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

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3 views

React OS on Chrome book

I stumbled on React OS . Its a linux distro that intends to be binary compatible with windows. It also uses code from the wine project that helps to run windows apps on linux. I have a chrome book and ...
0
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1answer
8 views

Supervisord - ini file error on CentOS

I installed Supervisor on CentOS 6.5 and currently experiencing some weird error that I can't seem to fix. I created a supervisord.conf file in /etc directory and call supervisor like this: $ ...
0
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0answers
5 views

Use ip6tables to direct port 443 to 8443 on CentOS 5? [duplicate]

I am running CentOS 5, running Kernel version 2.6.18 & ip6tables v1.3.5. IPv6 is enabled. I would like to use ip6tables to direct traffic from port 443 to the internal port 8443. We did this on ...
0
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0answers
9 views

Which difference between /etc/aliases and virtual_alias_maps in Postfix?

Which difference between /etc/aliases and virtual_alias_maps in Postfix and where should I put aliases from local accounts to virtual user accounts (i.e. from root to postmaster@example.com)?
0
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0answers
11 views

One subdomain to two IP addresses depends on port

I have one subdomain (sub.domain.com) and it redirects user (by SRV record in DNS zone) to specified IP and port. On other IP I have web hosting service and I'd like to have website on the same ...
-1
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0answers
14 views

Successful SSLv3 handshake on Jboss 1.6 despite disabling SSLv3 from server.xml

Reaching out to the Jboss gurus out there, i have disabled the SSLv3 from my Jboss application server, but i am still able to validate a successful sslv3 handshake, ... the only protocol i have ...
0
votes
1answer
19 views

Linux - Disable routing but allow bridging

I have a Linux server that is running the KVM hypervisor. I have multiple bridges on this server (that are on different VLANS). Is there an "easy" way to make sure that bridge hoping (i.e. routing ...
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1answer
38 views

Why are --older-than and --younger-than killall options missing in RHEL/CentOS?

I've experienced this issue in cleaning up scripts written by developer who were writing for Ubuntu systems, as well as ServerFault questions like this. Is there any reason the -o, -y (--older-than ...
0
votes
1answer
32 views

httpd Virtual hosts not routing files to domain

I am running Cent OS and currently have 2 different domains setup correctly on 1 server(I set these up via cPanel years ago) I wish to add a third but do not have a cPanel license, ideally I do not ...
0
votes
1answer
14 views

Squid proxy redirect to search if unable to resolve hostname

When not using a proxy, a hostname that does not exist results in an NX returned from the DNS server, and the web browser (Firefox in this case) is smart enough to attempt a search instead. However, ...
0
votes
1answer
18 views

Debian Active Directory to LDAP migration

These days I am working on LDAP and Active Directory migration. I want to migrate to LDAP but I cannot get passwords from Active Directory. I want to seemlesly migrate to LDAP, and I want a solution ...
5
votes
1answer
151 views

Managing puppet modules with git

I have a puppet/foreman server running on Debian 7 for managing my systems. I use the community version 3.7 of puppet and foreman 1.6.0. I use directory environments. At the moment I use a rather ...
0
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0answers
16 views

Shared hosting - One website resolves but the other doesn't [on hold]

Basically, I have a shared hosting account and I am trying to set up multiple websites on this account. I have set up the first website, and, everything is working fine. The problem is that when I ...
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votes
2answers
25 views

How to monitor Linux server backup execution with Zabbix?

I have more CentOS and Debian servers, where backup is configured to be executed every night. How can I use Zabbix to monitor these backups? I'd need an alarm, when backup files would not be created ...
-1
votes
0answers
30 views

add authorized_key not working with ldap login

I i used to login to my server with LDAP username and password. After login if i check the command, whoami -> "my_username" is displayed properly But if I check in /etc/passwd file there is no ...
0
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0answers
9 views

(OpenShift) Permission denied when installing my own cartridge from my github repository

I froked MySQL cartridge from official github repo and I added some modifications to support utf8mb4 encoding. this is my cartiridge on github : ...
0
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2answers
60 views

Scalable Multi Server E-mail setup using Linux/Dovecot

One of my clients ask me to set-up a multi server, scalable email system. I can configure multiple servers to send emails. By using PHP Mysql based login script, users will be redirected to each ...
2
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0answers
23 views

Passing through RDMA network devices to docker containers

I'm wanting to passthrough infiniband to a docker container so that I can run some high performance apps over ipoib and use rdma. Currently, I'm doing this with xen virtual machines. Now I'm looking ...
4
votes
2answers
198 views

How can I verify if TLS 1.2 is supported on a remote web server from the RHEL/CentOS shell?

