CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.

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3
votes
1answer
967 views

What's wrong with this udev rule?

I'm reading through this link in trying to make the appropriate rule to make the BSG device nodes have group ownership of wheel and permissions of 0660. This is the rule that I have: [user@mylinux ...
0
votes
0answers
16 views

Asus T101 Touchscreen Not Recognized

I'm running CentOS 6.6 x86 on an ASUS T101-MT which originally came with Windows 7... Is there a way to get the touchscreen to work? I couldn't find any answers for this online and everyone seems to ...
1
vote
1answer
42 views

scp a file from one server to another one, got “permission denied”

source server IP 162.244.xxx.xxx file -rwxrwxr-x 1 user1 admin 36005278 Sep 10 2013 filename.tar at destination server scp user1@162.244.XXX.XXX:home/filename.tar ./ got a Permission ...
0
votes
0answers
32 views

Port randomly closing (iptables)

I'm running CentOS 6.5 on a VPS and one of the services I have running is murmur/mumble (A voip application). The issue I'm having is that the port clients connect on will be open when I initially ...
40
votes
9answers
59k views

Is CentOS exactly the same as RHEL?

I'm sure this question has been asked again and again elsewhere (I did not find anything specific to CentOS vs RHEL in SE), but I would still like to ask and confirm a few specific points. I am well ...
2
votes
1answer
606 views

can't connect to samba drive in centos 6.3

#smbclient //ballzdeep/torrents Server not using user level security and no password supplied tree connect failed: NT_STATUS_BAD_NETWORK_NAME Does this mean i need to require username and password ...
0
votes
1answer
28 views

cannot connect mobile device to tomcat on Centos Linux

i have my web services in local and run in Tomcat and it works (in local). Now i want to connect from smartphone browser to this tomcat. For example my Pc have ip:192.168.1.140 and my ...
1
vote
0answers
45 views

centos virtual machine not registering with intranet dns server

When I am creating a Ubuntu virtual machine on virtual box it automatically registered with DNS server in my intranet network, it has both intranet IP and domain name. When creating CentOS virtual ...
0
votes
0answers
95 views

Samba 4 has high CPU usage when accessing mapped drive through Windows

I have noticed that when I access my Samba share from Windows, the smbd daemon will always use aprox 10-20% CPU - no matter if the share is used or not from Windows. Even if I close the share/window, ...
1
vote
0answers
8 views

VSFTPD Home Directory CentOS 6 [duplicate]

I’ve installed vsftpd on my CentOS 6 server and it works fine. I’ve created a user and can connect to the server and edit files in that users home directory fine. However, I am trying to be able to ...
2
votes
1answer
4k views

CentOS Local User not able to view directories/files via FTP login

Currently running CentOS 6.5 with vsftpd. As a newbie, I would like to explain my process and then have the proper process explained back to me from scratch which I believe will solve my issue. I am ...
1
vote
1answer
36 views

java upgrade problem on centos 6.5

I want to upgrade my jdk on a centos server, after some simple searches i found some solutions. From this link, you can see that the instructions are simple: jdk 7 installation guide for centos ...
2
votes
1answer
57 views

GRUB2 not detecting Windows; rootnoverify: command not found

Story: I had Windows on one partition, and an unallocated partition. I then installed CentOS 7 on the unallocated partition. (I selected the option for the installer to automatically create the ...
0
votes
1answer
124 views

Does all packages included in CentOS Everything ISO get installed along the base system?

The Everything ISO for CentOS is significantly bigger than the regular DVD ISO because it contains a lot more packages. Question: are these extra packages all installed automatically when I install ...
1
vote
0answers
87 views

Port Forward For OpenVpn

I have setup a OpenVPN server on CentOS 6, and it starts ok when i /etc/init.d/openvpn start it shows me Starting openvpn: [ OK ] so far so good, but ...
1
vote
1answer
28 views

How to install openstack havana (compute) in centos?

