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

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1answer
271 views

User gets rejected after system crash on CentOS

The power went out on my PC running CentOS 6.3 while I was logged in as a regular user. Since then, when I try to login from the GUI, my screen flashes to black then returns to the login screen, ...
0
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1answer
39 views

What's the default server root path (CentOS7)

In /etc/httpd/conf/httpd.conf line 36 the ServerRoot is set. Mine is : ServerRoot /etc/httpd But this returns a syntax error when I try to start httpd service. Can anyone give me the default ...
0
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1answer
91 views

CentOS ELRepo Kernel installing VMware

Already installed VMware Workstation 9 on my Linux CentOS 6.5 Final with 3.10.40-1.el6.elrepo.x86_64 running kernel. When I open VMware Workstation, it asks me to locate the Kernel Headers ...
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0answers
41 views

Why does “Connection Failed: 2002” display randomly on my PHP/MySQL website?

I'm running CentOS 6 with Apache/PHP/MySQL. PS. I'm sort of a novice at Linux, but I did my best to gather info before coming here. I'm now a bit stuck. I recently upgraded PHP to version 5.5.12. I ...
2
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2answers
259 views

Missing dependency during rpm install

When I install CodeAnalsyt, i get a failed dependency on libbfd-2.20.51 on Centos 6.3. Binutils is installed on my system and the failed dependency does exists at ...
2
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1answer
3k views

SELinux Write access for vsftpd and samba

This should be easy enough I think, but I'm new to SELinux. I have a CentOS 6 file server. I have some LVM file systems at /var/media and I want to use both Samba and FTP to share them with a Windows ...
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2answers
484 views

Apache Tomcat not working

I am a Linux beginner and have CentOS 6.4 installed on VMware. Recently installed Java SE8 and Apache Tomcat server but I cant't connect to the server by using `localhost:8080' browser says Unable to ...
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0answers
83 views

How to fix “cannot retrieve repository metadata” when installing CentOS 6.5 from Kickstart over FTP?

I am pulling my hair out trying to fix this. I am attempting to install CentOS 6.5 over an FTP server on KVM from the physical host. I have vsftpd installed, selinux set to permissive, and iptables ...
2
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2answers
76 views

Piping tcpdump traffic via SSH - but no root ssh access

The situation I would like to use Wireshark to analyze traffic on one of our servers, but I don't want to install Wireshark on the server itself. I understand that I can pipe tcpdump traffic via SSH ...
2
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1answer
75 views

SSH: public key authentication without authorized_keys file

I have a lot of ssh public key logins on a Linux server, e.g.: Jul 25 11:41:01 host sshd[24594]: Accepted publickey for root from xxx.xxx.xx.xx port 33374 ssh2 This is strange for me since there's ...
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2answers
33 views

Copy over existing files without confirmation?

I need to copy and over-write a large amount of files, I've used the following command: # cp -Rf * ../ But then whenever a file with the same name exists on the destination folder I get this ...
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0answers
60 views

Can I change uuid for network interface in ifcfg-eth* using uuidgen?

I'm creating a script which configuration the network interfaces. The script which generates /etc/udev/rules.d/70-persistent-net.rules and names interfaces to my preference. In CentOS 6.5, my ...
3
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3answers
61 views

Centos rpm -qa vs yum list installed

I want to have server b to have exactly the same setup as server a. My plan is to have a list of all installed things on server a and install it by using the list on server b something like : yum ...
7
votes
3answers
18k 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 ...
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2answers
60 views

Unable to get rid of root user and privileges

I am told that the most basic security to set up in Linux is to change the superuser name from root to something obscure so I run these steps to add new user $ /usr/sbin/adduser new_username $ ...
2
votes
2answers
6k views

How can I install VLC 1.1.10 or 1.1.9 in CentOS 5.6 or CentOS 6.0?

