CentOS stands for Community ENTerprise Operating System, the most popular Linux distribution for web servers with almost 30% of all servers using it. Third-party software is not included in the base.

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Firefox - This Connection is Untrusted - Google

I'm not sure why, yet all of the sudden I'm getting this while trying to open www.google.com My system: [alexus@wcmisdlin02 Desktop]$ cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) ...
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1answer
26 views

Is IPTABLES obsolete when behind a router?

I'm still quite noobish when it comes to networking. I was fiddling around with squid on centos and i was wondering whether turning on iptables when your centos box is behind your isp modem/router has ...
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66 views

CentOS 7/VMware Hang on Boot ([sda] Assuming drive cache: write through)

I am new in Linux. i use CentOS 7 (CentOS-7-x86_64-DVD-1503-01.iso) in VMware workstation 9. Host system is windows 8. i was trying to install the update. when i restart it hang during boot. it show ...
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2answers
21 views

I want to share the hardwares between two systems which are connected on the same network

I want to share the hardwares between two systems which are connected on the same network. I am having two desktops, one with 16GB RAM and other with 48GB RAM. Both are running CentOS minimal. I want ...
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1answer
20 views

WinSCP: wait at `searching for host` page

When I try to connect my Centos running on VMWare, WinSCP wait in searching for host line and do not connect. I've checked that SSH is up and running on port 22 of my VMWare and turned off windows ...
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22 views

Linux YUM: How to update ONLY packages with the size less than specified amount?

I am Using Centos 7 and having limited Internet at home, My Question is how can i update only those packages which cent yum asks to update with the size less than 5MB for example? (And I mean by ...
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1answer
32 views

How to configure LAN segments in CentOS 7 clients?

I created a set of VMs and I want for them to share a communication channel (or more) between them. So I added, aside the NAT interface to connect to the internet, a LAN Segment interface or two. My ...
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1answer
54 views

Check box / radio button in Linux (CentOS 7 - KDE 4) doesn't response

It happens every time I open a Setting Dialog or something like that in my System or even in all applications (eclipse etc.) When I click on the check box like this one, it just doesn't show up that ...
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1answer
39 views

host win10 can ping guest centos6 but centos6 cannot ping win10?

I use Wifi at home and my Virtualbox network mode is bridge adapter + promiscuous centos 6 network information is Winows10 can ping guest centos6 and I can use secureCRT to conncet to ...
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18 views

php-fpm downgrading php version

Current Software Version:- OS : CentOS 7 PHP : 5.6.14 After installation of php-fpm on nginx 1.8, it downgrades php to 5.4. Even though new and latest version(5.6.14) is already installed. I don't ...
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17 views

Linux - How to record speaker and mic from command line?

I'd like to be able to record my VoIP conversations. I'm looking for a solution which: Runs command line (no GUI; I want this to automate) Doesn't disrupt the audio (that is, it can record the mic, ...
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0answers
54 views

Installing zerofree on Centos 7 bare

I am trying to reclaim free disk space from a VirtualBox VM with Centos 7 as the guest OS. All of the resources I found online recommend using zerofree to zero out the free disk space before ...
2
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1answer
31 views

ssh force tty return extra non-printable character

I know ^M will show up when ssh -t, ref1, but I don't catch the situation when ssh -t into Centos 7.2(even Centos 6.2 is OK, but no difference between their environment vars). Anyone know about this? ...
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1answer
49 views

How to set 644 file permissions for newly created files and 755 for newly created directories?

I have an e-commerce site in Magento. When I upload a file using the administrator, the folder is created with 770 permissions, and the actual file is also created with 770 permissions. Cause of ...
3
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1answer
43 views

Does Open Broadcaster Software install in CentOS6?

