CentOS is a Linux distribution standing for "Community ENTerprise Operating System" and is a rebuild of "Red Hat Enterprise Linux" (RHEL). The "CentOS6" tag refers to versions 6.x of CentOS.
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CentOS 6.3 task blocked for more than 120 seconds
Recently have been getting Zabbix alerts about our mail system being unavailable, the uptime on the machine is 30+ days. I've been tracing the Zabbix logs and it looks like the communication between ...
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votes
1answer
289 views
Centos 6 guest can only see 127GB on Hyper-v
I created a fixed VHD size 800GB. However, when I try to install CentOS 6 x64 bits OS, it only use 127GB LVM volume. How to install CentOS 6 without using LVM? I want to use all the 800GB disk. ...
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0answers
30 views
Free memory on linux [duplicate]
Possible Duplicate:
Meaning of the buffers/cache line in the output of free
What would be a good setting to free memory on linux? I have 8GB but gets used up so fast.
current settings:
...
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3answers
586 views
Installing MySQl 5.5 on CentOS 6 dependencies conflict
I installed mysql on my centos 6 yesterday but I wasb't aware that it's installing mysql 5.1 which is an outdated version. Now I've remove old version and all it's dependencies, but when I try to ...
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1answer
268 views
How do I open custom ports in my iptables firewall?
I need IPTables, like everyone else, but I don't use it enough to really keep my knowledge complete and fresh.
The setup utility in CentOS is too basic. It doesn't seem to allow me to open up custom ...
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1answer
202 views
Edit a file on CentOS 6.3 Minimal [closed]
I installed CentOS 6.3 Minimal on VMWare Player, and I realized how 'minimal' the setup is...
Don't have network connectivity. From what I searched on google, I need to edit the file
...
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votes
1answer
71 views
Accessing apache Webserver Over local Network
I have installed Apache Web Server on an CentOS 6 machine and configured it to run listen on an IP X.X.X.X:8080 in httpd.conf file but it is not working when i tried to access the Web server from ...
3
votes
1answer
391 views
Starfield Wildcard SSL Certificate Not Trusted in All Browsers
I am at a loss as to what else I might try in order to debug this issue with a Starfield Wildcard SSL Certificate.
The problem is that in certain browsers (Safari or the most-updated chrome you can ...
2
votes
1answer
255 views
Kickstart CentOS 6 prompting for TCP/IP with network set to DHCP
I am trying to stop my kickstart CentOS install prompting me for TCP/IP information. After I click through this prompt (keeping IPv4 and IPv6 to their defaults) the installation continues and ...
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1answer
173 views
Windows NX client can't connect to FreeNX server
After my Centos 6 server was powered down without a clean shutdown, I can't connect to the FreeNX service. I get errors like:
xrdb: No such file or directory
xrdb: Can't open display ':1001'
How ...
1
vote
2answers
232 views
How to make 2 linux machines accept each other ssh connections without asking for a password
I need to create a cron script that will scp all the logs from one machine to a log parsing machine but when I scp I am requested to insert a password. Usually, when I connect to the servers using ...
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votes
1answer
273 views
disk partition centos
I am setting up server for hosting two WordPress which has size of around 70GB. I have already installed CentOS as OS and I would like to partition the Disk. Is there any tool which can help me or can ...
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0answers
234 views
chkconfig creating service symlinks with the wrong order
On RHEL 6.3, I have a system service that should be starting after postgresql and httpd (order 64 and 85, respectively), but chkconfig always places it at order 50. I tried an experiment on a CentOS ...
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2answers
457 views
How to uninstall git installed from the source? [closed]
I installed the git using this article. Now I want to uninstall the git. How to do it?
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1answer
785 views
How do you configure /etc/pam.d/system-auth-ac on CentOS 6 using authconfig?
I'm trying to replace the cracklib module with passwdqc. Every time I do an authconfig --update (or --updateall), the changes I make on the system-auth-ac file goes away. The authconfig command line ...
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0answers
163 views
ESXi 4.1 CentOS 6.X eth0 unnavailable
I don't usually ask for help so directly, usually google have all i need but this time i'm seriously lost.
Hope you can help me .s
The thing is, i have a server with Vmware ESXi 4.1 and 5 already ...
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0answers
131 views
Launching a jar file using shortcut in CentOS [closed]
I am trying to launch a jar file using a shortcut from desktop but it never works. Can you give me some idea how to do it?