On the VLC download site there is no CentOS 5.6 or 6.0 downloads rpm's. Which RPM can I use to have VLC 1.1.10? In case it's not available, can I simply use the same Fedora downloads? [root@www ~]# ...
5
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2answers
794 views

OpenLDAP Password Policy overlay error while loading

I'm trying to load the password policy overlay but i'm having the following error ldapadd -Wx -D "cn=Manager,cn=config" -f overlay.ldif Enter LDAP Password: adding new entry ...
0
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1answer
115 views

how to install VMware vSphere Client on centos 6.5

How can I install "VMware vSphere Client" on CentOS 6.5?
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3answers
82 views

Possible corrupt passwd file

I did a recovery of the server and reset the root password to a new one because for some reason, the original was not being recognised. It still is refusing to accept the password in ssh for root. ...
0
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1answer
768 views

Commands not found: netstat, nmap on CentOS 7

The commands nmap, netstat and lsof are not found on CentOS7. Why? What should I do to make them work?
2
votes
3answers
2k views

CentOS - install using yum Apache 2.4

I need Apache 2.4 in CentOS because with Apache 2.2 mod_proxy_wstunnel is not possible. I have tried https://fedorahosted.org/SoftwareCollections/ but unfortunately its for RHEL after installing i ...
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0answers
12 views

Why SAMP is not listening to the port

I have forwarded 38474 port to internal port 7778. Then I launched San Andreas Multiplayer on my CentOS server. When I'm typing netstat -npl I see this: Proto: tcp Recv-Q: 0 Send-Q: 0 Local Address: ...
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0answers
59 views

Avahi daemon can't launch due to dbus-daemon problems

I'm trying to run avahi-daemon on CentOS 6.5, but when I run it I get this error: bash-4.1# avahi-daemon Found user 'avahi' (UID 70) and group 'avahi' (GID 70). Successfully dropped root privileges. ...
2
votes
1answer
52 views

rpm macros on CentOS 6.5

Trying to create a spec file for a CentOS 6.5 system. The rpm should check release to add specific Requires: lines based on the OS version....and it doesn't work at all: Spec file snippet: %if ...
5
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1answer
75 views

forward outgoing traffic port using iptables

I am trying to forward all outgoing traffic from port 80 to port 8080 using iptables and I tried the following rule, though it did not work: iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT ...
2
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1answer
69 views

How can I list all the dependencies necessary to install PHP-Soap?

I have a server running Centos 5.10 with no internet access that I control remotely on which I'd like to install PHP-Soap. I also have an identical box in the office which is a clone of the remote ...
2
votes
1answer
90 views

set up centos7, configuration of ip

when I'm searching for ip setting of centos 7. Responed is centos 6.X 's or ealier, and I tried. But how is the default DHCP configuration of centos 7. Some configurations have been done like I want ...
2
votes
1answer
37 views

Virtual Host only works when SELinux is set to permissive - why?

Wondering why my virtual hosts will only work when SELinux is set to "permissive". When SELinux is set to "enforce" my virtual hosts are ignored and default host is shown. Apache/2.2.15 (Unix) Here ...
0
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1answer
71 views

Create ssh root password

For some reason, after a plesk update, I can no longer login to ssh as root using my old password. I have tried to create a user with: /bin/bash & /bin/bash (chrooted) in plesk Which lets me ...
4
votes
1answer
361 views

ifconfig command not found

I've just installed CentOS7 as a virtual machine on my mac (osx10.9.3 + virtualbox) .Running ifconfig returns command not found. Also running sudo /sbin/ifconfig returns commmand not found. I am root. ...
1
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1answer
29 views

How to update tcpdump?

I would like to update tcpdump on my computer (CentOS 6.5) which is currently old. I download the zip file from TCPDUMP/LIBPCAP public repository already but I don't know how to update with this file. ...
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0answers
41 views

Virtual Host setup works for one server, not another

Having an issue with my virtual host set up. Used this tutorial as a reference on both: http://youtu.be/wXIJMtwmPCE Apache/2.2.15 (Unix) on both servers. Seemingly Identical httpd.conf file on both ...
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0answers
183 views

openswan l2tp/IPsec VPN server (NAT'ed)

I have searched for a solution for this problem for a few days now and cannot seem to find anything close to my situation (server is always NAT'd and clients are sometimes NAT'd). I am trying to ...
2
votes
1answer
137 views

Problem setting up iptables (LDAP traffic blocked)

