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

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7 views

Linux RPC delete registration

there is a well-worked program (daemon) running on CentOS-5.4 that makes by itself RPC registration as program 191299 version 10. After an unplanned program stop, the RPC registration is still ...
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0answers
23 views

ProLiant DL140 G3 and xorg

I have HP ProLiant DL140 G3 and decided to install Debai Wheezy on it. I've got problems with the video adapter. Xorg detected many resolutions, but my monitor can work with "1280x1024" and this ...
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0answers
17 views

how multicast stream passes when receiving locally

If suppose I have TX application which transmits UDP multicast to 239.0.0.1:1234. And I have RX application which joins multicast (239.0.0.1:1234), and receives this multicast (239.0.0.1:1234). I ...
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0answers
18 views

Get “Permission denied” when trying to run a 755 script [on hold]

The mode of my script is 0755, with owner set to myapp and group set to root: -rwxr-xr-x 1 myapp root 349 Dec 25 06:45 /var/www/myapp/.venv/bin/command When I try to run this script with sudo -u ...
0
votes
0answers
9 views

pg_basebackup automatic password

I have a master and slave database setup. The master database is on a secure network and only the postgres port is allowed through to the slave database server. The database needs to be secured and ...
0
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0answers
23 views

Interpreting uptime and top average load numbers

I am running a LAMP stack on an 8 core VPS (on Digital Ocean). I am seeing extremely high load average numbers (in the 150 range - see below), while the server does not seem to be overloaded at all ...
-1
votes
0answers
10 views

Privoxy - Route certain traffic through VPN [migrated]

I'm trying to setup privoxy so certain traffic is routed through a VPN tunnel. The idea is: Clients -> Server running privoxy -> send requests directly or through VPN based on URL. I already had a ...
1
vote
1answer
33 views

How to interpret iostat for a crumbling MySQL server

We have a combined application/MySQL-server which has started to crumble. Right now, it gets stuck on copying a 125 million row MySQL MyISAM table (INSERT INTO a_copy SELECT * FROM a with KEYS ...
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0answers
34 views

reboot a hard disk without rebooting a linux server? [on hold]

I don't even know if this is possible, but I have a test server - a mirror of my online server really - and I have some older hard drives in it. I also happen to be away from the system at the moment. ...
-1
votes
0answers
14 views

HAProxy cannot bind socket for Unix listener

I need to make my Linux [Ubuntu 14.04] work as load balancer using HAProxy. For that I followed the steps given on this link. But I'm getting this error: root@tejas-desktop:/usr/sbin# sudo service ...
-2
votes
0answers
13 views

0 of 0 agents connected when accessing through windows

I've got a very weird error when accessing to Opscenter. Everything works fine when I'm connecting from one machine with Linux-Ubuntu ("All agents connected"). But at the same time, when I'm ...
0
votes
1answer
36 views

Chain NFS sharing [on hold]

We have a storage server which for some reason cannot be reached directly (and of course not in same network). So we thought that we need to create some kind of chain NFS sharing like; ServerA ...
0
votes
0answers
38 views

Admin CMD through SSH [migrated]

I have freeSSHD set up on my Windows computer, and I use my Linux laptop to connect through SSH. However, when I SSH into my Windows computer and try to run a custom Batch script that requires admin ...
1
vote
4answers
56 views

ZFS backup advice with another server [on hold]

I currently have two servers both have the exact same hardware, disks, etc. One server (server1) is going to be the "main" server. It's basically a server with raidz2 that has SMB shares on it that ...
-2
votes
0answers
27 views

What is the best practice for installing Linux software from source? [on hold]

I have a couple of applications that I would like to run on my server, but they are not available through the package manager on ubuntu. What is the best practices for installing and maintaining ...
0
votes
0answers
28 views

How can I test if a good sized website will work well on another server? [duplicate]

I manage a web server that runs a web forum. The site sees over 600,000 pageviews a month (160m+ hits). The server was purchased a few years ago as a standalone bare metal box. It runs CentOS 5.10 and ...
-4
votes
1answer
32 views

Bash script to move certain files to specific directories? [on hold]

I'm looking for a script that can move files from one directory into another, however each file has a different name and its name corresponds to what folder it should be moved to. For example: file ...
1
vote
1answer
30 views