How can I install Open Broadcaster Software on CentOS 6.7?
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1answer
35 views

Nginx serving C++ cgi script: response is binary format

I am trying to run C++ CGI script on nginx. I am using FCGIWrap with script from nginx website. The program code is like this: #include <iostream> using namespace std; int main () { cout ...
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0answers
68 views

Can't install python requests library on Centos 5.11

I'm running Centos 5.11. I'm trying to install the python requests package. But pip keeps giving me syntax errors. pip help returns [root@32437-201824 bin]# pip help Traceback (most recent call ...
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14 views

Installing Spamassassin on CentOS - no external emails come in

I've installing Spamassassin on CentOS 7, with postfix and dovecot. Local mails work fine- but no external emails (other than my domain) come in. I disabled Spamassassin; all worked fine again. The ...
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78 views

xenserver 6.5/centos 5.10 parted/glibc upgrade missing dependency that is not missing

I cannot seem to find the official best way to get round this issue: $ yum --enablerepo=base --disablerepo=citrix install parted Loaded plugins: fastestmirror Loading mirror speeds from cached ...
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1answer
28 views

Confused about Putty colors - Centos 7

So I am using nginx as my server if that helps at all. I also use Putty as my connection manager as well. So while setting up domains here and there under nginx, there seems to be a difference in ...
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0answers
66 views

systemd-udevd.service ignoring 60-net.rules

I've tried my hardest to get this to work without asking for help. I can't figure it out. I have a machine that has 6 ethernet ports. I want them to be consistently named eth0 through eth5 just as we ...
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45 views

Apache 2.4 tuning - idle workers during load

I have setup: CentOS 7, Apache 2.4 + mod_disk_cache, PHP 5.4 + opcache (haven't yet added memcached for sessions). Apache is running in event MPM, and PHP is accessed through mod_proxy_fcgi to ...
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1answer
18 views

How to change centos partition to LVM

all I have centos installed in vitual machine, but its partition is in old style, now, I need to change it to LVM. Is it possible? And how to do that? I don't want to reinstall the system. Thanks in ...
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1answer
33 views

Allow PHP to execute in a specific subdirectory, when parent directory is denied?

I operate a small shared server and would like to give some of my users the ability to execute PHP code from the browser (but not all of them) but have been unable to do so. In the top level ...
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1answer
48 views

Not detecting network card in centos 7

In my VMware Workstation I have installed CentOS 7 but it is not showing any network card. When type lspci I am geting :*-2:00.0 USB controller: VMware USB1.1 UHCI Controller 02:01.0 Ethernet ...
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25 views

Remove backups older than 7 days except first of every month

I want to delete backups older than 7 days but keep the first of every month. The name of the files is name_$(date +\%d\%m\%Y).tar.gz I want to keep name_$(date +\01\%m\%Y).tar.gz I want something ...
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1answer
14 views

What is the minimal lines of text needed for a desktop entry to autostart after GUI login?

Most desktop Linux distros allow you to autostart applications in a flexible manner as described in Freedesktop.org's Autostart spec. There are two steps: 1. mkdir -p $HOME/.config/autostart 2. create ...
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125 views

SELinux is preventing nginx from write access on the Unicorn socket

I'm trying to setup my Rails application with Nginx and Unicorn. Nginx throws following error by accessing root url of my Rails-app: дек 14 23:39:42 servercentos7 python[5604]: SELinux is ...
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0answers
43 views

How to install Gnome Schedule in Cent Os 7

I tried to install gnome-schedule in cent os 7 but it throws following error but the same package works well in ubuntu. Download url: http://gnome-schedule.sourceforge.net/ gnome-schedule-2.2.2 ...
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1answer
97 views

Kiosk mode and auto login and single application mode in CentOS

We have a machine running CentOS 7, GDM, KDE 11 (installed from CentOS DVD) We have been struggling a few days with this issue, tried to search for a solution but unfortunately most of the ...
2
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1answer
81 views

CentOS 7 USB won't boot

I currently have a Windows 10 laptop that I am trying to reformat to make it run CentOS 7. The laptop does not have a CD/DVD drive, so I am trying to use a flash drive to reformat it. On Windows, I ...
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1answer
42 views

MATE: how to increase window resizing area

I use MATE on CentOS 7 and Ubuntu 15.04 and with both I have trouble resizing windows. It seems like I have to click on a 1px size line to change and that's a bit difficult with touchpad sometimes. ...
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0answers
26 views

Is it possible to “peek” on another users session on the command line

I have deployment systems which connect via SSH and execute tasks after uploading files (namely deployhq.com). In my instance they're connecting to CentOS, Wheezy or Jessie servers. I only get ...
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47 views

