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

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0answers
24 views

Why telnet connected to closed port on osx? [closed]

Somehow telnet on my mac show that I am connected to server, even I know the port is closed. I know it is not the network router's problem because other computer on the network work correctly. Anyone ...
0
votes
0answers
10 views

WKHTMLTOPDF - Chinese characters are not showing up

I am using wkhtmltopdf on two of my servers. in one of the HTML pages, I have some chinese letters. The problem is that with the same code, the same version of wkhtmltopdf, on one server everything ...
1
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1answer
19 views

Forward systemd journal messages/Collect systemd journal messages

How can I collect systemd journal events (pull) or forward systemd journal events (push)? I want to have something like forwarded event log ...
0
votes
1answer
24 views

how to connect/bridge two interfaces on different processes

I have two processes A and B (simulating real hardware device), each with their own TAP interfaces. If I want to send an ethernet packet to A, I send it on interfaceA, and similarly if I want to send ...
0
votes
1answer
28 views

VIP not dropping from backup keepalived

I may not be understanding how this is supposed to work, but I can't figure out why the BACKUP system with this basic vrrp_instance is transitioning to master right away and never seems to honor the ...
1
vote
2answers
86 views

Python Script portion failing to execute within init.d/ on RedHat 6.5, why?

I've created a init.d script called rmCluster which is supposed to execute a simple python script at shutdown which uses boto to shutdown a particular cluster of servers, with 755 perms, located in ...
1
vote
1answer
27 views

Node.js websocket error “Error: listen EADDRNOTAVAIL Error: listen EADDRNOTAVAIL”

Application work fine on localhost .but when its connect to server it getting error. I connect server through port 22 But my app connecting server port 80. This is the error Error: listen ...
2
votes
1answer
34 views

Installing boot manager to a raw LVM physical volume

Is it possible to install some boot manager to disk with raw physical volume inside (i.e. no partition table)? I tried LILO and LVM volumes became inaccessible (due to LVM structures corruption). Boot ...
0
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0answers
38 views

Linux: getting detailed stats for a single HTTP request? [migrated]

I'm writing a script to determine the performance of a service from a client's point of view. To that effect, I need to be able to determine a few stats for each HTTP request like: DNS lookup time ...
0
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1answer
50 views

Local port access blocked by iptables

Although experienced with Linux, I'm new to iptables, having set it up following a Rackspace virtual server setup guide. Using port scans and checking remote access to required ports, I can see all ...
0
votes
2answers
47 views

Is there a way to allow acess to an specific device that is out of my network? [closed]

I’m trying to allow my mobile device to connect from everywhere, Wi-Fi or not to an specific port of my Linux server which is running a webmin service. I’m using iptables to set some rules to which ...
1
vote
1answer
36 views

Can I mount a read-only btrfs volume across multiple machines?

Is it possible to have a single btrfs mounted volume read-only mounted across multiple machines? Can one of the hosts mount it read/write to provide updates to the others? The reason I'm asking this ...
1
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1answer
53 views

bind9 proper recursion setup

If I remove recursion then I can't resolve external domains but can still resolve domains that are on the DNS server. What is the proper way to setup recursion correctly so external domains can still ...
-1
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0answers
17 views

Centos 4 Updating bash [duplicate]

I have a old machine running centos 4.8 was wondering how I could apply the latest bash patch for shellshock. I know there is no support for centos 4 not but since its just a security update is there ...
1
vote
1answer
33 views

How do I check file count inside a directory with monit?

I have a directory on my server and I want to monitor the number of files inside this directory with Monit... How can I do this? Thanks.
0
votes
0answers
44 views

Setting up a bootable multi-device (RAID 1) using Linux Software RAID

I'm trying to setup a bootable software RAID that will contain the root filesystem and boot up Linux Mint Qiana. It will be used to run a few graphical monitoring applications in a small datacenter, ...
0
votes
3answers
34 views

bind9 SOA issue

using DNSStuff site to run checks against our bind9 DNS servers and it's coming back with One or more SOA fields are outside recommended ranges. Values that are out of specifications could cause ...
2
votes
1answer
51 views

