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

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Is it possible to have socket TCP proxy anonymous as a system-wide implementation?

Is it possible to have socket TCP proxy completely anonymous on a linux level implementation ?
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1answer
21 views

Linux - ubuntu - File system space increasing fast

I am running linux server, we using this server as a samba share drive. From yesterday suddenly, one of the share drive size getting increasing (~ 100 MB every ten min). There are too many folders and ...
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12 views

EMFILE - too many open files solution?

I'm getting this error, my server has a lot of visitor now. My Vps is 4 Gb ram with 4 Cpu. Should I move to bigger server for solution? Because ulimit -n 10000 not working. I'm serving a basic ...
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0answers
7 views

Trying to auto-register a Nagios NSCA client

I am setting up Nagios monitoring using NSCA to report in from monitored hosts and all monitoring is using passive checks. Currently the monitored hosts each have a configuration file in the nagios ...
0
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0answers
5 views

ldapsearch - Get all members of a CN (nisNetgroupTriple)

I'm a bit new to using LDAP, especially non AD LDAP. We use RedHat Directory Server and was trying to do an LDAP query (filter specifically) that would retrieve all the users (and their attributes) ...
0
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1answer
27 views

Unable to get SMART metrics from Seagate Disks on Debian OS

Referring to the question here, I too am trying to get all attributes out, as explained in this blog here. I am using Debian 6 as OS, and installed smartmontools version 6.3 using apt-get. My 6 disks ...
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2answers
28 views

unable to start the bind dns service in linux

observed following errors when try to start the dns service in virtual linux pc [root@mininat ~]# service named status Redirecting to /bin/systemctl status named.service named.service - Berkeley ...
0
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1answer
12 views

Unable to authenticate LDAP client with PAM when pwdReset = TRUE

I have searched tons of webs and tutorials but I couldn't find an answer to my problem. I have set up OpenLDAP 2.4 on a OpenSUSE 12.3 machine with a password policy overlay. The client is a Linux ...
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0answers
15 views

How to configure HAproxy with weight and cookie stickiness?

I have two web servers. web01 and web02. they have different code on them. I want most of my connections to reach web01 and few to reach web02. I want to have cookie stickiness (not source ...
0
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1answer
11 views

How do you install the optional channel on RHEL version 7?

To install Puppet Master on RedHat Linux version 7, you need to install an optional channel. Can someone provide directions on how to do this? I want to install Puppet Master. I tried to install ...
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0answers
20 views

How do I measure energy consumption? [on hold]

What is a feasible way to calculate how much energy (kWh) serving a page (pageview) consumes, in average? (Or a single process) I found this article: ...
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0answers
9 views

Restrict user changing xscreensaver settings

I would like to know any solutions people came up with restricting a user from changing a system wide configuration of xscreensaver. Part of my job is managing systems which have a requirement that ...
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2answers
30 views

Redirecting to game ports based on subdomain? [on hold]

I've been browsing, looking for an answer and there does not seem to be one that works. Here's the situation: I have a web server (running Apache) that I only have access to the files for. It hosts ...
0
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1answer
35 views

Recomendations for this mail server setup?

EMAIL SERVER SETUP Hey, its my first time using serverfault but I hope the community can help. I am trying to build a secure email system using Linux, Postfix, Dovecot and MySQL. I have read on ...
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2answers
31 views

Is there a way to query all the mac addresses in a network?

I know this question was flagged "off-topic" and "non-professional", but when creating a gateway or IDS, this might be quite relevant. Also, Google finds nothing usable... There is a thing called ...
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0answers
8 views

Can't boot after intrerrupting do-release-upgrade (Mount failed for selinuxfs on /sys/fs/selinux)

From a ssh session I ran: sudo apt-get install update-manager-core sudo do-release-upgrade I went to read something else and when I returned to my ssh session, it wasn't responsive. I'm presuming ...
1
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1answer
36 views

Ldap+kerberos authentication through AD

Is it possible to configure ldap+kerberos authentication on a linux machine without joining it to windows domain? I have to create a pool of VMs using RHEVM with a pretty short lifetime and I do not ...
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0answers
10 views

