desperately in need ...
0
votes
1answer
20 views

Script to check mobile resposive [on hold]

My pc runs Linux. I have used the ET-CS script to check if a site is up or down. What I would like to know is, can this script be adapted to check if a list of sites are mobile responsive or are ...
0
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0answers
5 views

firewalld allow connections to a port for only a subnet of IPs [duplicate]

I am on Fedora 21 Workstation on my PC. By default, all ports through firewalld are open on Fedora 21. When I open a service accessible through a port (such as a CouchDB or a SQL server or a simple ...
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0answers
9 views

How to disable a cfengine promise temporarily on a single client

I'm wondering what's the best, fastest, easiest way to temporarily stop, in an emergency, a single cfengine client from performing a certain promise, without needing to change anything on the cfengine ...
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0answers
20 views

size of Network Packet in linux [on hold]

I would like to understand what is the default network packet size for an inbound and outbound in linux. What it has to do with MTU on the nic. Does a NIC speed determine the packet size or kernel ...
1
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0answers
10 views

How to properly automount tmpfs inside encrypted home folder on login?

I have a user with encrypted home folder which is automounted on login with pam_ecryptfs module. I would also like to have several folders automounted as tmpfs using local configuration file from ...
0
votes
1answer
28 views

Can't connect to MySQL server on '198.211.37.xx'

For last couple of days I have tried many things to solve Can't connect to MySQL server. I would like to describe everything that I did so far. Create a mysql user and GRANT ALL Privileges. Bind ...
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0answers
15 views

Putting remote Linux server in local VPN

I have a VPS running Fedora 21, that I'd like to automatically log in to my local network via VPN. My local router is running pfSese, so my options are IPsec, L2TP, OpenVPN, and PPTP. Currently I use ...
-3
votes
1answer
31 views

system halt twice a week [on hold]

My system stop responding almost twice a week. following message is found in log, Apr 27 04:44:37 Helpdesk shutdown[29686]: shutting down for system halt Apr 27 04:44:39 Helpdesk modclusterd: ...
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2answers
24 views

Discover webserver on a network [on hold]

I am building a small linux box, which will be running a webserver only. The purpose of this little machine is to be put into a small, temporary network at a temporary location with no access to the ...
3
votes
3answers
147 views

What is a core, and will purchasing more cores for my VPS speed up page load times?

I recently purchased a premium WordPres plugin called Hide my WP. I planned on using this plugin for my nonprofit organization's website, which is a multisite WordPress installation with an SSL. ...
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0answers
18 views

Wake on Lan - Install a client on a Linux machine [migrated]

this might seem obvious or stupid to somebody, but I can't find anything that helps me yet, besides the fact that I'm not a Linux user. I've got 2 NAS boxes (Iomega, now Lenovo) IX4-200D and ...
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1answer
30 views

Linux how to map the auth logs? [on hold]

I saw a picture a while ago that someone took everything from his auth log and made a map of login attemps. Is there software to do this? Please note i'm only using a terminal.
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0answers
28 views

How to configure HHVM with Nginx compiled from source?

I installed Nginx 1.8 (compiled from source) on Debian 7: cd /opt/ sudo wget http://nginx.org/download/nginx-1.8.0.tar.gz sudo wget http://labs.frickle.com/files/ngx_cache_purge-2.3.tar.gz sudo tar ...
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0answers
6 views

Kerberos transitive trust and Auth to local

I need to connect users belonging to a realm to services that resides to another realm. These two realms are not trusted together, but realm A (where users are) is trusted by realm B. This one is ...
1
vote
1answer
26 views

How to add a harddisk back in raid10 array?

I have a harddisk that is out of raid array. I wanted to create the partition table on sda basesd on the sdb table and I issued this command: sfdisk -d /dev/sda | sfdisk /dev/sdb --force I know ...
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0answers
31 views

Mail issues on server/website [on hold]

A website on a VPS is sending emails using a @example.example.org (note the extra example) and getting stuck in spam/trash even though we have and the correct filters in our domain manager. I'm ...
1
vote
1answer
19 views

postfix/dovecot says “postmaster_address setting not given” but it is

I'm trying to configure postfix and dovecot to work together with virtual domains stored in MySQL, but I keep running into this whenever mail is passed from postfix to dovecot. Apr 26 11:54:40 smtp ...
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0answers
11 views

overlayfs: remount doesn't change parameters

I'm trying to mount -o remount an overlayfs in order to change to an updated lowerdir: $ mount -t overlay ovl /mnt -oworkdir=/.work -oupperdir=/upper -olowerdir=/lower $ mount -t overlay ovl /mnt ...
3
votes
1answer
24 views

How to recover Symantec Backup Exec backup via Linux?

