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2
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1answer
1k views

CentOS yum *.rpm package changelog (not installation changelog)

I just logged into my new rented server and updated openssl because of the heartbleed-bug (http://heartbleed.com). I updated using yum list openssl ... Installed Packages openssl.x86_64 ...
0
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2answers
574 views

Can I have virtio-win package on CentOS?

In "Red Hat Enterprise Linux 6. Virtualization Host Configuration and Guest Installation Guide" in chapter 10.1 "Installing the KVM Windows para-virtualized drivers" it says: The virtio-win ...
2
votes
1answer
160 views

Assign different Hostname to different NIC

I have four network card on my server, I have assigned each with an specific IP now I want to set an different hostname for all the interface? What is the difference between setting the hostname in ...
0
votes
1answer
66 views

mouting NFSv4 filesystem returning “Permissions denied”

I am using Red Hat for NFS with Kerberos client: [root@perf-c238 ~]# cat /proc/version Linux version 2.6.18-92.el5 (brewbuilder@ls20-bc2-13.build.redhat.com) (gcc version 4.1.2 20071124 (Red Hat ...
0
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0answers
69 views

when and how to appropriately use /proc/sys/vm/drop_caches

You can clear page cache with /proc/sys/vm/drop_caches. Can someone provide a practical explanation of how this works, when as a sysadmin you would want to do this, how to determine if your system ...
1
vote
1answer
42 views

Under what circumstances could multiple VMs and mounted drives have corruption at the same time?

Today I had to fix 3 VMs with near identical file system errors all running Redhat 5 or 6. Basically the VMs had corrupted inodes and remounted / as a read-only file system, also corrupting several ...
0
votes
2answers
415 views

Using `repomirror` to mirror a yum repository for a different OS version?

I have an EL5 machine. On this host I would like to mirror a Puppet repository for EL6 rpms. How can I mirror an EL6 or Fedora repository on an EL5 host? I am using reposync because I only need the ...
0
votes
1answer
106 views

PHP CLI with IMAP, 5 second startup delay

Having installed "php-imap-5.3.3-27.el6_5.x86_64" on a RedHat Enterprise 6.5 server, the CLI version of PHP always takes 5 seconds to run: php -n -d extension=imap.so -v PHP 5.3.3 (cli) (built: Dec ...
2
votes
2answers
400 views

RHEV Manager best practises

I've been playing around with RHEV. I was wondering what is the best practise for the RHEV Manager in terms of installation. In a big production environment is it best for the Manager to be installed ...
0
votes
1answer
25 views

Understanding sendmail -bt in conjunction with aliases

I'm familiar with exim and the behaviour of exim -bt in indicating how a message will be routed. I'm trying to set up a trivial sendmail configuration to route root mail on a local system to my ...
1
vote
1answer
344 views

RHEL SELinux blocking Apache access to PostgreSQL

I'm running a Django app that uses PostgreSQL. The server is running RHEL 6.5 with SELinux. I'm having an issue where the Django app can't connect to the DB, and I think it's because SELinux is ...
0
votes
1answer
315 views

Apache fails to start with new ssl certificate

I'm running RHEL 6.4 and my trusted certificate has expired recently, so I decided to renew it. I've obtained a new certificate from StartSSL. After downloading and putting the certificate file on the ...
1
vote
0answers
59 views

Unable to access disks in rhel 6.5

I work for a biology lab. We recently bought a new microscope that produces an enormous amount of data - it is simply not feasible to store it on a desktop. So, we bought a storage server - the idea ...
1
vote
1answer
46 views

Net::FTP Perl module hangs

So, I'm running Perl 5.8.8 on a RHEL5.2 system. I recently moved the LDAP source for authentication, and now I'm having issues with Net::FTP. Authentication works with the new LDAP source perfectly. ...
0
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0answers
40 views

floating ip issues redhat

my public floating ip is not accessable through internet.I am buliding an lvs system where 202.141.81.242 is the floating ip and 202.141.81.241 is the real ip of the machine.I can ping 202.141.81.241 ...
1
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2answers
38 views

Will redhat yum see packages installed with rpm? [closed]

Or if not, is there a way to make yum be aware of them? Does 'rpm -qa' and 'yum list installed' query the same source?
0
votes
2answers
48 views

What is the minimum memory requirement for RHEL 4?

