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

learn more… | top users | synonyms (1)

0
votes
0answers
22 views

Branch office replicated file system

I'm looking for something that can replicate file systems between multiple branch locations. Our file servers currently run CentOS 7. I feel like there has to be a better solution that what we're ...
0
votes
1answer
51 views

Samba file server on Windows Domain can't authenticate users - gives “credentials chain check failed”

I have two TurnKey Linux Fileserver 13 (basically Debian 7.3) running Samba to share folders on our mostly-Windows LAN. Samba is configured to authenticate users using Active Directory on our domain ...
0
votes
1answer
12 views

KVM Guest not powering back on

I have recently setup a homelab with a KVM hypervisor: qemu-kvm-1.5.3-105.el7_2.3.x86_64 libvirt-1.2.17-13.el7_2.4.x86_64 I have almost everything working the way I want it (networking/vnc), but ...
1
vote
0answers
36 views

Windows Active Directory and Linux integration: new AD Group does not show up in Linux

In my organization, the support team has created a new AD group for me but it does not show up on any of the nodes in our cluster(using RHEL). I went through this article to understand Windows and ...
1
vote
1answer
52 views

How do I increase the open file limit on Linux?

I am using CentOS 7. I found out that the current value can be seen using $ ulimit -a (look for open files). Or just $ ulimit -n Then I try to edit these limits by editing the file at $ vim ...
0
votes
0answers
12 views

Composer works as Common User but not root

When I run 'composer' as a common user, composer runs just fine. However if I run 'sudo composer' I receive a command not found message. When I enter 'sudo /usr/local/bin/composer' it works just fine. ...
1
vote
0answers
12 views

L2TP/IPsec with certificates: INVALID_KEY_INFORMATION

I'm trying to configure a L2TP/IPsec client on Centos 7, the packages are: libreswan-3.15-5 xl2tpd-1.3.6-8 The server is MS Windows I cannot bring up the vpn. Error are as follows: ● ...
2
votes
1answer
42 views

Laravel EC2 Nginx PHP 7 scripts downloaded instead of executed

The php scripts are downloaded on Amazon ec2 server with nginx installed instead of being executed. This is my nginx conf file: user nginx; worker_processes auto; error_log /var/log/nginx/error.log; ...
1
vote
0answers
20 views

Does the WD Red Drive overheat when placed in a plastic HDD enclosure with small ventilation at the bottom?

I have Odroid-U3 as my multipurpose server. Initially, I used a portable hard disk drive where I frequently encounter disconnections and reconnections. My friend recommended to me to use hard drive ...
2
votes
0answers
23 views

How to interpret the contents of /lost+found after serious filesystem corruption?

I am trying to work out whether some serious filesystem corruption is recoverable or not - however, I am struggling to find a definitive description of what i am seeing in /lost+found anywhere on the ...
0
votes
2answers
56 views

How can I install Android Studio and the Android SDK systemwide on a Linux system?

Android Studio really seems to prefer to behave like it's running on a single-user system. Is there a good way to install it and the Android SDK on a Linux system in a way that minimizes the amount ...
0
votes
0answers
25 views

Windows utility list compatible devices with linux

I would like to known if some machine is compatible with the Linux kernel (if device modules are available) and which distribution is recommended (one that by default supply the required kernel and ...
2
votes
0answers
34 views

Can't find users logged in with notty via the who command

I was curious if anyone had any ideas why when I run who and who --all, I still cannot see users logged in under notty? See below: [cbennett@lstn ~]$ who --all system boot 2016-04-25 ...
0
votes
1answer
25 views

Getting error in sendmail nameserver not found

I added this code to sendmail.mc file: dnl # Uncomment and edit the following line if your outgoing mail needs to dnl # be sent out through an external mail server: dnl # ...
1
vote
0answers
32 views

Is it possible to setup ftp server in linux without the superuser privileges? [closed]

There are a lot of articles about setting up ftp server in linux. Most of them use vsftpd. This program takes configures from files from /etc directory so u can't configure vsftp not as root. So I ...
0
votes
1answer
25 views

Joining two layer-3 interfaces for failover

I have a Linux machine with two USB modems each with its own SIM card and public IP address. One of the modems may lose connectivity at some point and I want the connections to be as resilient as ...
1
vote
0answers
18 views