I have a tape backup from a defunct server that was created via Symantec Backup Exec version 10.1.5629 on Windows. Is it possible to extract the backup from this using some standard or open source ...
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0answers
27 views

Route Traffic For Specific IP Range Through Specific Network Interface

On Ubuntu 14.04. I need to route the traffic to specific IP ranges though a specific interface. route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref ...
0
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0answers
6 views

Linux Mint system clock is days ahead after an overnight laptop suspend [migrated]

I'm a long-time Ubuntu user, who recently started trying out Linux Mint on a laptop. This is not a dual-boot setup, Mint is the only OS on the machine. When I suspend the laptop (i.e. close the ...
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0answers
25 views

Using Export in Mac OS X [on hold]

I am a developer using Linux on Mac OS X. I am building an app using MONO. I can run my app if I first run export MONO_MANAGED_WATCHER=disabled on the command line. My problem is, I have to run this ...
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0answers
25 views

SNMP agent configuration windows/linux [migrated]

i need to retrieve information via snmp and then use this information to create some sort of graphic application in Unity. I find the SnmpSharp library http://www.snmpsharpnet.com/ i create a little ...
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0answers
15 views

WebApp won't compile in CentOS 7 server, but does compile in Windows

I am getting a "resource marked as read-only" error when I try to compile a war file on a CentOS 7 installation. But the same eclipse project does not throw any compilation error on Windows after I ...
1
vote
1answer
13 views

Nginx alias with trailing slashes

I have a sub-site working under a parent website like this: http://example.org/sub-site (http://example.org/sub-site/ works too) Everything seemed to work well, including : ./sub-site/sub-section ...
-1
votes
1answer
26 views

Linux - Print specific line from output [on hold]

I am used to working with single line output and can use $1 $4 $8 to specify certain items in that line, but I have never worked with multiple line outputs and would like to just print one line ...
0
votes
2answers
28 views

How to change the group, excluding a directory

We are using AWS S3 Buckets, and when you attempt to do a recursive chgrp, it churns on the S3 bucket (essentially) indefinitely. Is it possible to execute chgrp while excluding a directory?
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0answers
33 views

Puppet or chef script to set up an Ubuntu server [on hold]

Are there any Puppet/Chef/Other scripts to automatically set up and configure Ubuntu 14.04 with everything needed to host a website securely? I have looked on Github, but nothing seems very popular ...
1
vote
1answer
25 views

Shrinking LVM Volumes

We have a Synology RS3614rpxs NAS head containing (9) 3TB hard drives in a RAID 6 + 1 hot spare. The storage became exhausted and we added an expansion chassis where 5TB hard drivers were installed ...
-1
votes
0answers
10 views

What is the windows server HW platfom (24 cpu, 2.3ghz server-2 core ) equivalent to Linux VM? [duplicate]

Wanted to migrate Windows Server HW to Linux NM Server. Windows HW 96G RAM 2.3ghz, 2core 24 CPU Hyper threading is enabled What is the equivalent HW requirement for ...
1
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1answer
27 views

AWS Ubuntu 14 - Can't SSH After Reboot

Had an issue where an instance became unresponsive and was forced into a reboot. After the reboot I could ping the server but could not SSH into the server. Ultimately I created a new instance and ...
1
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1answer
50 views

Update version of network manager

In shell on sever I see following error after launching several commands: Error: nmcli (1.0.0) and NetworkManager (0.9.9.1) versions don't match. Force execution using --nocheck, but the results are ...
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18 views

Auditing user commands with ip address

i have to set auditing system to my firm's server. Server runs Debian Wheezy. I'm working on "auditd" system on server. I have only two rule. # Log any command run on this system -a exit,always ...
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0answers
23 views

Cross-platform filesystem watcher, running in VM watching host?

Can anybody suggest a way to copy data from a VM's host to the VM[0] in way that is cross-platform across hosts (i.e. Windows, Mac or Linux)? Right now, I'm achieving this by running rsync in the VM ...
-3
votes
1answer
22 views

<service-name> dead but pid file exists [on hold]

A service has crashed on my server and when I do service <service-name> status I get dead but pid file exists, then if I try to stop the service I get Shutdown <service-name>: bash: ...
1
vote
0answers
4 views

libexecdir in systemd .service file?

I'm deploying something to machines (internally, not for public consumption) using RPMs. Now, in RPM .spec files there's the %_libexecdir variable. The package deploys a service binary in that ...
0
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0answers
18 views

SFTP chroot jail not working

Trying to follow this tutorial but for Arch Linux. /etc/ssh/sshd_config: # override default of no subsystems #Subsystem sftp /usr/lib/ssh/sftp-server Subsystem sftp internal-sftp ...