Installed New Relic however it is not finding individual directory applications

I have a dedicated server running apache with php, we have 4 applications, one per directory, i installed new relic and it is reporting for 1 app through the APM however i dont understand why it is ...
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0answers
11 views

PageSpeed Unicode characters file name

PageSpeed unable to interpret Unicode characters on file names. My problem is that some of the image files names have Unicode characters and Nginx is able to access them. This link is accessible ...
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0answers
32 views

Want to filter a single packet out of a TCP stream [duplicate]

I run a gameserver and I have a problem setting up a firewall rule to block an injected packet. First , this is the target data from worldserver without any injection in the exe that connects to the ...
0
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1answer
31 views

How to increase inodes limit in ReiserFS filesystem?

Is it possible to increase inode limit in ReiserFS without formatting the partition? Currently, the filesystem on my VPS allows me to create 489K inodes, which is not enough. The machine works as ...
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0answers
17 views

Mount the other half of instance store volume

I have a running c3.xlarge EC2 instance on AWS. As listed in http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html#StorageOnInstanceTypes , it should provide 2 x 40GB SSD instance ...
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1answer
36 views

How to maximize AWS Default Partition Size? [duplicate]

Hello Ladies and Gents, I apologize if the question isn't phrased as well as it should be; it's getting late and I've been staring at this screen for way too many hours after work. My core ...
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1answer
18 views

How do I open specific ports on Linux (an AWS instance of RHEL v. 7)?

I'm using RedHat version 7. My AWS instances are in a security group with ample permissions for inbound connectivity. I can do Yum updates. The servers can ping each other. I can transfer files ...
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0answers
10 views

Can't get xfilesharing with Nginx to work [on hold]

Its been a week , i'm trying to get Xfilesharing script upload progress bar to works but i didn't succeed can you explain to me how to make it works with nginx upload progress model or can you tell me ...
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1answer
39 views

iptables rules for blocking specific packets [on hold]

Im using the following iptables rule: iptables -A INPUT -p tcp -m tcp --tcp-flags PSH,ACK PSH,ACK -m length --length 52 -m state --state ESTABLISHED -j DROP It does it's job for blocking the ...
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1answer
39 views

How to make a simple script that increases a number character by 1

I have to add a single command for MANY vlans, and wondering if I can generate a simple text file somehow? Then I can simply paste the text file into the network switch and it will add the needed ...
0
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1answer
23 views

find and replace text from urls in csv data feed [on hold]

I want to add affiliate id say 'xyz' to the below urls Type 1: example.com/abc.html?id=White example.com/abc.html?id=Black Then urls should look like ...
0
votes
1answer
48 views

Route between local machine and a VM running on remote server

I'm trying to establish a route between my local machine (LM) and a VirtualBox VM (VM, create with Vagrant and configured with Host-only Networking) running on a remote server (RS). The setup is as ...
1
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1answer
41 views

Growing memory use

Let me start with picture: This is memory usage of our backup Tomcat server. It is just hanging there, processing simple healt check request every couple fo seonds and waiting for main server's ...
0
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2answers
40 views

KVM virt-clone while the VM is running

Is it possible to clone a running kvm machine without tools like virt-clone? They already have the original vm in production, I cannot shut it down. If I don't care about temporary data corruption ...
0
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1answer
25 views

How can I know the absolute path of a running process? on solaris

this is the command to view the process path on Linux ps -auxwe | grep 24466 ( 24466 is only example ) but please advice is it possible to view the path of running process on Solaris if yes ...
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1answer
18 views

Can't add Nodes to Percona XtraDB cluster

In my case, I have two nodes in cluster, but when I use $service mysql bootstrap-pxc to start XtraDB cluster, I found nodes were not added to cluster. I also check /var/log/mysql/error.log, but no ...
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1answer
25 views

Hetzner script, configuring SSD + RAID1 image installation

I am trying to figure out how to set this configuration on my Hetzner server. The hetzner installimage script provides a default configuration (with comments: http://pastebin.com/tBqezpFn): # ...
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1answer
18 views