My application server is on a network protected by a organization wide firewall, and my server is also using fail2ban. That said, I'd like to set up an additional layer of protection with iptables. ...
2
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0answers
47 views

iptables hangs at applying rules

I have a set of rules that are supposed to give me the most protection before things like fail2ban and other things are added to the mix. The issue is that although everything checks out in the test, ...
0
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0answers
25 views

VMWare CenOS files disappear after reboot

Solved: I used install to hard disk file from CentOS desktop. after instalation I have two CentOS in VMWare player. The new installation saves everything. I've installed VMWare player and CentOS on ...
0
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0answers
41 views

port being in use not displayed in netstat output

In what scenarios port being used by a process don't show up in netstat -a output. I'm running jenkins on my machine. It's listening on port 8080. I'm trying to start another process that tries to ...
0
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1answer
61 views

Apache Virtual Host Include Not Working

Attempting to get my domain to redirect to the associated vitual hosts, but the Include is not working as expected and displaying the proper htdocs directory. It is still displaying the default apache ...
2
votes
1answer
88 views

Unable to access website hosted on virtual machine

I'm on a mac (osx 10.9.3) running CentOS7 in virtualbox. I would like to access the website hosted on the virtual machine. Browsing to the Guest IP returns webpage not available. I'm able to ping and ...
1
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0answers
43 views

Unable to start apache

I'm running CentOS7 in virtualbox on a mac (osx 10.9.3). Ultimately, I want to acces the website on my Guest VM from my Host. I can Ping and SSH to VM but I can't acces the webpage when entering the ...
2
votes
1answer
539 views

Fedora 14 Xen virtual machine does not detect network

I'm trying to create a para-virt Fedora 14 Xen vm on a host running CentOS 5.5. The VM appears to initially install correctly (the installer finds eth0 and can access the installation media). But when ...
2
votes
2answers
382 views

SMB Mount To Windows Server Appears to Lock up. Any Ideas?

We are running CentOS 6.3 with all the latest updates. (Attempt to resolve this issue) The Server I am trying to connect to is a Windows Server 2008 R2 box. Though this applies to our old SBS'03 Box ...
0
votes
2answers
2k views

How to update CentOS 6.5 to kernel 2.6.32-431?

I need to update my CentOS 6.5 kernel to 2.6.32-431. Running yum clean all && yum update doesn't do it for me. How do I update? And what could be the issue? [root@centos64 ~]# uname -r ...
1
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1answer
36 views

'altinstall' python-devel; can't install psycopg2 on centos

I installed python2.7 on my centos 2.6.32-431.17.1.el6.x86_64 following these directions: http://toomuchdata.com/2014/02/16/how-to-install-python-on-centos/ #after the yum stuff... # Python ...
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0answers
670 views

mysqld dead but pid file exists

Webserver was running fine for weeks then suddenly: I can access, but I am unable to log into Webmin I can access Magento, a php-based storefront application, but I am no longer able to log in and ...
0
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1answer
24 views

Cobbler+Kickstart $basearch problems

I'm using CentOS 6.5 with Cobbler 2.4 (from EPEL). I'm trying to use a heredoc comment to create a repo file (which works) without the $basearch being interpreted. What happens is the file is created ...
4
votes
3answers
196 views

Lots of traffic between servers - where does it come from?

We have ten servers in two groups servers, and there is a lot of traffic between those groups - too much we think. We know this because of stats of our provider, but don't know how this traffic is ...
0
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1answer
91 views

Centos 6.5 from Desktop to basic server

I have already installed centos6.5 on a virtualbox, and I realized that I missed choosing the the basic server mode,can I change it now that the installation is over ?
9
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2answers
623 views

( /etc/sysconfig/iptables ) “Manual customization of this file is not recommended.” Why?

Editing this file directly /etc/sysconfig/iptables can save me so much headaches so much time and so on... and yet on the very top of the file it says.. Manual customization of this file is not ...
4
votes
1answer
106 views

Poorly performing java application vs poorly performing server

This is a very generic question, but it has been coming up more and more often for me. I would like to try and determine an appropriate course of action for this generic case, as I think it could ...