I'm on CentOS 5.9. I'd like to determine from the linux shell if a remote web server specifically supports TLS 1.2 (as opposed to TLS 1.0). Is there an easy way to check for that? I'm not seeing a ...
0
votes
1answer
50 views

All my harddrives are around 10 MB/s read/write

I have a HP N54L MicroServer (AMD N54L, 4GB RAM) running on Lubuntu (doesn't really matter happens on Ubuntu too). In there are 4 HDDS each 1 TB, Samsung HD103SJ. I tried every single BIOS setting ...
0
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0answers
10 views

Character map broken during FTP transfer

I have recently migrated a web server running an old PHP shop, which runs a little tricky: let me explain first. If you want to post that on thedailywtf or codinghorror, you're welcome. The shop ...
0
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0answers
17 views

AD Authentication with SAMBA, Winbind and SSS

I'm having trouble authentication with AD to a SAMBA share on a linux server. Authentication appears to be working, but only halfway... [root@myserver ~]# wbinfo -a my_ad_user%password123 ...
1
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2answers
39 views

Add remote host to known_hosts file without prompt [duplicate]

I wrote some scripts and wish to add a remote host to my known_hosts file without any interaction. I can run a command like ssh -o "StrictHostKeyChecking no" root@10.x.x.x which will add the remote ...
0
votes
1answer
29 views

Why process wasn't killed after closing SSH connection

I launched this command via SSH on a Debian server: watch --precise -n 1 top -b -n 1 -p 27330 | tail -n 1 | awk "{print \$9}" >> 27330.log & After a while I quit my terminal. When I ...
0
votes
1answer
26 views

apache2 fails when run through service but not when run directly

I have apache running just fine on start up and manually using /etc/init.d/apache2 start and I'm ok with that, but one of the server managers is used to using the service command, and for some reason ...
0
votes
1answer
23 views

Increase partition size in debian server

I have a debian server instance and I need to increase the root partition size of it. I installed the parted program and took a backup first. Then I attached another 2GB volume to the instance. When ...
0
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0answers
22 views

What's invisibly eating my disk space? [duplicate]

I'm running a fairly clean ubuntu 14.04 server installation, and I occasionally start having trouble with web apps apparently running out of disk space in the root partition, however, I can't see ...
0
votes
1answer
27 views

Postfix to Postfix relaying

I've got a (possibly unusual) situation with using Postfix to relay mail to another Postfix mail server that then needs to send the email out. I've read plenty of tutorials and seen instructions for ...
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0answers
34 views

Failed DNS lookups fall back to server's hostname

My specific case I have a bunch of jobs that communicates with API's around the world. However, sometimes they fail to connect to the destination and I believe this to be a DNS issue. This is what ...
0
votes
0answers
17 views

execute local command using ProxyCommand ssh

I am trying to execute local command using ssh and ProxyCommand in sys config but getting an error cat ssh_config Host ameyj-c Hostname x ProxyCommand bash -s "/home/abc/abc.sh" ssh ameyj-c ...
2
votes
1answer
83 views

Can't allow users to log in via SSH (Bash, OpenSSH, CentOS 6.5)

I am running a CentOS 6.5 machine remotely via SSH. I use RSA keys and have disabled password authentication. The problem that I am having is that whenever I add a new user and want him/her to log in ...
1
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0answers
25 views

CentOS 6.4 - Trying to lose link, but can't

I am trying to test out active/active LACP bonding between CentOS 6.4 and Arista. One of the tests I'm doing is to shut down an interface on the host and see what happens. On the switch: Link ...
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2answers
55 views

Can I update Ubuntu with active users logged in?