Gracefully logout all connected ssh users on reboot

When I reboot my Linux server (BusyBox Linux) all ongoing ssh client connections run into a stucked state until a timeout on client side occurs. There is no message sent to the ssh client to produce a ...
0
votes
0answers
34 views

Creating new Ftp user and directory with Proftpd

I am having difficulty creating a new ftp user with proftpd. I have another 2 users setup on my server which I have been using to check corresponding files after running some cmds(in hope to find ...
-2
votes
0answers
42 views

Apache was hited from localhost at the time the server was under attack [duplicate]

I have reasons to conjecture that my server was under some kind of attack last week. (The webserver wasn't responding during the time I was teaching students of computer science at university.) I was ...
8
votes
2answers
275 views

Filesystem Hierarchy Standard - Where to put sourceable functions?

I have a few bash scripts running system checks. These scripts source configuration options from a file /etc/healthchecks/config. Along with the config file, I have a shared functions file. The ...
2
votes
0answers
88 views

Network Layer 7 Deep Packet Inspection linux solution that isn't a all-in-one distro?

Overview: I have software that has our Edge/DNS servers hardcoded into them, DNS queries returned from DNS servers are not being masked properly. I need the DNS entries that are returned from BIND ...
0
votes
1answer
15 views

How to fix non-working ethernet under Linux, with RX permanently increasing?

I have a system with the latest Linux Mint. An ethernet cable which yields internet with no special action from me under Windows 8.1 is detected under Linux, but does not seem to work. Running ...
0
votes
1answer
90 views

CENTOS 6.5 x86_64 fails to install httpd using yum

I am trying to install apache httpd but it fails root@web [/]# yum install httpd Loaded plugins: downloadonly, fastestmirror, replace Loading mirror speeds from cached hostfile * epel: ...
1
vote
1answer
47 views

Disabling damaged RAID 1 to read from healthy HDD

One of the HDDs in my software RAID 1 on a dedicated server is damaged. The customer support is slow to respond. I would like to transfer all data I need to another server, but file access is ...
0
votes
1answer
23 views

Determine the setup of an existing SFTP user

CentOs 6 Linux Server I have an SFTP user (userok) that is jailed to a particular sub domain. All working perfectly fine and that is all that user has access to (full permissions). I have just ...
1
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2answers
35 views

Ensuring a given set of RPMs, and only those RPMs, are installed

I have multiple lists of RPMs (one per configuration), and a set of remote machines. Each list includes all of the RPMs needed to run my machine in the configuration I choose. For a given ...
-1
votes
1answer
36 views

Monitor bandwidth per directory [closed]

I have uploads directory and I would like to count the total downloads of files in that directory, in short, is it possible to monitor the consumed bandwidth per directory?
0
votes
0answers
64 views

CentOS drops network interface with second ip address

I'm running CentOS 6.5 (final) on my server with two ip addresses. The main ip address is just working fine. The second ip address is working for about 24 hours. After this period it automatically ...
0
votes
1answer
36 views

link aggregation with wifi and ethernet on Linux

I have a computer running linux with a wifi and an ethernet interface. I'd like to set up link aggregation (at least fail-over, but other modes would be nice too) between these two so that both this ...
1
vote
2answers
30 views

How can I configure monit to only alert rather than restart?

I'm looking for a way to have monit only send out an alert when a particular process goes down. For example: check process apache with pidfile /var/run/httpd.pid group www start program = ...
0
votes
1answer
59 views

Failed to ping through gateway which is not default gateway

I have the following network interface configuration, eth0: 192.168.78.1/24 eth1: 192.168.254.76/24 (Gateway 192.168.254.1) eth2: 192.168.253.131/24 (Gateway 192.168.253.1) where both gateways ...
0
votes
0answers
23 views

Apache tomcat server for yum repo

I have a system that currently has apache tomcat on it (RHEL 6.5). I also want to make a yum update repo on this system for other systems on the network (also RHEL 6.5). I know I can use the apache ...
0
votes
0answers
13 views

ipv6 ping host got destination host unreachable until run tcpdump [migrated]

At first (all computer booted) when I ping the gateway (linux computer, two network cards(one is usb)) from a windows computer, I got: "Destination host unreachable", but when I run "tcpdump -i ...
0
votes
1answer
27 views

