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Questions tagged [centos]

Community ENTerprise Operating System; a Linux distribution based on Red Hat Enterprise Linux widely used on web servers.

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11 views

Can I add a `ifcfg-eth1` network script directly?

I have a CentOS6.9 VM, and in it, there is network scripts: [root@localhost /]# ls /etc/sysconfig/network-scripts/ ifcfg-en0 ifdown-ipv6 ifup ifup-plip ifup-wireless ifcfg-eth0 ...
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1answer
16 views

Return to ec2-user from a custom user

When creating an ec2 instance I use a bootstrap script. On the instance I install and configure an nginx web server. For security reasons, I need to create a new user (www-data). The www-data user ...
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12 views

How to install Parse Server on CentOS Server? [on hold]

I've got a server: CentOS 7.5, Intel i7, 16GB RAM, 120GB SSD Is it possible to run Parse Server on it? If so how can I install it from WHM & Cpanel? I searched about it. But most of the articles ...
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14 views

Tracepath not working in Centos 7 with Vagrant

I'm attempting to use tracepath to get the traceroute for a bunch of URL's, but it's not working correctly. For every URL I try It just returns the same result e.g [vagrant@centos7 ~]$ tracepath ...
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0answers
23 views

Smartcard authentication on CentOS

I tried to implement a smart card authentication in a Samba4 domain (Samba AD). Currently I have two domain controllers (CentOS), a file server and several clients (CentOS and Windows). In regards to ...
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0answers
14 views

VMware Host-only connection to web server from host

I've set up apache and the relevant firewall services on CentOS 7. If I set the network to bridged then I can access the web server from the host computer using 192.168.0.87. However when I change ...
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1answer
32 views

ArchLinux Virtual Machine can only be logged in through SSH after logging in through virt-manager

I installed two ArchLinux virtual machines on my CentOS server with virt-manager on KVM. The ip addresses are 192.168.1.138 and 192.168.1.183. After installation, I installed OpenSSH and copied the ...
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0answers
12 views

CUPS on RHEL: Duplicate One Printer's Config (not all of cups cfgs) to Add Identical Printers With Same Configuration

I am just looking to take the settings of one printer (intermec px4i) and clone them(only editing hostname and addr.) or make some sort of template so i can add the rest of the px4i's on our network. ...
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1answer
7 views

Setenv list edit Centos 5.11

Been looking for an answer but nothing seems to give me a simple one-liner answer (I am not a computer genius). I want to edit one of the variables (I see them with setenv commant) on a centos 5.11 ...
3
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1answer
3 views

Problem with shared folder SAS University Edition on a Mac using Parallels Desktop

I've managed to install the SAS University Edition (SASUE) as a VM on Parallels Desktop 14. The appliance works, but the shared folder is not showing up. I managed to install the Parallel Tools onto ...
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1answer
10 views

windows network drive linux mount requires sudo after mounted

I am able to mount a drive to the linux box using sudo. sudo mount \ -t cifs \ -o 'vers=3.0,username=myuser,domain=mydomain' \ '//windows-ip/share-folder' ~/testmount/ This works great, ...
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0answers
64 views

Tunnel Gre between two hosts (vps and dedicated server)

Hello guys i need to resolve this problem (all server have installed centos 7): i'm trying to create a gre tunnel through vps (in Italy - OpenVZ) and a dedicated server (in Germany), but they do not ...
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1answer
34 views

use du to exclude mounted volumes but check root volume only

I am trying to check my disk usage, because my root volume is full. I'm on Centos 7.5. I thought that giving du the -x flag gets it to ignore mounted volumes. But when I check my disk usage on this ...
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0answers
15 views

FTP on CWP stucks at 'Retrieving directory listing…'

I have setup CWP on CentOS 7 in Digital Ocean droplet. I have created some FTP accounts (On default PureFTP server) and trying to access FTP through FileZilla on windows. FTP server is configured with ...
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0answers
35 views

LUKS passphrase-less setup is not working on CentOS

I have a CentOS 7.5.1804 setup with LVM on LUKS device. Logical volumes of LVM are automatically set up when its installation with disk encryption. A boot partition(/boot) which is in /dev/sda1 is not ...
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1answer
14 views

CentOS won't boot when disk is removed

In my system I have a boot drive (xfs) and a RAID (ext4). The RAID is /dev/sda so I have added that in fstab to auto-mount at startup. /dev/sda /mnt/RAID ext4 defaults 0 0 Today ...
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1answer
37 views

Using git command without sudo on CentOS [closed]

I would like to use git without taping sudo everytime i tape a command on CentOS and i have no idea how to do it. I checked on google and i found this some command with chown but none of them worked ...
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1answer
50 views

Working ssh but cannot use scp. How?