I would like to run apt-get dist-upgrade, but I don't know how this will affect the currently logged in users. How can I find out: 1. will a restart be required 2. will the system be ...
0
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0answers
10 views

Changing DIR colors in terminal/ssh [on hold]

I am running centos and connecting through SSH with PuTTY, I have read in multiple threads now that changing colors can be done in nano /etc/bashrc nano /etc/DIR_COLORS At default the color is ...
0
votes
1answer
27 views

zabbix & configuration apache proxy header with headers

I wanted to implement checking a page that is available for the two data centers. However, web scenarios zabbixie 2.2.1 does not properly handle headers. I got the idea that it will use for the apache ...
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0answers
16 views

Can't change interface duplex and speed on linux

I have eth0 interface with local ip. After reboot, interface have 10 speed and half duplex. After change with ethtool ethtool -s eth0 speed 100 duplex full autoneg off\on link is down, after link ...
1
vote
1answer
19 views

rsync --iconv option on Mac not working (sync from remote Linux server to local Mac)

I want to use rsync to backup data from a remote Linux server to my local Mac. And I want to initialise this operation on my local Mac. All works fine except that there is a special character problem: ...
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0answers
8 views

Issues with Gluster and how to stress test it [on hold]

I'm new to gluster and have just installed it on 2 webservres that are about to deliver a lot of video/audio files (about 16000 files, ca. 1TB in total). What is a good way to test my websever ...
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0answers
7 views

is possible to set a default user to be shown at startup LightDM? [migrated]

Is possible to set a default user to be shown at startup LightDM?
0
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0answers
26 views

Why in 64 bit machine not able to use whole free memory as disk cache. Facing sudden disk cache drop

I know, process can use disk cache as free memory as required. In my 32 bit machine I can see, disk cache can use all free memory. But in 64 bit machine can't. In 64 bit machine, I have 252GB RAM(free ...
1
vote
0answers
8 views

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message I've created new partition(/dev/sda6) and mounted it(on /hulk). Edited /etc/fstab file to give quotas on the ...
-1
votes
0answers
29 views

PostgreSQL server does not start with increased shared_memory

I've installed a new PostgreSQL server on an empty Ubuntu 14.04 virutal server. The PostgreSQL server works fine in default configuration, so i thought it would be a good idea to improve performance ...
2
votes
3answers
148 views

tail all log files in a directory | exclude zipped files

Im trying to find the right command to tail a bunch of log files whilst excluding the zipped files in a set directory. The log files are being zipped as they become oversized. At the moment Im using: ...
-1
votes
3answers
32 views

understanding resolv.conf nameserver through system calls

I am trying to understand how /etc/resolv.conf /etc/nsswitch.conf exactly works and what is significance of nameserver entry 127.0.1.1 I did strace ping google.com to get to know about the system ...
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votes
0answers
61 views

Deliver All Emails Sent To A Server No Matter The Domain To A Single User

I am working on a solution that requires an email server that deliver all emails no matter what domain it's sent to (preferably without changing configuration with each new domain) to a single user ...
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votes
2answers
31 views

how to get a connection between Windows and Linux without an existing DHCP server

Scenario: In general a ubuntu machine (called server) runs in a network and gets an IP from it. Due to testing, sometimes a windows machine (client) is physical connected to the ubuntu machine ...
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0answers
23 views

accidently i deleted var/tmp file in centos server [on hold]

accidently i deleted var/tmp in root directory ,, and i reboot my server,, i cant login to ssh and my site in 500 internal server error, i try to restart service in whm but i cant, got error with ...
0
votes
0answers
3 views

How do I start an application after I ran the installation script? [migrated]

I've been looking around the internet and I can't find a direct answer to this. I've install Komodo IDE by downloading the .tar.gz file (from http://komodoide.com/download/) and using the tar command ...
0
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0answers
3 views

SATA controller or disk failing? [migrated]

Recently my laptop IO became deadly slow. I investigated a bit, and according to smartmon tools I have no errors on the disk, tough I'm getting a lot of errors in the syslog: ata2.00: exception Emask ...
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votes
2answers
22 views

How to remove Postfix queue messages sent to a specific domain

I have a server with multiple domains. How can I clear all Postfix queue messages for a specific domain?