Linux: How to get a list with all the hosts connected to a domain? (CentOS 6.5)

I want to print a list of all the hosts connected to the domain. I'm looking for a command which does more or less what that one in Powershell does, but for Linux: Get-ADComputer -Filter * | ...
0
votes
1answer
32 views

Need help interpreting route output

GUEST CentOS VM (VirtualBox): [root@localhost network-scripts]# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default ...
0
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0answers
37 views

Bash - Need to make df output user friendly on login [migrated]

I am trying to display the disk freespace to users when they login. Basically the output of df -h. I added this to .bash: echo -ne '\e[0;34m'"Disk: \e[m"$(df -h)"\n" It works fine & auto ...
0
votes
0answers
22 views

Hard Drive Recovery; Owned by 1001 and operations block

I'm trying to recover data from a crashed hard drive. I have a SATA to USB cable and I'm trying to pull the data onto a temporary machine. The drive mounts just fine. However, the drive is owned by ...
4
votes
0answers
47 views

Prepping a virtual appliance

Before converting a running virtual machine to an OVA (redistributable virtual appliance), what does one need to do to ensure it is in a ready state so the instances of the OVA don't bring along ...
0
votes
1answer
24 views

Docker attach to curses process

I'm trying to use docker attach to attach to curses-based graphical process: $ docker run --name irssi -it pandrew/irssi irssi When you detach from this process using ^P^Q and reattach with docker ...
0
votes
1answer
26 views

Restrict access to some addresses for some OpenVPN clients

I have a VPN server on FreeBSD to access a LAN in which there are several machines. Some of the LAN machines offer un-autenthicated services. I want some VPN clients to access only one of the ...
0
votes
0answers
23 views

bash shellshock update causing script to behave differently [migrated]

This is one of the things that happened since we've updated our bash ( due to the Shellshock thing ) This is the code that I'm testing: #!/usr/bin/python2.4 import subprocess, os p = ...
0
votes
0answers
41 views

XenServer Corrupts Virtual Machines

After (we believe) a backup application passed large amounts of traffic across a low quality SAN that some of our VMs were running off of, all VMs became read only, after this we powercycled the host, ...
0
votes
1answer
28 views

OpenVPN config for route some traffic through VPN CentOS 6

My server is using CentOS 6.4 64 bit and have 2 network adapter. 1st adapter have an internet ip: 192.241.190.x 2rd adapter is an LAN network with ip: 10.60.5.62 I installed openvpn and config for ...
0
votes
3answers
72 views

How to mount Physical Volumes separately which are bound using LVM

I have a VG (volume group) containing 3 PVs (Physical Volumes). Some physical fault has come up in one of the PVs (maybe?). At the attempt of mounting each PV separately, it gives mount: unknown ...
0
votes
1answer
29 views

Mounting Windows Share from Ubuntu

I've a windows shared folder which I can access by typing \share\files\ in "run" or address tab of windows file explorer. I need to use that in Ubuntu. So I added \\share\files\ /mnt/share/ cifs ...
0
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0answers
26 views

Dual core CPUs stall with Docker on Ubuntu Linux

I have seen performance degradation after half an hour to one hour with machines running Celery (Django/Python), or Storm under Docker containers with Ubuntu base on Dual-core CPUs on AWS. I see ...
2
votes
1answer
65 views

iostat - dm-0 device shows much higher latencies than sdX

We are running linux (Centos 5.x) VM's on top of vmware vsphere 5.5. I am monitoring disk latency using iostat, specifically the await column, but I am noticing strange results with the device ...
0
votes
2answers
23 views

PHP configure not finding LDAP header libraries

I installed the LDAP development headers: apt-get install libldb-dev This added a few ldap headers: root@crunchbang:/usr/include# ls -la ldap* -rw-r--r-- 1 root root 9466 Apr 23 2013 ldap_cdefs.h ...
1
vote
1answer
77 views

Upgrade mysql 5.5.40 to 5.6 on centos 6.4

I can't find a repo to add to my repolist that has an update for mysql 5.6. Does anyone know how to do this? I tried this [link] but it broke everything. I was getting a mysql_connect() undefined ...