Giving FTP user permissions to directory using vsftp and CentOS

I have done the following: useradd Max passwd Max usermod -d /test Max My vsftpd.conf: chroot_local_user=YES My /etc/passwd: Max:x:500:500::/test:/sbin/nologin Upon logging into FTP via ...
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1answer
12 views

Swapping ctrl and cmd key on centOS

I'm running CentOS 6.7 on virtual box 5.0.4 using a macbook air laptop. I'd like to use the apple cmd key instead of ctrl just to make life easier for copying, pasting, etc.. How would you do ...
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1answer
56 views

What causes phpVirtualBox's remote desktop server port to be crossed out?

I am running VirtualBox 4.3.34 on Centos 6 host with Windows 7 guest, have installed guest additions, and also installed phpVirtualBox. Previously, I was able to remote desktop with a Windows 7 ...
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1answer
67 views

Unable to connect yum repo [duplicate]

When I am running yum install getting following error. root@datanode# yum list CRITICAL:yum.cli:Config Error: Error accessing file for config file:///etc/yum.conf root@datanode# rpm -ev yum ...
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0answers
24 views

Serve auto-generated zip files with small footprint

I currently use mod_zip/nginx(for automatically generating zip files). The (very very big) issue with mod_zip is - when it accepts range requests - it doesn't pass ranges to subrequests. What ...
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1answer
57 views

Centos 7 bind returns nothing

I have tried making a dns server, but when i do the dig command the server returns nothing. I have not had any prior experiences and am only following this tutorial: ...
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0answers
22 views

ssl-params process killing VM on AWS

I've installed iRedMail on a free ec2 instance on AWS to try it out. After some initial teething issues I've got it working ok for receiving mail however after initial install the process ssl-params ...
-1
votes
1answer
34 views

VirtualBox Centos Not having network connection

After reading several posts on the above topic, i was forced to post this question because i m still stuck. I am running internet connection on MAC OS X el captain(wifi) and trying to run internet in ...
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1answer
58 views

Centos 7 bind issue

I am trying to configure a bind dns server on Centos 7. I have no previous knowledge on setting up dns servers, i am following this ...
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1answer
43 views

Cannot update mongodb 2.4 on centos 6.6

I am trying to update my mongodb 2.4 to 2.6 but I can't seem to download all the packages. I successfully downloaded all of it before except mongodb-org. I ran yum clean all to clear the cache that ...
0
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1answer
25 views

Connection timed out when connecting to a remote tcp port

I have deployed my application on Linux CentOS. The app connects to a remote TCP port but it throws a connect timed out exception. I tried to connect it via telnet but the port doesn't respond. I am ...
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0answers
50 views

EC2 Ubuntu cannot SSH out, Permission Denied (publickey)

I just set up an EC2 instance running Ubuntu, logged in, added public keys for the various computers/devices i use daily, and tested all of them and they worked. I logged into the EC2 machine, ...
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2answers
28 views

Can access VM Guest IP from Host but not from other computer on same LAN

I am hosting a web application on a Linux (CentOS 6.7) Virtual Machine guest, that is sitting on a Windows 7 host. I have configured a bridged network connection between the host and the guest, and ...
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0answers
17 views

correct format of file operator in linux

I am trying to execute file:///run/media/CentsOS 7 x86_64/repodata/repomd.xml but it says that directory is wrong. Have I use '' somehow so it could be recognized properly? (CentsOS 7 x86_64 ...
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22 views

Permissions are not set for some folders in linux

I ran this command in my CentOS 6 server. I am logged in as root: find public_html \ > \( -type f -exec chmod ug+rw,o+r {} \; \) , \ > \( -type d -exec chmod ug+rwxs,o+rx {} \; \) It works, ...
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7 views

How to go and list files of the mounted DVD in CentOS

How to go and list files of the mounted DVD in CentOS? Also how to get the proper name of the mounted DVD?
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1answer
12 views

How do I install Apache with PHP support and the MySQL server on centos without using any ready-to-use packages like WAMPServer or XAMPP?

How do I install Apache with PHP support and the MySQL server on centos 6.4 desktop environment without using any ready-to-use packages like WAMPServer or XAMPP ?