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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CentOS on VMWare Workstation - Anyconnect VPN and connection to local network?

I'm not sure how to do what I'm hoping to be able to do, and so far I haven't been able to find anything that shows me, so I figured I'd ask. The host computer is running Windows 7. On Workstation 10 ...
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2answers
105 views

Why does systemd process stop as soon as it starts for foreman server process?

I am trying to export a simple Ruby app using foreman. Based on its usage for systemd, I appear to be doing things correctly. However, when I start the target/service, I get status messages along the ...
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389 views

After installing minimal Centos 7 on computer, unable to boot on Windows 8.1 using grub2

I have installed Centos 7 minimal on computer, where was only already installed Windows 8.1. After that, I'm unable to boot Windows, whatever is the boot order in Bios, only grub2 with Centos start. ...
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13 views

FTP tranfer is kept on hold

I've set up a PROFTP server on a CentOS 7 machine. And I am accessing it from other machines (with windows servers) to send files to it. I've created some rules to only enable to STOR files to a ...
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2answers
65 views

Is this a crash or a planned shutdown? “The system is going down for system halt NOW!”

Linux noob. This message was in my SSH console this morning. The system is going down for system halt NOW! Did an admin shut this VM down or did it crash?
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1answer
163 views

How to change the default port number for Telnet in CentOS 7?

I need to enable Telnet in a port number other than 23. I installed use telnet through following procedure. systemctl enable telnet.socket systemctl start telnet.socket I tried some procedure to ...
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80 views

CentOS install boost 1.54

I need to install a specific version of boost (1.54) on my CentOS. How can i do that with less pain? Ways i know of: 1) Find ready rpm package. As far as i know, there is one in Fedora 20 - but how ...
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1answer
13 views

How to launch executables in parallel on CentOS?

I need to run several executables in parallel from terminal (ssh). They all must have same home dir (not /). How can i do that?
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95 views

CentOS hhvm hphpize

I've installed hhvm 3.5 on CentOS 6.5 and I need mongo in it. So I'm trying to install proper extension but, it seems like my hhvm is missing hphpize needed for compilation, how should I install it? ...
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31 views

How to permanently change the Timezone settings in Linux

I am running CentOS and want to have a different timezone on the server. I followed the easily available instructions on how to change the timezone and symlinked the proper timzeone data. However, ...
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1answer
109 views

How can I prevent users from delete files/folders but can add/modify on linux?

I have a folder my_folder which contains files and folders my_folder |-- my_sub_folder | |-- my_file_1.txt | |-- my_file_2.txt |-- my_sub_folder_2 | |-- my_file_2.txt I want to set permissions ...
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14 views

Undo cancelling a major installation / Wipe a Cloud host of everything except its operating system

I have a cloudatcost server registered with centOS. I installed the first bit of software there, apache, then installed mariadb. After running mysql_secure_installation, I accidentally closed it. When ...
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87 views

Can't resolve my name when under VMware workstation

I have a VMware workstation on main host running 'CentOS' and 'Windows Server 2008.' The Main host is behind enterprise network environment with Cisco/Juniper routers and switches. I have an AT&T ...
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85 views

Nodejs remote debugging ports closed

I have a problem with nodejs remote debugging. I'm using centos on remote server and phpstorm on my PC. When I open putty I type the command: node --debug-brk=5858 main_server.js, and get the ...
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44 views

Close terminal if exit code is not 0 for command after login

For security, I'm trying to set up double authentication for a CentOS server. The way it works is you log into a user with SSH keys then once you log in it executes su to change to the root user, ...
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323 views

How to unpack rar archive with p7zip under Centos 7

I'd like to make my 7z command to be able to extract RAR archives. I have installed p7zip and p7zip-plugins packages from EPEL repository. However, if I try to extract a rar file like this: 7z x ...
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51 views

nginx is still linked to old openssl

We're running CentOS 6.5. We recently updated via yum: OpenSSL to OpenSSL 1.0.1e-30.el6_6.4 nginx to nginx-1.6.2-1.el5.ngx However, I noticed that even though nginx was configured to use TLS v1, ...
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59 views