Here is what i am doing:
I create a Launcher and in it's properties set:
...
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1answer
638 views
Configuring openLDAP in CentOS 6.3
I have followed the instructions found in this question until the part that I have to do an ldapadd using "cn=Manager,dc=syco,dc=net" as DN. However, I am getting the error Invalid Credentials (49) ...
2
votes
1answer
235 views
BIND DNS strange behaviour resolving dns
CentOS 6.3
BIND version 9.8.2
Server is acting as my local network's DNS server.
What happens is that I can resolve jquery.com fine, but accessing code.jquery.com results in nothing found when ...
3
votes
2answers
274 views
Linux servers going into Halt when pressing Control-D in putty or exit in the shell
Since today at noon, there's a number of Linux CentOS servers which are going to Halt whenever i type exit or use Control-D to close the putty window.
Did anyone encounter this weird behavior before?
...
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votes
1answer
186 views
automount a windows share
I have this line and it works
mount -t cifs -o myuser //192.168.0.12/Public/Docs /mnt/cifs_shares/Docs
But then I try with autofs and it doesn't
In /etc/auto.master:
/mnt/cifs_shares/Docs ...
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1answer
657 views
CentOS release 6.3 (Final) php-mcrypt Install Fails [closed]
I got a clean installation of CentOS 6.3, with php 5.3.18.
I tried installing the epel-release-6-7.noarch.rpm and epel-release-6-7.noarch.rpm in order to run
# yum install php-mcrypt
However it ...
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votes
2answers
161 views
Trying to install SawMill and getting the following error:
[root@sawmill sawmill]# ./sawmill
./sawmill: error while loading shared libraries: libldap-2.3.so.0: cannot open shared object file: No such file or directory
Using yum provides libldap_r-2.3.so.0 i ...
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1answer
736 views
Which mirror should I use to download Kernel Xen 6.3? [closed]
I'm following this construction to install (version 4.1.2) on a CentOS 6.2 (x86_64) system.
When I use this command
yum install http://au1.mirror.crc.id.au/repo/kernel-xen-release-6-3.noarch.rpm
I ...
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2answers
337 views
KVM/Qemu Guest Shutdown problems
on both host and guest running CentOS 6.3 with KVM/Qemu virtualization, I have the following scenarios:
"virsh shutdown kvm1" did not shutdown at all. virsh lists guest as running.
"service ...
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1answer
300 views
KVM with external IP without NAT?
I have a CentOS 6.3 server with 1 NIC (eth0) and an external IP (lets say 1.2.3.4). On this server I'm running a CentOS 5.6 KVM with the "default settings" (virbr0 on 192.168.122.x).
What I want to ...
2
votes
2answers
1k views
tomcat6 on CentOS 6: cannot stop/restart service
I have this problem with stopping and starting tomcat6 (package from the repos).
I've seen with several CentOS 6 and RHEL 6 boxes.
The symptoms are that when I want to restart or stop tomcat6 it just ...
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votes
4answers
4k views
Centos 6.3 Bind hangs on “Generating /etc/rndc.key”
I'm installing bind on a clean Centos 6.3 system.
In previous versions that would work like a charm, but now I get
Generating /etc/rndc.key
when trying to start bind after the installation.
...
1
vote
1answer
253 views
Error installing OAuth on CentOS 6.0
I'm not sure what to do here cause I'm getting the same type of error overall as i try to install oAuth on this cloud slice. I'm not sure what to do but I would think that I need to update or ...
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votes
2answers
1k views
How do I get my Proxmox VM to access the internet without a public IP address
I would like to create a proxmox vm and have that vm be able to ping/access external websites without having to assign a public ip to it. How do I do this?
The VM is running centos 6
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vote
1answer
361 views
Zabbix not getting data for one filesystem
I have Zabbix monitoring disk space for several volumes on several servers. It works fine on all of them except for one of the volumes on one of the servers which always reports as 0. However, when I ...
3
votes
1answer
138 views
Sync virtual machine hostname to displayName in VMware ESXi 5.1
How can I read the paramater called displayName in the .vmx file or "Virtual Machine Name" in vSphere Client from within the VM. If this is possible with vmtoolsd I haven't found it yet.
...
1
vote
1answer
64 views
I need to mount directory from one hdd to public_html folder [duplicate]
Possible Duplicate:
Hard drive on server which hosts public_html folder is full. What to do?
i have a hard drive (1TB) which has a folder named "flvideo2" i need to mount into ...
