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RHEL6 vm image size increasing its size automatically?

Surprisingly the rhel vm image size is getting increased everyday by 100 mb automatically. We are finding the root cause of auto increase of size. Are there any options to be set..? Can any one ...
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1answer
36 views

Why are some RPM's “not relocatable”?

An RPM is relocatable if you can install it like this: rpm -ivh --prefix=/path/to/non/default/dir package-name.rpm Without getting the following error message: error: package package-name is not ...
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11 views

High TLB Shootdown Counts are Affecting Performance

We are running an app in JBoss EAP on RHEL 6.7 and are experiencing significantly different performance across the cluster. Of the 8 VMs, most will respond to requests in ~200ms but one or two will ...
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2answers
31 views

EPEL Repo GPG Key Working?

I followed the below steps to grab the EPEL GPG key and I'm trying to verify if it's working. This is on a freshly installed RHEL7 system. Repo: https://dl.fedoraproject.org/pub/epel/7/x86_64/ # cd ...
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1answer
16 views

How can I check the power settings in Centos 6.5?

I have a headless server running Centos 6.5. Our consultant has asked that I ensure that the power settings are set up for maximum performance as opposed to balanced or energy saving. How can I ...
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1answer
33 views

Changing the default python on RedHat 6

We have a cluster consists of 5 machine for running Apache spark. One of the machine the default python is 2.7 and the command which python output the following path /usr/local/bin/python The other ...
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0answers
6 views

How to Configure freeIPA to host external DNS Zone

Is it possible to use freeIPA DNS servers to host an external DNS zone that will resolve records for external clients without exposing the internal zones and records? I need to host SPF and DKIM ...
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0answers
17 views

How can i change base url in nginx

I have this config server { server_name example.com; listen 80; # or whatever port location /site1 { proxy_pass http://example.com:1234; } location /site2 { proxy_pass ...
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24 views

TLSv1.2 enabled RDP client for Redhat/CentOS?

We have just hardened our windows servers to use TLSv1.2 for RDP. I was using freerdp and rdesktop from linux as RDP clients but both seem to not work with TLSv1.2. Any ideas regarding what Linux ...
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1answer
58 views

How to use nginx with same host but different url for diff sites

I have different webistes serving on ports 8080, 8090 Now The only port i am allowed is 8085 from outside. Is it possible to do that myserver.com:8085/site1 go to 8080 myserver.com:8085/site2 ...
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34 views

Installing PERC driver during CentOS install

I'm trying to install CentOS on a PowerEdge R720, and I'm running into some issues with installing drivers during setup. I've created a virtual disk consisting of a single SSD, but during install ...
2
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0answers
27 views

DHCP client not getting IPv4 address from a DHCP server

I configured a DHCP server on a VM in VirtualBox. This machine has 2 network adapters, enp0s3 - NAT (from where I have my network connection) and enp0s8 - Internal Network (intnet). DHCP server is ...
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1answer
15 views

Is there a difference between LVM and HA-LVM or is it just how you use it.

I am studying up on HA Clusters using pacemaker and corosync. The Red Hat documentation treats LVM, HA-LVM and CLVM as separate topics. I understand the added features and benefits of CLVM over ...
2
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0answers
23 views

How to interpret the contents of /lost+found after serious filesystem corruption?

I am trying to work out whether some serious filesystem corruption is recoverable or not - however, I am struggling to find a definitive description of what i am seeing in /lost+found anywhere on the ...
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35 views

setfacl access files and directories by other group under RHEL 7

I exhausted all option on the setfacl to allow other group to access (cp, mv, touch ) a file and subdir of my directory. Background: I have a RHEL 7.2 and created 4 different users, as a (default by ...
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1answer
21 views

Forward service records from main DNS to IPA server

I have a production DNS server (dns1.local) in Data Center environment, I build recently IPA server (ipa.example.com) that runs DNS as well in the same environment and it forwards requests to ...
1
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1answer
42 views

Can't send mail from amazon ec2 instance

I am using an Amazon EC2 instance for two projects which have their own domain name. I need using mail services so I created two email accounts on Zoho and I have been able to receive emails from my ...
2
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0answers
14 views

security audit flags redhat/centos package version numbers despite patches

Redhat has this policy of backporting security fixes. But then when RHEL and CentOS sites get audited, the auditors invariably just list the package versions or ask ssh what it's version number is, ...
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17 views

How to enable mcrypt_decrypt for php4 on redhat 4

I need this extension enabled on an old server with an old an not upgraded installation of Red Hat Enterprise Linux ES release 4 (Nahant Update 5) The function that I need it's mcrypt_decrypt. From ...
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0answers
15 views

ipSystemStatsOutDiscards increments, but not the interface specific counters?

Here's an odd one. I noticed that one of my nameservers was complaining about some outbound congestion, and that it seemed to correlate incrementing interface discards on my outbound path. Open and ...
5
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3answers
624 views

update to samba 3.6.23-30 on RedHat server 6.7 breaks connections from clients on AD forest

I have a Samba server (version 3.6.23-30) running on a RedHat Enterprise sever version 6.7. It is joined to Active Directory, and authentifies the users to AD. Winbind is not running ("Winbind is not ...
4
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1answer
29 views

glibc-compiled programs on CentOS 6.7, will they also run on CentOS 5.10?