We have this requirement that we may able to communicate with each other by SSH but we cannot copy files from the other computer using SCP. For example, we have 2 computers, which is computers 1 and ...
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0answers
51 views

SSD secure erase on RAID card (Linux)

My SSD RAID write performance has slowed dramatically from when it was new, so I want to use the ATA "secure erase" command to restore it. From my research, this is the best way to restore ...
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0answers
20 views

Rocks cluster export partition recovery

We have a rocks cluster and apparently, the export partition has been deleted by rm -rf. We have tried several tools (ext4magic and extundelete) to recover this partition with no success. Actually, ...
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1answer
32 views

Is it possible to use openvpn and apache together? [closed]

I have a production server that serves my site. I am using apache, mysql and nodejs for my site. If i install the openvpn for using my personal purposes, not reverse proxy or something what happens? ...
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0answers
18 views

Telnet not working from a specific server to specific port

I am using 2 servers (A and B) centos 7. I am trying to telnet from A to mail.smtp2go.com serverA$ telnet mail.smtp2go.com 2525 Trying 45.33.53.153... telnet: connect to address 45.33.53.153: ...
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1answer
16 views

Error when attempting to boot Centos 7 install from pen drive

I followed the instructions here: https://wiki.centos.org/HowTos/InstallFromUSBkey In an attempt to install Centos 7 in a work laptop which currently only has FreeDOS. This was the exact command I ...
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53 views

VirtualBox: menu / task bar not visibile in seamless mode

I have the following setup: Host: Windows 10 Guest: CentOS 7 VirtualBox: 5.2.18 With the latest guest additions installed I can enable seamless mode for the virtualized CentOS but that hides the ...
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0answers
9 views

FlexNet lmgrd license server configuration

I am new to administration. Currently, I am setting up license server on local server with centos 7. I have TWO separate license keys from the SAME vendor, which are issued to different HostIDs. ...
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0answers
33 views

Why is my custom centos kernel not booting? No source changes were made

I followed this guide to rebuild my 3.10.0-327 kernel (CentOS 7.2): https://wiki.centos.org/HowTos/Custom_Kernel I will be making changes to it, but even if I make no source changes, it does not boot ...
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1answer
21 views

Change Refresh rate on hyperv_fb driver

I'm using a guest CentOS 7 in HyperV. I managed to change the resolution of the screen, but it has a really low refresh rate. Is there a way to improve the refresh rate?
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0answers
25 views

ffmpeg: mix/merge multiple mp3 files, some do not mix

I am trying to merge multiple mp3 files on top of each other on a CentOS 7 server. I am trying with ffmpeg but I have mixed results. When mixing 4 files, the last one for example does not mix with ...
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0answers
29 views

CentOS 7 ssh failure

Hi I recently installed a Virtual CentOS 7 Minimal to my computer on KVM. Didn't change default sshd_config since it seemed okay to me. I opened ssh port on firewalld Ssh service is running and i can ...
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0answers
28 views

remote desktop into centos using domain authentication

Trying to configure rpd into a gnome dekstop on top of centos for a practical in class... struggling to find directions that will use ADDS authorisation to allow users to log in. i have done this ...
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0answers
85 views

/usr/sbin/vbox-uninstall-guest-additions - uninstall.sh: No such file or directory

ISSUE I am using dotless' vbguest vagrant plugin to keep my Virtualbox guest additions updated. Trying to install guest additions now using $ vagrant vbguest --iso VBoxGuestAdditions_5.2.18.iso --...
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0answers
54 views

Stand alone in.tftpd TFTP server cannot write file

I am trying to run TFTP server on CentOS manually, without using xinetd. I started in.tftpd using in.tftpd -l -c -v as root. From /var/log/messages, I am seeing a repeated output of: Aug 22 21:32:50 ...
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0answers
45 views

centOS “net_status_connection_refused” error

I have a Centos machine in my Active Directory. I try to retieve some information about the Active Directory so I am using the net commands. However I get some errors when I run "net domain" I get : ...
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0answers
15 views