Cause of error: Invalid (old?) table or database name 'lost+found'

My MySQL log shows duplicated errors: 141223 5:47:21 [ERROR] Invalid (old?) table or database name 'lost+found' I have a database named #mysql50#lost+found but I cannot seem to delete it. ...
-1
votes
1answer
27 views

Downloading ftp with wget when the username is an email address [duplicate]

I want to copy all of the files and folders from one host to another. The files are on the old host site at /var/www/html. I only have FTP access to that server, and I can't TAR all the files. I ...
0
votes
1answer
10 views

Keep showing old processes in nethogs

Nethogs stops showing idle processes after a while. How can I make it keep showing them? I want to have a complete history of processes for long time. Is there any alternative to nethogs?
3
votes
0answers
15 views

Filter mirrored port traffic using iptables

I receive traffic from a mirrored port and I would like to send it into an NFQUEUE for processing. Because of the mirrored port, the packets destination MAC addresses are not my host MAC address. ...
0
votes
0answers
20 views

A tool to get disk activity statistics from strace? [duplicate]

So, with strace we can monitor the "file" activity, like the "open", "read" and "write" operations, but is there a tool which will calculate a sum of read and write operations grouping it by the file, ...
0
votes
0answers
12 views

Windows Azure linux domain

I've set up a Virtual Machine and I need to connect my domain .site.com to Windows Azure, I tried to do it with an A record using the provided IP, but the VIP address is not static, and after ...
0
votes
0answers
10 views

Load Balancer for web site hosted on Apache server - Linux [duplicate]

I am hosting a website on Apache2 server in Linux (Ubantu 14.01), its a PHP website. I need too create access point for around 5000 concurrent users. Can anybody help me with the Hardware which i ...
0
votes
1answer
22 views

NTP not sync the time continuously, Have to restart the service of NTP then it SYNC in Ubuntu

I am facing one problem. NTP server not sync the time automatically. If I change the the time of system then NTP server not able to correct it. After reboot the service of NTP it sync the time ...
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votes
0answers
31 views

Linux User Management Best Practices [on hold]

I am a long time Windows administrator and I am working on moving into Linux. One thing that I really like about Windows is the ability to use Active Directory as a central user\group repository. I ...
1
vote
1answer
22 views

SNMP - snmpwalk does not return textual OIDs

I have snmpd running on an Ubuntu Linux system with a simple /etc/snmp/snmpd.conf: rocommunity public snmpd is listening on localhost. From the same system, I am running: snmpwalk -v 1 -c public ...
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votes
1answer
23 views

404 Not found - Apache CentOS

I am running CentOS 5.11 with apache/2.2.3(named) server. I am able to view my site homepage, so I can confirm php is running correct. However when trying to naviate to one if the pages like ...
0
votes
1answer
40 views

Linux: iptables and marking confusion

Before I ask my question, let me first pose the situation: I have 2 network interfaces: eth0 and eth1 I bridge those 2 (using brctl) and form a new interface: br0 This bridge gets the ip address ...
4
votes
1answer
130 views

How can I remove “Red Hat Network Code” from the RedHat?

The question is: How can I remove "Red Hat Network Code" from the system and what this "Network Code" actually is? The background of this question is related to the RedHat subscription as according ...
1
vote
0answers
17 views

System not being able to handle soft interrupts but having idle time?

I have a constant 5% and more CPU time spent in handling soft interrupts. Doe to that, the ksoftirqd is running almost constantly, but is using a very small amount of CPU (less than 1%). However, ...
-4
votes
0answers
22 views

high CPU usage due to monitoring agent? [on hold]

The server CPU load is very high. Does the monitoring agent has some isseus with it? # tail /var/log/messages Dec 22 19:06:33 ctiserver_1 xinetd[7035]: START: nrpe pid=5707 from=192.168.1.111 Dec 22 ...
-1
votes
1answer
25 views

how to watch certain directories based on pattern for changes (inotify) [on hold]

Is there any way that i can watch a whole /home directory in cpanel, and in case any directory in it with name ".spam" has certain event triggered on it, take action against it? (run a script). ...
0
votes
0answers
6 views

CROSS compilation of BTRFS file system [migrated]