I am working openstack havana, so how do I install openstack havana on centOS? When i try to install it I get this error: Loading mirror speeds from cached hostfile base: centos.excellmedia.net ...
0
votes
1answer
135 views

Route Client Traffic Through VPN Tunnel

I have configured a vps following this tutorial, the server and client are successfully connected and can ping each other, server is at 10.8.0.1 and the connected client (android-OpenVPN Connect) get ...
1
vote
1answer
23 views

Configuring Named DNS zones (Centos7), specifically CNAME

having trouble with some DNS configuration, I have managed to get part of the site working, however adding the prefix 'www', I'm finding a little tricky. Essentially, what I want is mysite.net -> ...
1
vote
1answer
64 views

CentOS-7 Kernel Image has a “debug” suffix after a Kickstart installation

After finishing a customized CentOS-7 kickstart installation from a CDROM, the system has booted as expected and according to the ks.cfg file. At the grub menu the options I have are: CentOS Linux, ...
2
votes
1answer
82 views

Curl failed to read known_hosts file

I'm trying to download a file from a Centos 6 server using another Centos 6 server as client and curl with the scp protocol and I'm getting this error output: $ curl -v -O scp://cz/path/to/file * ...
0
votes
2answers
53 views

Tomcat 8 doesn't start

Upgraded tomcat 6 to 8 on Centos 7. I get this error in logs: /usr/local/ctera/apache-tomcat-8.0.14/bin/catalina.sh: line 421: -Djava.endorsed.dirs=/usr/local/ctera/apache-tomcat-8.0.14/endorsed: ...
0
votes
0answers
29 views

Permissions doesn't change while mounting windows directories (mount.cifs)

I used this command: mount.cifs //192.168.1.106/ukv_sftp$ /home/admin/public_html/remote -o credentials=/root/.smbcredentials, uid=500, gid=500 but permissions set only for root user, uid=500 and ...
2
votes
1answer
33 views

egrep multiple patterns with dashes

I am trying to match the followings with egrep '201411[08|09|10|11]-[117|111]-' 20141108-111-xyz-abc 20141110-117-342-lala But for some reasons, the 2nd character class pattern ([117|111]) doesn't ...
0
votes
0answers
85 views

Where is module prefork.c settings in Centos 7?

I used to edit the settings in etc/conf/httpd.conf for better memory performance <IfModule prefork.c> StartServers 2 MinSpareServers 3 MaxSpareServers 3 ServerLimit 15 ...
1
vote
0answers
25 views

Centos web camera, fast application for snapshot?

I'm using ffmpeg for taking snapshots / still images with web cameras. I'm going to use several web cameras to take photos at the same time or one after the other (timelapse). It's important for me ...
1
vote
1answer
69 views

How can I manually reset RX / TX counters in ifconfig output without impacting data delivery?

CentOS 5.9 I'd like to reset the RX/TX counters in ifconfig output for an interface. My understanding is that these counters get reset during a reboot but I'd like to avoid rebooting. Is there ...
0
votes
1answer
820 views

Converting update-rc.d redis_6379 defaults to chkconfig command

I'm trying to run the command below on CentOS and of course I get command not found: $ update-rc.d redis_6379 defaults How do I then perform the equivalent using chkconfig?
14
votes
3answers
23k views

How To Install Virtualbox Guest Additions On CentOS via Command Line only

Reading the Virtualbox user manual, I finally got [here], which explains how to install Virtualbox Guest Additions on a Linux guest via Command Line. But it's not clear enough for me (I just started ...
0
votes
2answers
5k views

I'm not able connect internet from vmware player with centos

I installed centos 6.4 and when I installed I set the network config. But somehow centos did not save them. Now I forced server to use dhcp but it is taking wrong IP address and it is not able to ...
2
votes
1answer
217 views

Install Solaris 8 on Qemu-SPARC

I've been struggling with installing Solaris 8 Sparc-32bit on Qemu for a while. So far I've viewed several sites with instructions on how to install Solaris-sparc32bit on Qemu. But only yesterday was ...
3
votes
4answers
123 views

same encryption with /etc/shadow

I'm doing a gui tool for some malware detection script in linux to let server administrators to analyse the result of this script within the web. as I know the encryption used in /etc/shadow is ...
2
votes
3answers
3k views

CentOS 6.5 in virtual box : can't install any package

I have just installed CentOS 6.5 on my virtualbox. I wanted to install the GUI, using this command : yum groupinstall -y 'X Window System' but it gave me the following error message : "couldn't ...
2
votes
2answers
1k views

The name > org.freedesktop.PolicyKit1 was not provided by any .service files

When attempting to launch system-config-users from command line, I get the following warning, and the tool does not open. I'm using CentOS 7 with Mate 1.8.1. WARNING **: Error enumerating ...
0
votes
0answers
28 views

How do you connect app and DB servers from separate containers?