Chef Server opscode-reporting with wrong Postgresql credentials

I'm using Chef 12.5.0 and I recently discoverd that after an update the reporting isn't working anymore. So I executed: opscode-reporting-ctl reconfigure and got the following error: FATAL: ...
1
vote
1answer
37 views

How to use pNFS in NFSv4.1

As I know, pNFS is an extended protocol over NFSv4.1. So, I have two questions: How to use pNFS in NFSv4.1? Is there any special requirement for kernel version in server side?
0
votes
1answer
56 views

Connection refused to local port

I'm trying to setup a dedicated server for Rust (a game) on an AWS EC2 VPC instance running Ubuntu 14.04 64-bit. Following the instructions, I got the application started and listening on its default ...
-1
votes
1answer
25 views

How can I only allow TCP connections for 1 port using iptables on Unbantu? How can I also set a maximum packet on a connection?

I'm running a server for public. I just want to allow TCP connections and I want to limit the packet to prevent ddosing a bit and setting a maximum IP/new connections per seconds with iptables. How ...
1
vote
0answers
24 views

ifconfig output different for non-root user

we use a montoring system to capture network traffic. the output as root user is fine: eth0 Link encap:Ethernet HWaddr 00:1E:67:E6:D6:FE inet addr:149.56.19.13 Bcast:149.56.19.255 ...
-6
votes
1answer
58 views

Someone else domain is pointed to my IP [closed]

I've just done a routine reverse IP check. And saw that 2 domains are pointing to my IP. This is getting me really worried, as I was told they could be preparing to attack my server. What exactly ...
1
vote
0answers
53 views

samba4: session setup failed: NT_STATUS_UNSUCCESSFUL

I am having trouble with my samba4 installation. For a long time it has been working without issue. I use webmin to configure users and although the module is only supposed to support samba3 it works ...
1
vote
1answer
24 views

dd: zero-out all the remaining unused space of a drive

In the second answer of this question about disk cloning with 'dd', I read this command: dd if=/dev/zero of=/mnt/hdb/zero It is supposed to write '0' in the unused space of drive 'hdb', however I ...
2
votes
2answers
44 views

Check if iptables rules are working

I have three virtualboxs. 1) Virtual machine VM-A that works as a router with two interfaces: eth0 - 10.160.10.254 eth1 - 172.10.0.254 2) Virtual machine VM-B that works as an internal network ...
2
votes
2answers
60 views

Is order of network routes important in Linux?

On one of my web server the loopback route is in 2nd position and usually it is in 3rd position on other server when displaying the routes: >ip route show Results on what is displayed on one ...
1
vote
2answers
33 views

Make user or group own port

In some situations a web application will talk to clients through a reverse proxy (e.g. Apache with mod_proxy) where the reverse proxy is listening on port 80 and the web application is listening on a ...
0
votes
0answers
8 views

Joomla 3.5 VServer write

I am using Joomla 3.5.1 and copied it from my existing Hosting to my new Vserver. I can access the /administrator login etc. also the frontend looks nice. I wanted to upload an extension (I corrected ...
0
votes
1answer
28 views

Nginx: Map URL to different path

I would like to have my server serve files from a different path to the specific url. Example: www.domain.com/some_catchy_name/image.jpg should serve file from ...
0
votes
1answer
21 views

How to suppress file output from aws s3 ls?

I am using the aws cli to summarize the number of files and the total size of an s3 bucket using the following command (documentation): aws s3 ls s3://mybucket --recursive --human-readable ...
0
votes
1answer
33 views

Ubuntu - SQL Server 2012 - Microsoft ODBC Driver 13 - Error: 18456, Severity: 14, State: 8

I have been attempting to get "Microsoft ODBC Driver 13 for SQL Server" running in Ubuntu for two days now, and I am out of ideas / have exhausted Google. My test machine is a vagrant VM, and these ...
0
votes
1answer
39 views

Running LAN services on a router/firewall [on hold]

So I work in a company where we have a linux machine acting as a router/firewall, and I like all the control you get in this kind of setup compared to having a consumer grade router that ISPs usually ...
2
votes
3answers
90 views

How to limit memory for a service managed by systemd

I am aware of ulimit and I know how to limit memory for a process that I explicitly start, or start using a script. But in this case I have a service that is managed and launched by systemd. How can ...
0
votes
0answers
10 views