I know RHEL 4 is ancient history now, but trying to find minimum memory requirements on the Redhat website is proving to be almost impossible (or I'm searching for the wrong thing). Minimum CPU ...
1
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0answers
40 views

SNMPget and bash gives strange results (gauge32 values incorrect)

Reallly strange to me but here is the problem. If I use an SNMP client such as ManageEngineMibBrowser to query the appliance I get what look like reasonable Numbers: dpStatusMemoryStatusUsage.0 97 ...
0
votes
1answer
83 views

iptables rules for lvs using piranha gui

I am trying to bulid an lvs system, where 202.141.81.239 is the virtual IP and 202.141.81.241 and 202.141.81.242 are the lvs routers.Ths system is working fine in our intranet but is not through ...
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0answers
34 views

Directory Listing Denied Message

Understand that this is the common error for a missing index.* in the location being pointed to by Apache, however I know it to be the case that there is an index.php in the location specified as the ...
1
vote
1answer
2k views

Starting Tomcat 7 as a user - init.d script can't write pid

I want to run Tomcat 7 as a user on CentOS 6. I've created a user tomcat:tomcat and changed the ownership under /var/lib/apache-tomcat* etc... There are lots of docs online on how to do that but I ...
1
vote
1answer
454 views

yum install throwing error 403 when trying to install from rhel-x86_64-server-6

To preface this, I don't have much Red Hat experience. Most of my experience is with Ubuntu. The server I'm working on right now is running Red Hat Enterprise 6.5. I'm trying to do a simple yum ...
2
votes
2answers
493 views

Installing perl-Time-HiRes on RHEL6.2 gives perl dependency error

I get the following when trying to install perl-Time-HiRes: host1:user1 > sudo yum install perl-Time-HiRes Loaded plugins: product-id, security, subscription-manager This system is not registered ...
0
votes
1answer
304 views

CentOS Virt-v2v conversion tool

I am trying to use the virt-v2v tool in CentOS for the conversion of virtual to virtual and eventually physical to virtual machines. I am rather confused after spending a day trying to get the ...
1
vote
2answers
3k views

No Tomcat7 package for RHEL 6

We're currently setting up a new application hosting environment on Rackspace and are struggling to find a package for Tomcat 7. Our previous provider was Amazon and we ran on Amazon Linux who via ...
0
votes
1answer
114 views

Format and partition device-mapper in LVM

I have a disk on a server: /dev/VolGroup00/LogVol02 that is about 5TB. I would like to format and partition it to make 2 500GB mount points. It doesn't even have to be in LVM. How can I take this ...
0
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0answers
24 views

iscsiadm - how to disconnect from one of several connections to same target

I have a RHEL 5.x server with multiple connections to the same SAN (different targets). I'm consolidating some of the storage and want to disconnect one of the connections. I have unmounted the ...
0
votes
1answer
60 views

How can I retrieve screen unlock times in gnome?

The last command only retrieves the login times. I'm interested in the times that the screen was unlocked. Any indirect means of getting this are also welcome.
4
votes
2answers
1k views

VMXNET3 performance on Linux on ESX 5.0

What kind of performance can I expect from VMXNET3 adapter when running two Linux guests on the same VMware ESX private network defined between those guests? I use VMXNET3 adapter for communicating ...
0
votes
0answers
369 views

pam_tally2 being called before Password entry

Based on the suggestion given in: Account Lockout with pam_tally2 in RHEL6 I have come to a working configuration, wherein account is getting locked out after 3 failed logins. Catch is that ...
3
votes
1answer
102 views

Network card location

I am generally familiar with hpacucli and hpasmcli but how do I determine in which slot a network card is installed? I need to be able to map to and from the slot and the MAC (and from there to the ...
1
vote
1answer
52 views

Tomcat upgrade replacing ROOT.war

When upgrading tomcat by running: yum update on Amazon Linux the ROOT.war file is replaced by the default ROOT.war from the tomcat distribution. Is there a way to prevent this?
0
votes
0answers
157 views

Multiple networks in Openstack Grizzly (Neutron)

I am deploying a PoC/demo on CentOS 6.5. I want to have multiple external networks. The end result should be something like: The 3 networks are come in through a Cisco switch. For various reasons I ...
0
votes
4answers
93 views

mysql - how to zero out the access log file? [closed]