With Docker, how can I make the DB in one container accessible by the app server in another?
2
votes
2answers
3k views

How to have the login screen through VNC in Oracle Linux?

Basically what I am looking for is similar feature like RDP on Windows. I should be able to view the login screen through VNC Viewer. Even if server is restarted I should still be able to access it ...
1
vote
1answer
95 views

SSSD and autofs

I am trying to set up SSSD to get automount maps from Active Directory. I think my settings are correct but it uses the wrong username to query AD. It takes whatever that is set as "mapname" (behind ...
0
votes
0answers
194 views

install kde on centos-7

I have a minimal install of CentOS-7. The kernel has been updated to 3.20.0-123-9.2. I installed "KDE Plasma Workspaces". However KDE will not start. I manually installed xorg-x11-server-Xorg as ...
1
vote
1answer
52 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 ...
2
votes
0answers
28 views

IO throughput lower when only a single process using the disk?

I am running a busy cacti server on centos and sometimes the rrdtool process is painfully slow when writing to disk, in HTOP the IO Column would display something between 100-300. I a polling cycle ...
0
votes
1answer
57 views

export from MYSQL to CSV

How do I export from MYSQL to CSV in mariadb on Centos 7? I am using: Server version 5.5.37-MariaDB Protocol version 10 Connection Localhost via UNIX socket UNIX socket ...
0
votes
2answers
50 views

How to get the ~/.bashrc to work in the native terminal application in Centos? [closed]

The problem I had was to get the .bashrc and .bash_profile and/or .profile scripts to execute by default when using the native Gnome terminal application. I found a number of references which told me ...
1
vote
0answers
39 views

Dual displays, one fixed, one spinning (CentOS 7)

I have 2 monitors and would like to have my setup like this: Monitor = fixed desktop (only 1) Monitor = dynamic, spinning desktop (1+) It was working like this at the beginning but somehow I ...
1
vote
1answer
393 views

Centos Linux no longer has “ System ---> Administration ---> Printing ” after re-install from “Minimal” iso file

Recently i installed centos linux minimal and then installed GUI over it. i noticed it no longer has System ---> Administration ---> Printing given that this is not a 'software' how can i ...
1
vote
0answers
78 views

CentOS - upstart script is created, but its never running at all

I have this following setup but its not working in my CentOS 6x (3.10.23-xxxx-std-ipv6-64 #1 SMP Tue Mar 18 14:48:24 CET 2014 x86_64 x86_64 x86_64 GNU/Linux) Step 1: vi /etc/init/a.conf description ...
1
vote
1answer
112 views

disable persistent network device naming [duplicate]

I have CentOS-6.5 running in qemu-based virtual machine, with a single ethernet interface, which surprisingly is being renamed by udev from eth0 to eth1 for whoever knows reason (!) So I want to to ...
4
votes
1answer
344 views

CentOS 7 boots too fast and network is not ready when executing cron scripts

I have just upgraded from CentOS 6.5 to 7.0 and I am not too happy as the new systemd is probably giving me problems. It seems it is just simply booting too fast, starting up processes asynchronously ...
2
votes
1answer
185 views

Mounting NFS via systemd in Centos 7

I am trying to mount an NFS share on a CentOS 7 box using systemd. This is my /etc/fstab entry: 10.0.0.104:/export /mnt nfs ...
0
votes
0answers
39 views

Possibly Compromised - ./brute xml2014 user x08 300?

I have a long list of a process called "./brute xml2014 user x08 300" when I type in "ps aux". What does this mean? Does this mean my server is being used as a DDoS bot? Here's a screenshot of what ...
1
vote
0answers
25 views

Giving a user SFTP access only with access to subdirectory outside of home?

I have user [USER A] account which contains scripts and a downloads folder. I would like to create a new account [USER B] so that the user has read/write (SFTP and not full SSH) access to their home ...
2
votes
1answer
44 views

Is there an init.d start log?

I am experiencing a problem with an init.d script (the service won't start), so I'm wondering if a log is available so I can fix the problem.