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

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ls hangs on NAS mount point

Frequently we are running into this problem. our NAS mount points works perfectly and all of sudden it hangs. when we go and do ls hangs the terminal. strace ls /srv/git hangs here ...
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38 views

Dell r730 + Dell 12Gb SAS + Centos 7 + netvault 9.2 quantum superloader 3 not found

In the above configuration Netvault does not find the library attached to the sas controller. What driver should I see with lsmod for the SAS card? I have: ... mpt3sas 195379 0 ...
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0answers
48 views

How to remove directory from rsync share completely [migrated]

Is there any rsync command that can remove some remote directory from rsync share completely? I mean delete not only directory content but the directory itself. And without rsyncing the entire parent ...
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1answer
26 views

Postfix Email Server Manipulation

I have one postfix mail server (postfix-2.10.1-6.el7.x86_64) under CentOS7. Now, our App Department is using it to send sms'es via email. To: 123456789@domain.tld To: 987654321@domain.tld To: ...
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0answers
17 views

ubuntu shell-script install php5 if files already exist

I have the Problem with a ShellScricpt on Ubuntu, because i use vagrant to setup an webserver and I have synced folders to the php5 folder and extension-folder. When I have files in the Folder before ...
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1answer
24 views

post_max_size will not change, stuck at 128M, other settings work

I am trying to increase post_max_size to 1024MB, I am using ini_get('post_max_size') and phpinfo() to check the setting and post_max_size shows as 128M in both. some phpinfo() on the server: PHP ...
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votes
1answer
20 views

Can OpenAFS be used as NFS?

I have an application that only runs on Linux, which will generate ~500TB of data over the next year, which all must be kept and backed up each day. It would be temping to go with ZFSonLinux or ...
2
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0answers
44 views

proc-sys-fs-binfmt_misc.automount failed service

I am using ubuntu 14.10. I have just installed systemd and I have a failing service, proc-sys-fs-binfmt_misc.automount. I've seen here it's a part of systemd: Is this file important? How do I solve ...
14
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2answers
295 views

How to uninstall newly installed dependencies for a RPM package?

Is there an easy way to make a list of the dependencies a newly installed RPM package will install with yum? Example: If you do yum install ruby then it will also install some rubygems. But when I ...
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0answers
40 views

is there a way to determine what process has written a file? linux [duplicate]

The answer marked as duplicate is not related to my question which is very specific. I need to know if there is a command or information stored on linux about how a particular file was written please. ...
2
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1answer
25 views

Benign Email Headers

On our server, we have two separate email systems: if it's a long queue of recipients, then we store it in a queue to be sent in a cron. If it's less than X number of recipients, then it sends ...
2
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0answers
60 views

elasticsearch fails periodically on ubuntu with systemd : how to resolve this?

I am using Elasticsearch on Ubuntu 14.10 and it's periodically going down (entering a failed state). When down, this throws exceptions on my website, users can't search, connect or update database ...
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2answers
52 views

How to find faulty memory module from MCE message?

I am trying to understand MCE message to find which memory module is bad on a server. This message appears in /var/log/kern.log in one server that freezes two times today. Apr 13 22:39:22 mbox ...
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1answer
20 views

ssh tunneling lmgrd port what I've missed?

I've got 2 machines: one local , one flexserver I'd like to do a ssh connection for forwarding the TCP port of the flexserver. On the flexserver, lmutil lmstat -c 5280@localhost is working fine So I ...
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2answers
49 views

Http Requests: how to identify a machine using multiple IP addresses

I have an http server. Is it possible to identify a machine, which is making http requests to my http server using different IP addresses? In other words, is it possible to identify a machine, by ...
1
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1answer
43 views

Apache status says stopped but still httpd process running

I am new to Apache, the server Apache status stopped but still the process is running. The web page is serving properly. When i tried to restart the process, it's not. I believe the parent process is ...
0
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1answer
22 views

How to handle lots of file downloads from my linux server [duplicate]