How to list all packages within a mirror in CentOS 7

Recently I have gotten a VPS and running into some problems with installing packages. It's a VPS that runs CentOS 7 + DirectAdmin 1.5.3 After some searching around it turned out that the default ...
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2answers
33 views

CentOS bind9 server keeps getting error messages from master ADDNS

For the last couple of days, I have been trying to connect my Bind9 server to my AD's DNS as a secondary zone, to no avail. This is all done on VMware, with pfSense connecting the two (yes port 53 ...
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0answers
52 views

How to SSH second user to Linux server (CentOS)

I connect to my DigitalOcean droplet (linux CentOS server) through SSH with root user. It's workin fine without any problem. But when I try to connect to my server through second non root user it ...
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0answers
12 views

Installing CentOS 7 with a “kickstarter” file using a unmodified ISO file

Are there a way of installing CentOS 7 (Minimal install ISO) with a Kickstart file without altering the original ISO from CentOS? I read somewhere I should be able to press "TAB" to bring up a screen ...
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0answers
22 views

squidGuard does not filter traffic

I am trying to setup squidguard with squid proxy. It does not seem to capture any traffic or does not match any sources Package details Proxy: Squid 3.5 OS: Centos 7 SquidGuard Verion: ...
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0answers
30 views

Unable to wake up sleeping processes “hidden” after disconnecting from remote desktop

Connecting to a remote CentOS 7 desktop from Windows 10 Remote Desktop Manager and after disconnecting from the server, all of the previously open process appear to be hidden and asleep (normally I ...
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0answers
22 views

LDAP Authentication with -W (fail) vs. -w (succeed)

I am using the OpenLDAP client utilities with the 389 directory server under CentOS 7.3. In the example below, why does authentication fail when I use -W to specify that I want to be prompted for the ...
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0answers
16 views

Cannot read clients from nas table in freeradius only with clients.conf

I have installed freeradius on Centos. The MySQL database is populated with some data for testing, and the freeradiusd.conf and sql.conf are configured. The RADIUS server is able to connect with the ...
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0answers
32 views

How can I get yum to work without root?

If I make all folder in the root directory world writable, something like: sudo chown 777 -R / Would this enable yum to work without root privileges? If not, is there a way similar to this to make ...
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0answers
31 views

How this network configuration works on Centos

I have some pretty basic knowledge about networking and linux, however a virtual server I provisioned in Strato has a strange configuration that I cannot understand. #ifcfg-lo content DEVICE=lo ...
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1answer
29 views

Yum Repo issues

My CentOS-Base.repo has the following mirrors: [base] name=CentOS-$releasever - Base baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-...
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1answer
30 views

Losing Kerberos Ticket after SSH to Current Host and Exit

I am running on CentOS 7.3. How may I prevent losing my Kerberos TGT in the scenario below? I understand the security implications of not destroying Kerberos tickets upon logout, and I will be ...
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0answers
81 views

How to fix differences in Font Rendering between Fedora (27/28) and CentOS 7

We are hosting a virtualized desktop for web stack developers on vmware. Currently, the developer box is based on Fedora (27/28), but I would like to move it to CentOS 7 since it's closer our Red Hat ...
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1answer
37 views

How to re-enable graphic driver on a CentosVM?

I'm working on a Centos 07 virtual machine with Gnome desktop hosted on VirtualBox. Today I perform a "yum update", it upgrades 2K package, and when I reboot I see my screen resolution restricted to ...
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0answers
47 views

ovftool net mapping not working

We are in process of deploying Centos-7.4 with Ovftool by using below command, which works fine to deploy a VM. The problem is ovftoll not mapping networks and properties specified. We are able to see ...
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0answers
16 views

Centos 7 takes 2Gb Ram after 3,4 idle hours

My Centos 7 Server takes from 160Mb to 2Gb Ram after 3,4 idle hours without any applications or services running, See htop response for more detail Htop Response . Whenever I start my apps (...
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0answers
13 views

Building R-3.5.0 on CentOS 6.5: /usr/bin/ld: crtbegin.o: No such file

Because I don't have privileges to use the package management tool on our cluster, I'm trying to locally build R-3.5.0 on CentOS 6.5 from source. We have an old version of R installed for all users, ...