We are developing Beaglebone black based custom board, We are planing to use eMMC for storage. To decide the file system on the eMMC we want to cross compile Btrfs user space utility, Does anyone know ...
2
votes
0answers
47 views

Current state of Tinc 1.1? [on hold]

So as probably any Tinc user ( www.tinc-vpn.org ), I noticed there are two versions: 1.0 and 1.1. On the website is explained that 1.1 is the stepping stone for 2.0 and that it has a lot of neat ...
3
votes
1answer
54 views

Postfix SMTP relay server

I use gmail to receive e-mails both from my gmail address and my own domain, but gmail no longer allows you to send e-mails from your own domain name unless you provide your own SMTP server to send ...
-5
votes
0answers
91 views

MDADM not showing RAID5? [on hold]

Background: I own a Blackarmor NAS 440. I set up 4 brand new 3TB Seagate drives in RAID 5. It has been working fine for ~2 years, until this July. This is what happened in July : HDD3 failed. I ...
1
vote
3answers
71 views

mount a root disk in mnt

How can I mount a root virtual disk from another VM on my CentOS ? In order to change some files on it, not to use it as a real root disk. there are 2 partitions on my virtual disk : /boot (Linux ...
-1
votes
0answers
20 views

RHEL/CentOS - hugepages configuration for Oracle DB

I am going to use hugepages on my RHEL6. I have 6 Oracle db instances on it. SGA are configured and memories parameters setted to 0. I would like to know how to calculate the value to use for ...
0
votes
2answers
57 views

How can I access the bios remotely on a desktop computer acting as a server? [on hold]

What are the options for having remote control via network of a computer even down to the "bios" level. I've seen Dell's DRAC / Out-of-band management that they have for their servers, and typically ...
2
votes
1answer
20 views

libvirt - Restart VMs after return from power failure?

Is there any way to make KVM automatically restart any VMs that have been shut down due to power failure? Here is my scenario: I run a small VM tank, mostly with development VMs on it. I now have a VM ...
-1
votes
0answers
15 views

Does Ubuntu with Linux 3.5 having TX RX ring buffers or BQL

My linux uname -a command outputs: Linux Davinci001 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux So, does NICs with this Ubuntu machine is ...
2
votes
1answer
17 views

Remote end of IPSec transport is 'permenantly glued' to loopback after some messing around with GRE

So, I have managed to get IPSec transport over ESP between two hosts using racoon: the 'local' host, 1.1.1.1, and the remote, 2.2.2.2. It only worked for ICMP (other traffic ignored the SA), but ...
1
vote
1answer
27 views

How to clone image and data for VM on Azure?

I'm trying to find a way to clone the image of one VM on Azure. I knew some information about 'sysprep' and Linux system, but those require delete the previous VM. In my case, I don't want to delete ...
12
votes
3answers
773 views
+50

Enable SSH shell access but disable SFTP access

I've searched for a viable answer to this question, and most of the answers include advice on why to not do it. However, here's the scenario, and what makes it necessary: I have a console app, and in ...
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votes
0answers
23 views

After cpanel install on linux cannot access WHM [closed]

I am very new to this and need some assistance. I have a dedicated server running centos6.5. I installed cpanel onto the server this morning. First i had issues with the domain name on the server not ...
-2
votes
1answer
37 views

Determining the old MX record [duplicate]

Our sysadmin created our mailserver years ago before he left. We recently decided to use gmail as our mail app and they required us to change the MX record to point to them on amazon route 53 app. I ...
0
votes
1answer
28 views

Moving MySQL files from Mac to Linux

I had a mysql server running on a Mac. Unfortunately, the Mac died. However, I got a backup. I am now trying to restore the server on a Linux machine. I have moved the mysql files located in ...
1
vote
1answer
31 views

SSH from Windows to Jump Server to MySQL [closed]

We have a MySQL instance running on a Linux machine and had to open a tunnel to access the server. This worked fine until admin decided to add a steppingstone / jump server. Now i can't seem to ...
0
votes
0answers
31 views

Finding and renaming directories by regex in linux

I'm trying to match (and later rename) directory names like: A0000 (SOME-NAME) A0001 (SOME-OTHER-NAME) A0001 (ANOTHER-NAME) I'm testing to see if I match any using the find command but doesn't seem ...