Mass Rename Files including sub directories

I have many file having "example.com" in them and I want to replace it with "example.co" as i change my site tld, i have rename program installed in my server and have root access too. Can anybody ...
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15 views

CentOS two sets of kernel packages

On my CentOS 6.2 system the rpm -qa command shows two sets of kernel packages and sources: kernel-2.6.32-220.el6.x86_64 kernel-2.6.32-220.7.1.el6.x86_64 kernel-devel-2.6.32-220.el6.x86_64 ...
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1answer
475 views

Virtualbox: Windows 8.1 Host, Centos 6.6 Guest: No guest internet access

I'm moving to a new Win8.1 laptop (fully updated) with Virtualbox 4.3.20 installed, and my freshly-installed CentOS 6.6 guest (with Guest Additions installed) has no internet access. This is my first ...
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221 views

wget stops downloading: Cannot write to `-' (success)

Please have in mind that I don't know anything about servers, nor any of its vocabulary, I am a simple web coder, trying to figure my way on the universe! I'm trying to link dropbox on my server, I am ...
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50 views

Is there a way to 'clean out' physical memory (RAM) that is tied up on my Centos/Apache webserver?

I am developing something that requires Server-side javascript, and as such am using PhatomJS to run the JS. It uses up about a 1GB of physical memory when all is well, but if I screw up some ...
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18 views

Tor Not Running on Server Always?

I have a Perl script that uses Tor for scraping certain data. It was working perfectly and then my script started having issues with scraping. After a bit of investigation, I realized that Tor ...
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10 views

Nating on linux boxes for private network

I have a private network set up with IP numbers ranging from 192.168.1.7 to 192.168.1.100 need to configure 192.168.1.15 to 192.168.1.100 restricted to private/internal network. would like to use one ...
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66 views

Grub boot to rescue CD

I have a virtual machine (Centos 6.2, fwiw) that hangs on fsck. I can get to a grub (pre grub2) menu. Is there a way to have it boot to the rescue CD (Centos 7 Live) I've attached to this VM? The ...
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110 views

nginx php can't write files on centos machine

I have this PHP code: <?php $myfile = fopen("testfile.txt", "w") ?> And the following permissions in my '/usr/share/nginx/html' directory drwxrwxrwx. 3 root root 4096 Nov 20 08:51 . ...
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173 views

NTPD not updating time date on CENTOS

I have set up ntpd on CENTOS, I am trying to get it to pull time from a Windows domain contoller if i run the command: ntpdate dc3.mydomaain.local this works fine and updates the host with the ...
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135 views

Mac OS X 10.10 Yosemite + vmware 6 + centos

Ok, so I'm running a 2014 mac book pro retina 8gb ram, I5. Just upgraded to Yosemite with vmware 6. I've installed centos MINIMAL, here the thing centOS in command line runs DEAD SLOW. I've even ...
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107 views

Centos install using KVM stuck on trying to access install.img

Greeting Folks, I am trying to install Guest or DOMU on a remote server and every time I try is get stuck at Retrieving /install.img. I believe its a network setting but am not entrely sure. Here is ...
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346 views

CentOS 7 can't ping from server

I'm having a Strange issue with CentOS 7. I have my server setup with 2 NICs a private network and a public network. I'm able to ping the server on both the private and public IP. But I cannot ping ...
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54 views

How to access the service on the server which act as the VPN Gateway as well?

I am currently running a VPN Gateway by Strongswan on a CentOS 6.5 VPS. The CentOS server has one eth port. The VPN is using IKEv2 and the connections between clients and server are established. The ...
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2answers
41 views

Yum doesn't list a package I'd like, now what?

