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

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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 ...
2
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0answers
25 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
22 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 ...
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1answer
31 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 ...
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0answers
12 views

Iodine server not accessible: [on hold]

I'm trying to get Iodine running on my Kali Linux server but I keep getting errors. Following the instructions, I: Created an A record at noip.com - myname.ddns.net - for my router's dynamic IP ...
3
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1answer
9 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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0answers
16 views

Install SQL Loader on Amazon Linux AMI [closed]

I am using Amazon RDS for my Oracle instance. I want to install SQL Loader so I can transfer huge CSV files (500 MB and above) directly from my Linux Terminal. How can I install SQL loader on Linux ...
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3answers
26 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
54 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
vote
1answer
36 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
7 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
7 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
42 views

How to use linux date variable in smbclient command

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
23 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
37 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
29 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
votes
1answer
21 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
40 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
votes
1answer
19 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
18 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
17 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 : ...
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votes
0answers
16 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
19 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
64 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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votes
2answers
54 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
22 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 ...
0
votes
2answers
34 views

Asterisk call should be with peer, but gets trapped and stays local

I'm working with Asterisk and Vicidial, trying to place outbound calls through a SIP "trunking" provider. The calls never connect, instead I hear either demo-instruct.gsm or invalid.gsm playing from ...
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3answers
59 views

Very irregular disk write performance and repeated SATA timeouts

I have a new 8TB Seagate Archive disk in one of my machines (Ubuntu 14.04.2, Kernel 3.19 from git.freedesktop.org, MSI 7817, Haswell chipset, i5-4570 CPU) and there are multiple issues with this disk. ...
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1answer
49 views

trouble opening port 8080 on rackspace dedicated redhat linux [on hold]

I have a server running apache on port 80, and I'm trying to setup nginx running on 8080 to setup/test nginx setup before switching out apache for nginx. I've never had issues opening a port before, ...
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0answers
31 views

Source IP rate limiting in iptables: hashlimit vs recent

I want to perform rate limiting per source IP in iptables. For example, limit the rate at which a host can establish new SSH connections to 5 per minute. To my knowledge there are two ways of doing ...
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0answers
32 views

hp proliant gen8 Microserver read/write for nas and backup [closed]

Does anyone know the read write Mbps speed of network + hdd (non ssd) diskio for gen8 proliant microserver ? It has an hp raid controller , does it work with linux ? I am thinking of using it as a ...
3
votes
1answer
29 views

Restrict postqueue access to admin user

I'm running postfix on Gentoo as mailer daemon. During investigation of some queue pileup I found that /usr/sbin/postqueue is executable by all users on the system, it happily outputs the current mail ...
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votes
0answers
13 views

how to configure samba server in redhat6.2?

If i install samba server in redhat6.2, i got the following error root@localhost /]# yum install samba Loaded plugins: product-id, refresh-packagekit, subscription-manager Updating Red Hat ...
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0answers
24 views

traceroute remote server show a local ip on last but one jump [closed]

here is my China PC traceroute to a Spain server traceroute -n remoteserver.com traceroute to remoteserver (xx.xxx.x.xxx), 30 hops max, 60 byte packets 1 xxx.xx.xxx.x 4.406 ms 4.758 ms 5.521 ms 2 ...
0
votes
1answer
39 views

Adding a VLAN to Multiple Aliased (Virtual) Interfaces

I have a server running centOS 4.6 with 4 NIC ports. I successfully set up 2 ports with 32 virtual interfaces to handle my VLAN-untagged connections and have no issues with that side of things. ...
-1
votes
0answers
21 views

error: cant't find command linux when booting system [closed]

I need some help with a problem when booting. Recently I've installed CentOS 7 on my pc, previously I had debian 7 and manjaro installed. When I installed manjaro I overwrote the bootloader of debian ...
0
votes
1answer
24 views

vmrun command not working with ssh [closed]

I need to start a VM Player, whose .vmx file resides in my Windows, remotely from some other Linux machine. So to access my windows m/c from linux m/c, I am using bitvise ssh server in my windows m/c ...
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votes
1answer
31 views

Linux private file encryption

I need to store and secure clients files. I would like to encrypt files and not being able to open it. Only file owner can open his file. I think I’ll have to generate private key for each customer. ...
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votes
1answer
25 views

How to set port no in host.cfg file and use it in services.cfg file in nagios

I have hostgroups.cfg file in which i have different hosts with different port no. I want to pass port no for every host to services.cfg file where i have put check_http command. As my different ...
0
votes
0answers
11 views

yum list available - not showing all packages

I have a strange problem with yum, working on one server and not working on another server that should be identical. The symptom is that after running createrepo on a directory containing RPMs (and ...
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0answers
8 views

Download kernel+rootfs and boot on it with u-boot

We are working with a few single board computers (SBC). We generate linux embedded images with Yocto (using U-boot as bootloader), and we deploy it manually on SD cards. This works well for now, when ...
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0answers
28 views

schroot only works as root

I recently changed my OS from openSUSE to CentOS. A part of that transition was migrating my chroot jails and schroot configuration. That transition does however not seem to be "plug and play". I used ...
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0answers
20 views

Synology ssh port receiving too many intrusion attacks, how to ban systematically? [migrated]

I have a synology NAS which I leave at home, and leave it open so I can access it remotely from the office. One of the useful things to do is enable the ssh port so I can access it with my terminal. ...
1
vote
1answer
38 views

TSC missing from available clocksources

Not sure why TSC as a clock source is not available? cat /sys/devices/system/clocksource/clocksource0/available_clocksource hpet acpi_pm The CPU I'm using is Intel Xeon(R) X5570 @ 2.93GHz. The ...
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0answers
24 views

How to check ICMPv6 message support in linux box [closed]

I would like to to check the ICMPv6 support in my linux based board.Basically i want the board to reply with the below mentioned ICMPv6 messages with respect to the scenario. 1 Destination ...
0
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1answer
19 views

File executable Segmentation Fault

I have following type of file: File Type: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), stripped MIME Type: application/x-executable, with ...