I have a MySQL 5.5 service (RHEL 5.x) with a ~350Gb access log file. I'd like to zero this file out. Do I need to do anything special before-hand? Stop the server?
0
votes
1answer
177 views

Prevent reboot after yum update

I would like to know how to stop the system from rebooting after running a yum update. I use a script on each system which runs daily yum updates through cron and if an uodate is critical enough (for ...
1
vote
1answer
411 views

How to register RH 6.5 in order to use yum (behind http proxy)

I registered my RH 6.5 machines using subscription-manager. Yum is not working. I'm behind http proxy so I added proxy=http://x.x.x.x:3128 into /etc/yum.conf. But still yum installations fail: yum ...
1
vote
2answers
1k views

Openstack/PackStack basic multi-node network setup

Background After having installed OpenStack with PackStack we are left with a problem with the networking. We wanted a super-simple network with one subnet where all the virtual machines should ...
1
vote
0answers
1k views

Samba Configuration issue

I have been looking around to no avail. RHEL 6.4 I can run the following from a remote server, and successfully authenticates against LDAP: smbclient -L //tric4t/share -U username Once I run ...
2
votes
0answers
76 views

Lots and lots of kernel log entries: iint_free: readcount: -1, iint_free: writecount: 1

I am getting tons of log entries of the form Mar 2 00:44:10 SRV123 kernel: iint_free: readcount: -1 Mar 2 00:44:10 SRV123 kernel: iint_free: writecount: 1 Mar 2 00:44:10 SRV123 kernel: iint_free: ...
-1
votes
2answers
134 views

Redhat High Availability Add-On on Centos 5.8 [duplicate]

could we use Redhat High availability Add-On on CentOS 5.8 server? in other words should we purchase a license for Redhat high availability clustering for CentOS 5.8 or its included in CentOS without ...
1
vote
3answers
151 views

How to find whats using network traffic

What tool can I use to figure out what process is using the network over a certain time frame and how much data was transferred? I can tell the data is transferred over a 5 minute period. Could be a ...
0
votes
2answers
57 views

RedHat/CentOS environment discovery

I am working with a new client who lost their IT person and are trying to document what they have. It's a Linux/SunOS environment. I am trying to find their Samba or equivalent user management server ...
0
votes
0answers
694 views

Connecting to MSSQL server using sqlcmd and odbc driver on RHEL 6 fails

I spent the last hour trying to connect to a mssql server using sqlcmd through odbc driver. I was talking to the db guy but he doesn't seem to have a clue what is going on.. Maybe you can help me out ...
1
vote
1answer
171 views

How to make ntpd timeout when an Internet connection is not available

I am using the following command to synchronise the time on a Oracle Linux 6.5: ntpd -gq Unfortunately it does not timeout when an Internet connection is not available. Is this possible or should ...
0
votes
2answers
202 views

rbash to limit user to its home directory closes sftp connection

Server: Red Hat Enterprise Linux Server release 6.5 (Santiago) Using openssh-server to allow sftp connexions. I'm trying to limit users to their own personal home directory. So i modified ...
2
votes
0answers
37 views

Does the LVM DM UUID contain any metadata?

For example within the name listed below is there any metadata within the name, eg based on server serial number or date created or such: ...
1
vote
1answer
1k views

Mysql high memory usage and using swap

I have a 1.6GB database that adds about 200MB of size every month. I have a 12GB RAM(shared with apache, mysql and os), mysql always uses swap that i need to restart the service once it reached the ...
5
votes
3answers
263 views

Flash on EL6 for accessing VMware vCenter Appliance 5.5

Has anyone succeeded in connecting to a vcenter 5.5 appliance with a RHEL6 workstation? If so, what's the magic incantation and ritual keystrokes? Made the mistake of upgrading to esxi 5.5 without ...
-1
votes
1answer
100 views

Can't connect to identically configured remote MySQL server

Where I work, we have a single development server, and a single production server that we manage on-site. When I try to connect remotely to the MySQL on the development server, I get this error: ...
0
votes
1answer
156 views

Identifying RHEL disk other than by UUID in /etc/fstab for Disaster Recovery from another site

For our disaster recovery setup there is a set of disk which are replicated from our production site to the disaster site. On the production site the RHEL servers have /boot filesystem setup on disks ...