I'm Linux ignorant. We're using CentOS and I have a need to install something called git-up and I understand that package managers are how you install everything onto Linux. CentOS has yum but the ...
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88 views

/sbin/php-fpm works while /bin/php doesn't

Compiled php 5.6.3 on centos with the following ./configure: ./configure \ --with-zlib-dir \ --with-freetype-dir \ --enable-mbstring \ --with-libxml-dir=/usr \ --enable-soap \ --enable-calendar \ ...
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1answer
115 views

Samba fails to connect to VMWare CentOS guest from Mac Mavericks host

Trying to connect through smb to my VMWare guest at 192.168.0.138:139 gives me the following message: There was a problem connecting to the server "192.168.0.138" This file server will not ...
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2answers
170 views

Accessing a CentOS 7 server running on VirtualBox from outside

Is it possible to access my Apache server from outside the VirtualBox on Google Chrome browser on my host computer? Its running on CentOS 7 on VirtualBox. I have tried connecting to the ip address of ...
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1answer
216 views

RVM - Multilib version error installing libffi-devel on Centos 6.6

I have a Digital Ocean droplet running CentOS release 6.6 and I need to install Ruby and Capistrano on it. I've been following this idiot's guide; ...
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1answer
74 views

Linux temporarily thinks disk is full

I’m working on a Linux server with CentOS 6.5 and a NAS NFS on a QDR Infiniband network. I am running a bash script that basically creates a directory, makes symlinks inside of it, and cats together ...
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88 views

CentOs stopped working after update in VirtualBox

I recently updated my OS to centOs 6.4 in virtual box. Before update I had guest additions installed and everything worked fine. The screen resolution all was fine. After update to 6.6, the OS stopped ...
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1answer
978 views

Issues with Network interface card in CentOS 7

I have just installed centOS in machine having 4 NICs. CentOS detected 2 of them but two or them are still missing from network manager. Both two of them are of same kind, I suspect that it's a driver ...
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4answers
1k views

CentOS 7 ESXi/VMware Hang on Boot

I installed CentoOS 7.0 1406 on a VMWare ESXi 5.5 hypervisor. I installed "Sever with GUI" and selected KDE. However on boot I get the following messages in under a second, before the process tops ...
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1answer
47 views

Running ZIP Process in Background in CentOS

How can I run the following command/process in background immediately after starting it: zip -r file.zip directory/* What I actually want to do, is to run the zip process working even after ...
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19 views

bchb.pfa missing in CentOS 6

With some application, I get the following error message in CentOS 6.6: FreeType: couldn't open face /usr/share/fonts/default/ghostscript/bchb.pfa: 1 Indeed, when I "ls" this directory it contains ...
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2answers
125 views

Multiple internal networks on Virtual box (CentOS)

I have 3 NIC's (internal network) on one Virtual box Machine(CentOS 6.4) each NIC has its own network name intnet1,intnet2 and intnet3. So how I understand this is eth0 is connected to internal ...
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97 views

Execute Virtual Box Shared Folder Mount on Startup on Cent OS 7

I try to execute a mount command on startup in Cent OS 7. With FSTabs it did not work, so I tried the following: Creating the folder vbox-shared-folder-mount.service with the following content: ...
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500 views

How to save Crontab edits?

I ran crontab -e and made some changes, now how do I save it?
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1answer
101 views

Can't access XAMPP after changing iptables

I've been working on a web application in a CentOS 7 machine and testing it in a Windows machine. Both machines are in a LAN network and I have access to the centos machine using VNC viewer and ...
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2answers
114 views

Where can I get Centos 6.5?

I am deploying a product for my department which calls for CentOS 6.5. When I browse the CentOS downloads, I am only seeing 6.6 available with no means of finding 6.5. Our vendors have only stated ...
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1answer
47 views

CentOS 5.x - `inittab` failing on `rc.d` calls

I have several servers that run some python scripts at the end of the inittab. I have one server which is having issues and the scripts weren't running. With troubleshooting, I found that if I moved ...
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1answer
14 views

How to get the service location in Linux box (Centos)?

I am using below command to get list of all running services on Unix box:- service --status-all For the list of running services which are returned, I need to know the install location/path of each ...
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25 views

CentOS 6 with User Permission (Read at message)

I have create users on CentOS 6 between test1 and test2 so I login on user test1 on ssh and i tried to access home dir of test2 so why it can access? how i can setting for other users can't access ...