I have a file 50MB file hosted in my deticated linux server, each day there is almost 50K users that download this file (2.5GB a day). There are lots of crashes and users reports that sometimes even ...
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0answers
17 views

My VPS sends huge spam :( [duplicate]

since I am not tech guy I am trying to find someone who can help me but with no success so far. My VPS sends spam. Like a lot. 1,4TB in two days even though we restart immediately it when we see huge ...
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1answer
33 views

Crontab is delayed by 2 hours [duplicate]

I have got a problem with two crontabs that execute some operations on my website: the first one run a command every 3 minutes and the second one at 5am in this way: m h dom mon dow command 0 ...
0
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1answer
48 views

In /etc/hosts is there something special about the first hostname for any given line?

I know that the first one is said to be canonical, but I don't fully understand the practical implications. This question was triggered by the man page for hostname -f, specifically when it says: ...
3
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1answer
51 views

OpenLDAP advanced ACL configuration

I have a multiple DITs in my OpenLDAP server. I made user cn=config the root so that cn=config has root access to all DITs (each DIT). In addition, there is a per-DIT administrator IDed as ...
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1answer
42 views

Cyberpower UPS usage with a Linux arm based sytem

I have a UPS (Cyberpower CP900EPFCLCD) which I would like to connect to an arm based server via USB. Unfortunately, Cyberpower doesn't provide a daemon for arm based platforms at the moment. Is there ...
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0answers
4 views

Scripted write-then-read from Unix domain socket using socat [migrated]

I have a simple server listening on a Unix domain socket (on a CentOS box in case that's important). When I send the command "DATE" to the socket it writes back a welcome message and then "APRIL 15 ...
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0answers
27 views

Solving an asymetric HA Firewall/router

I have an old Linux HA firewall/router setup that never quite worked. As it was never quite put into true production (just testing and demo's), I always had to have one firewall shutdown to make it ...
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1answer
31 views

MySQL PID Errors

While attempting to change the MySQL server timezone to CDT to match the Centos sytem time, something has messed up. I edited the my.conf in /etc/ in vim logged in to SSH as root, and saved it. On ...
2
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1answer
52 views

How to test for file absence with serverspec?

The serverspec guide on resource types doesn't explain how to test for the absence of a file. This is the best I could come up with: describe command('/bin/bash -c "[[ ! -e /var/foo ]]"') do ...
3
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1answer
13 views

How to copy a directory of files before a particular service starts up on Windows 7

I have a Windows 7 desktop and a Linux server running SSH and Samba services. The Windows machine has a directory of files that need to be synced with a copy on the Linux server. The Windows machine ...
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3answers
28 views

how to recover all mysql tables of all databases in centos6 with mysql 5?

mysql is corrupt in centos 6 it is showing #1033 - Incorrect information in file: /xxxx/xxx.frm for all database and showing all tables empty. how to recover all databases?
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2answers
62 views

Linux Red-hat 6 Network manger interface priority

I have a question regarding RedHat 6 Enterprise Network Manager (NM): My Linux is connected to two network interfaces. 1 – eth0: Normal Ethernet which is connected to the company LAN 2 – eth1: An ...
1
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1answer
57 views

copy LVM partition to new disk

I have a question about making copy of LVM partition to new disk. I want co copy not to move data. My operating system is Debian. On LVM partition I have running Xen virtual systems. Information ...
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0answers
24 views

Linux DST confusion [migrated]

My question is about Daylight Savings Time (DST), and whether or not the following is behaviour is normal under Linux. I am using the POSIX TZ variable to specify the timezone. Using the example ...
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0answers
12 views

uwsgi process not quitting after stopping in django app

I have uwsgi 2.0.10 with django and supervisor. I am running uwsgi with command = /usr/local/bin/uwsgi --ini /var/www/conf/uwsgi.ini --die-on-term When i do supervisorctl stop app-uwsgi I see ...
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0answers
15 views

OpenVPN and oLDAP configuration

I have a Linux VM setup with OpenVPN on Debian 7.8. I copied the client files over to my MacBook and iPhone and I'm successfully able to create a VPN connection without any issues. However, I'd like ...
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0answers
51 views