How to make a local interface, accept a packet that's coming from another local interface which is destined to the first one

before starting, let me say that I'm not talking about ip forwarding. ip forwarding is enabled and working. My problem despite being hard to explain in one sentence, is rather simple, and yet it seems ...
0
votes
0answers
29 views

Redirect locally generated HTTPS traffic through external proxy

I have a configuration like this: Internet | Public Zone | Private Zone IP x.x.x.x |<--- Forward Proxy / WebCache | <--- Linux Server (RedHat) ...
2
votes
0answers
14 views

Running Jenkins Slaves on old operating systems

I have a (quite old) Jenkins installation that I'd like to upgrade. Unfortunately, some jobs require to be built on an old operating system which cannot run Java 7 and hence cannot run the slave.jar ...
2
votes
1answer
28 views

Weird smartctl output. Is my disk in danger?

I have a disk, that gets me kinda weird smartctl output. I have never seen such large nubmbers on other disks. Does anyone now how to interpret these ? Is the disk likely to be faulty ? SMART ...
0
votes
0answers
20 views

Ran out of inodes because of something happening in the meteor packages folder

I'm running meteor in a centos server (not production) where I've installed meteor, this meteor app rebuilds everytime I pull the code from git. The server ran out of inodes and I've realised the ...
2
votes
0answers
29 views

Any versions of ModSecurity that works with recent versions of Nginx?

I'm building Nginx and ModSecurity together in order to use the OWASP- Core Rule Set Project. According to the modsecurity download page, the latest version of modsecurity (2.9.1) is not stable when ...
0
votes
2answers
34 views

Batch Shutdown Linux Machines from Windows Server

I have 20 Ubuntu terminals that run RDP sessions from our RDS server (Server 2012R2). I want to shut down these machines and night and start them up again in the morning remotely, preferably from ...
1
vote
1answer
37 views

How to optimize throughput on a linux NAT/router?

I am trying to use an old Fujitsi RX300S2, with a quad core Intel Xeon CPU @2.80GHz as a Gitabit NAT router, it has a dual gigabit NIC on board over PCI-X. The router will also forward multicast ...
2
votes
1answer
37 views

LDAP Remote Login Logs

How would I log who authenticated against my ldap system on Linux in my lab? I have a lab with several workstations, and one server running openldap. I would like to have similar functionality as with ...
2
votes
0answers
19 views

Can I increase the read error threshold on Linux software raid?

I have a two RAID 10 volumes where only one partition on /dev/sda was kicked out of one of the two volumes. Here's /dev/mdstat (in the middle of recovery): md1 : active raid10 sda3[4] sdd3[3] ...
0
votes
1answer
24 views

nrpe user cant properly execute script remotely using lsof, netstat works

I created a simple script for nagios to check a port on a remote server. Originally, I tried to use lsof. #!/bin/bash RESULT=$(lsof -i :8080 | grep LISTEN) if [ -n "$RESULT" ] then echo ...
1
vote
2answers
92 views

Failed to start MariaDB database server

Since / partition is only 50G, and my data is larger than that. And there are 500G space in /home. So, I move all the data of MySQL into /home. The following are my steps(under root account): shout ...
1
vote
0answers
59 views

Periodical changes in Remote Host Identification (SSH) on CentOS 6

I have this following error when I tried to connect using SSH: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ ...
3
votes
3answers
286 views

How to load balance with respect to memory, disk usage, and other attributes

I've found load balancers such as NGINX but those seem to work only by keeping in mind CPU usage and network traffic. How would I load balance with respect to other variables such as the amount of ...
1
vote
1answer
40 views

Customize OID of snmp in linux

Iwant to add an custom OID to MIB tree structure. I add the line as below to file /etc/snmp/snmpd.conf extend test1 /bin/echo Hello, world! but I don't know how to specifiy the exact OID ...
-1
votes
0answers
11 views

How to find binutils build options?

I have a custom toolchain + binutils. The used options for Toolchain I can verify with: #gcc-4.7 -v Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro ...
0
votes
1answer
42 views

ningx directory (21: Is a directory)

I'm trying to configure nginx on aws linux. I can get it working for one site, but when I try to add another I continually receive the following error: nginx: [crit] pread() ...