Setup fail2ban with apf

Along with BFD we have recently installed fail2ban on our server, it is CentOS and it uses APF to block IPs. I have hunted online on how to get the two to work however when an IP is blocked by ...
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0answers
20 views

AWS Linux RHEL instance unable to format and load new storage partition

I have an AWS RHEL instance. Following are the storage devices on it: $lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 20G 0 disk xvda1 202:1 0 6G 0 part / I ...
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22 views

End of script output before headers: php5

I've inherited the sysadmin role on a server that's running a wordpress website on top of Apache 2.4/Debian. It almost works, but it is issuing "500 internal server error" from time to time. In my ...
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0answers
11 views

Mac OS X Ad-hoc Network Certificate [on hold]

I was wondering if on a Mac with the built in "Create Network" feature, to make the client (which will always be an iOS device) accept a .cer file before joining the network. I know some professional ...
0
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0answers
10 views

cloud-init not executing on rackspace cloud

I was trying to pass a bash script to cloud-init on rackspace-cloud with 'nova boot' via --user-data. I used the following command: nova boot --key-name mykey1 --image "Ubuntu 14.04 LTS (Trusty Tahr) ...
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0answers
27 views

Slow 10Gb Networking 300MB's RAM disk Transfer Speeds [on hold]

I have a dell poweredge 2950 that has 2 Mellanox Connect X-2 10Gb NICS installed in it. They are both in 8x slots. The server has 2 raid0's using SSD's but for testing I'm using an 10gig ram disk. The ...
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0answers
10 views

Network Interfaces Cards and rx_short_length_errors and Linux Kernel

My machine (Linux OS) is counting packets with wrong length, it is a huge environment (GW's, Routers, Switches...) , so I would like to understand how NIC's behaving with these packets. -Does NIC's ...
1
vote
1answer
35 views

How should I manage a long running server process on Ubuntu?

I have an app (in the form of a single binary) that I need to run on one of my servers, and I'd like to be able to control its lifecycle properly. What I'd like is the following: simple one command ...
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0answers
18 views

Permissions of files and subfolders in /var/www/html (Ubuntu 14.10 + Apache2) [duplicate]

I have some questions about permissions and ownerships of folders and files in Ubuntu Server 14.10 + Apache2. Is it correct that /var/www/html is owned by root:root by default? As far as I read, it ...
0
votes
1answer
37 views

Supermicro super server RAID warning

Hey guys sorry in advance for the noobish question. Our company just received a brand new 6017R-WRF Supermicro superserver. I have been tasked with getting this bad boy setup. I am a software dev ...
2
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2answers
37 views

Is an ECC ram enabled GPU necessary for a server, or will a normal gpu work fine in a server?

Is it a requirement for a server to use ECC ram on a GPU while the normal CPU ram is ECC? Im thinking that instead of using a Quadro k6000 or AMD Firepro, we could use a GTX 980 or AMD r9 290...if ...
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0answers
11 views

Mapping right CTRL key to ENTER function

I am using Putty to connect to a Linux server. I am a mainframe person so I really want to map my right CTRL key to ENTER and then map the ENTER key to the NEWLINE function to mirror how the keys ...
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0answers
17 views

server performance affected due to node and npm [on hold]

I have a server that is very slow compared to the memory it has. https://gist.github.com/shantanuo/ac80790c67cc1cca76e9 I can see several node and npm processes. Are they affecting the performance?
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0answers
18 views

Run server on home PC [on hold]

I am newbie. I have static IP address. Is it possible to serve my web site on my local PC.While registering domain I have to specify NS server. I don't clearly understand what is the purpose of this. ...
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1answer
12 views

Can we run thin client to connect to Linux (Suse or Ubuntu) [on hold]

Not sure where to ask such questions, so guide me on that! I am looking to have several thin clients to use same server (system), the work involved is mostly office and browsing related works - that ...
0
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1answer
30 views

Linux centric backup solution for NTFS target

I've got to backup data (around 100GB) on a linux system on a daily basis. I need daily incremental and regular full backups on an 2TB USB drive that is NTFS formatted (no way to change that). If I ...