How to use linux date variable in smbclient command [on hold]

I am attempting to put a file into remote windows drive using smbclient. The file name should be created using the linux date variable . mput DailyReport_$( date '+%Y-%m-%d' ).csv For some reason ...
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0answers
29 views

Software Raid: Array inconsistent state

I'm running software raid 1 with md on debian distro. One of the disks has failed, but not all of the raid arrays were at that time in a "fail" state. In order to bring them also in a fail state (in ...
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1answer
51 views

Setting up iptables filter to allow Git

Sorry I am new at this server stuff, so bare with me and if I'm missing any info let me know! I'm trying to setup my Ubuntu 14.04.2 LTS server to have a solid iptables firewall. Right now I think it ...
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0answers
9 views

Seeing what Linux kernel compile options where used [duplicate]

Is it possible to tell what compile options a running Linux kernel has been built with? I am particularly interested in those that impact on preemptive behavior, such as CONFIG_PREEMPT_VOLUNTARY. ...
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0answers
30 views

Fallback to status page on a different server [closed]

Recently we had some server troubles. While we can't avoid any in the future, we can be transparant to customers about the server availability. We want to fallback to a different server (status page) ...
-1
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1answer
22 views

enable ip forward with specific port

I have two servers the first one under Linux (Amazon Linux) server with two network card eth0 (IP 1.1.1.1), and eth1 (IP 2.2.2.2), and the second one under Windows server 2008 R2 (IP 3.3.3.3 install ...
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0answers
48 views

Create a VHD file from a Linux disk

I have a disk containing CentOS 5.8 that was removed from a dead box. I would like to make a VHD file from this disk so I can run a virtual machine (instead of a new physical machine). The Virtual ...
0
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1answer
29 views

Ubuntu - mounting partitions as read only

I have a server which has probably been shut down one time too many as a result of power cuts. Now when I log in, it's mounted every partition I can see as read only. I've looked up the solution, ...
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0answers
30 views

Booting from LVM without boot partition

I have recently rebooted a server with over a year uptime which was partitioned like this (and of course it never come back, it couldn't boot): Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes 255 ...
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0answers
35 views

Integrate Squid Kerberos auth and Squidguard ldapusersearch into AD

I'm having trouble with Squid Kerberos auth and the Squidguard ldapusersearch that I use to apply ACLs by Active Directory groups membership. The problem is : Squid and Squidguard see my user as : ...
-1
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0answers
28 views

Load balancing haproxy(s) themselves

Suppose I have many hundred web servers, where every 100 of them is balanced by haproxy. Is there a notion of balancing requests between the different haproxies? How can I achieve this, where the main ...
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0answers
14 views

What type of server is right for my requirements? [IOS Application API] [duplicate]

I am preparing for the startup of my iOS application. What type of server would be the best for my requirements. REQUIREMENTS MySQL DB PHP GET/POST Requests Sufficient Storage for Images Good ...
0
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1answer
21 views

how do I route Asterisk dials from serverA to serverB?

I'm trying to make an Asterisk server connect to a SIP provider (which offers PSTN origination and termination). I've been reading the great Definitive Guide, but am having a conceptual problem with ...
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2answers
80 views

HTTP to HTTPS redirect loop

Firstly, I know there is a million of copies of this question already but after hours of trying solutions from all of them I've got nowhere. So I want to redirect all incoming HTTP traffic on my ...
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2answers
57 views

Managing thousands of machines with approval controls [closed]

We are a startup that is just getting up to speed and running into the problem of managing hundreds of machines, and having to do nightly and weekly releases to all of them as well as managing their ...
1
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1answer
37 views

Ipvsadm to monitor connections on a load balancer

I am working on to set up Haproxy on a load balancer with two backend web servers in the first period. The problem I am facing is to monitor number of connections to each of my web servers. I have ...
1
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2answers
43 views

How do I drop requests from dig?

Basically I'm getting tons of request to my named/bind service, basically those requests are being rejected by named, Those are the messages i get, from tons of ips., How extacly can I drop those ...