1
vote
1answer
816 views
httpd, vsftpd and the annoying selinux
I have a CentOS 6.3 installed with httpd running and vsftpd but I am unable to balance permission between the user able to upload over ftp and their website working.
What I do:
I create a user with ...
2
votes
2answers
322 views
CIFS Mounting Permissions
I have an issue that I;m going round in circles with, I hope you can help.
The Set up:
Server 1 (CIFS Client) - CentOS 6.3 AD integrated uing Samba/Winbind & idmap_ad
Server 2 (CIFS Server) - ...
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votes
1answer
335 views
DHCP over WiFi on CentOS 6 [closed]
Using CentOS 6 I cannot get my WiFi interface to configure over DHCP. Here is my ifcfg-wlan0:
This does not work (although it is correct):
DEVICE=wlan0
BOOTPROTO=dhcp
ONBOOT=yes
...
0
votes
1answer
217 views
Windows 7 NFS client slow
I have a CentOS 6 VM running on a Windows 7 host. I have NFS server running on the VM, and mounting it via windows' built-in NFS client on the windows host. However, it is incredibly slow. Namely, ...
2
votes
2answers
339 views
anacron screws my crontab?
My system is CentOS 6.3 , I notice my /etc/cron.daily are not executed at 4:01 AM , instead , these scripts are executed at random time . I searched and seemed it is 'anacron' that screws up my ...
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votes
1answer
52 views
Running adb from PHP
I moved from Ubuntu to CentOS and I now have a problem running adb from PHP.
I am trying to execute shell_exec("/path/to/adb devices");
and I get:
ADB server didn't ACK
failed to start daemon
error ...
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2answers
281 views
SSHFS on startup CentOS 6.3
I edited the file /etc/rc.d/rc.local and added the following lines in order to mount a remote directory through sshfs at boot time:
su user -c "/usr/bin/sshfs -o idmap=user -o reconnect -o ...
2
votes
5answers
481 views
How do I automate OS installation on 500+ machines?
My company has to image a large amount of machines by the end of the year. Each of the machines will have hardware RAID 1 and running CentOS 6.
What options do I have for automating the OS ...
1
vote
1answer
218 views
Doubled up RAM to 32 GB - now how to speed up a “LAPP” server?
I run a small Facebook game at a CentOS 6.3 quad core machine with PostgreSQL 8.4.3 + few PHP scripts (doing mostly select queries) + 1 Perl daemon and even though the server worked ok, I've suggested ...
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2answers
501 views
Create a super user in MySQL 5.5 not working: Permission denied for root@localhost
Using CentOS 6, logged in to MySQL as root, entering the command:
create user 'user123' identified by 'pass123';
works fine. But when I try and give that user super user privileges with:
grant ...
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2answers
833 views
Where located /etc/ldap.conf in CentOS 6.3?
Where I can find /etc/ldap.conf file to configure system authentication through LDAP in CentOS 6.3?
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votes
1answer
164 views
Email sent from Centos end up in user spam folder [closed]
I am facing this issue, I use the default postfix MTA in centos but the mail end up in user spam folder, but this does not seem to be a problem in Debian using exim4, both host have hostname and ...
1
vote
3answers
912 views
CentOS iscsi initiator has session but there is no block device
I have installed the scsi-target-utils package on CentOS and I used it to perform a discovery. The discovery did give me an active session. I restarted the iscsi service but I do not see any new ...
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1answer
523 views
CentOS 6 gnome-terminal font is garbled until Arabic Support is installed
My default VM images for CentOS 6 are always installed with the most minimal set of packages. When I need a machine with a graphical install, I upgrade with yum groupinstall Desktop. I've noticed ...
1
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0answers
31 views
Where to look for regular scripts?
It seems to me that our server freezes every 30 days around noon due to the huge utilization of xvda data transfer partition - writes are 50 times higher than normally (according to the health monitor ...
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1answer
329 views
Is this an OK way to install Apache with SSL on CentOS 6?
I'm setting up a CentOS 6 server on a VPS. I've worked with Apache before, but I've never dealt with CentOS 6.
I guess it would just be this right?
sudo yum install httpd -y
sudo yum install mod_ssl ...
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1answer
355 views
VM does not show up in virt-manager, how to troubleshoot?
I spun up a VM using virsh create, and I am able to see the VM in virsh list, however, when I run virt-manager, I am unable to see the VM in the GUI
I am trying to use virt-manager to access the VM ...