We have a grid computing environment, comprised primarily of CentOS 5.10 hosts, that people compile applications on and then run them. We're mulling an upgrade to CentOS 6.7 and we're wondering if ...
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1answer
40 views

linux redhat + login prompt keep getting again and again [duplicate]

we installed new server redhat version - 6.7 from kick start, after installation complete successfully we get the login prompt but I am unable to login locally on my redhat linux 6.7 server. The ...
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2answers
72 views

linux + when change passwd we get permission denied

We have installed Redhat Linux 6.5 from scratch the VIA kick start installation and booted into single user mode because I don't have the root password. But when I perform the following: passwd root ...
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3answers
36 views

Getting java.lang.OutOfMemoryError when running an application

I am on a linux Red Hat machine and am trying to run a shell script that initiates a java application. It ran just fine yesterday but today I am getting this error: Error occurred during ...
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2answers
38 views

Build a production IPA server without integrate DNS and NTP with client

We are going to deploy a centralized authentication Linux server (RHEL6) for our RedHat/CentOS servers in Data Center environment. I made some search I believe Free IPA is the best choice since it's ...
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2answers
46 views

how dhcpd handles static IPs vs DHCP reservations

We have a RHEL 6.7 server for DHCP. I am needing some clarification on how dhcpd handles network addressing when someone wants a permanent IP address. Here is a sample config from one of our servers. ...
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1answer
18 views

Blocking a specific external IP:Port connection in RedHat?

I know that in RedHat, in the IP tables I can block incoming connections to a local port. I can also block connections from a specific IP. But is it possible to block a connection from a specific IP ...
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votes
1answer
22 views

linux + how to verify VM defintion disk after redhat installation

We have couple of Linux servers all them are VM red hat Linux ( and they created by the Vsphere client , ) I want to know how we can capture on the Linux OS the following 1.Thick provision lazy ...
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votes
2answers
28 views

Clone a RHEL 5 box into a smaller disk

I'm trying to clone a physical RHEL 5 box into VMware. That box contains a 1 TB disk which is hardly used (80 GB). Thus I want the new virtual machine to have a 100 GB disk instead of wasting a new 1 ...
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17 views

Spacewalk: internal server error creating Kickstart distribution

So a fresh CentOS 7.2 install, fully updated. Installed Spacewalk according to this guide: Here Now Im at the point where I need to create a Kickstart distribution. I fill out the following: ...
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2answers
44 views

Who is the behind Webtatic repository and do you trust it

Webtatic repository has lots of useful packages for CentOS and RedHat. However the repository is very opaque and I have hard time to find information of who is behind it, appart of "Andrew Thompson", ...
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11 views

Locate harddisk in 2 arrays

I have 4 hdd and all of them are indentical. They was created 2 arrays using raid-1. My redhat detect with /sda and /sdb. I can locate hdd by using MegaRaid Manager but i can't distinguish where ...
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0answers
21 views

how to patch dev/test servers with production subscription ?

Our Organization has purchased Redhat platinum support subscription (5 years back),and using it for all Prod/Dev/test systems. The Recent Org change and our management decided not to pay platinum ...
2
votes
1answer
24 views

In a Pacemaker cluster, is there any way to set start-failure-is-fatal on a per resource basis?

I've got it set cluster-wide currently, but I'd really like it to be set to 'true' by default and false for only my Slave DRBD resource. Using Pacemaker 1.1.12 and Corosync 1.4.8.
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1answer
24 views

Apache httpd: How can I Deny from all, Allow from subnet without the ip address range being known before hand?

I am running REHL 6.7 with the stock Apache httpd-2.2. I have enabled mod_status at the Location /server-status. I would like to allow access to this single Location in the following way: Deny from ...
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votes
1answer
27 views

Make copy of OVA before restoration or not

Good afternoon, When having to restore a virtual machine from a backed-up OVA file, should you select the source as the actual file itself or should you create a copy of the backed up file before ...
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0answers
18 views

linux redhat + error from dmesg how to know the root cause

we installed from scratch new red-hat VM Linux machine version 6.7 after installation I noticed about the following message from the dmesg , and on the console can someone have idea what are the ...
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0answers
28 views

Trust a Self-Signed SSL Cert (RHEL) for LDAP over TLS

My Setup Mac OS X Server (El Capitan) as the OpenDirectory Server RHEL 6.5 connected via LDAP for authentication I have set /etc/sysconfig/authconfig on the RHEL server to "FORCELEGACY=yes" just ...
0
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1answer
35 views

Max number of KVM guests in Centos host

On this page, Redhat state that RHEL 5, 6 & 7 are all limited to a maximum of 4 concurrently running KVM guests. Other products that they offer, such as "Red Hat Enterprise Virtualization", do ...
0
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1answer
61 views

Unable to install Rtree 0.8.2 package on RHEL6 64-bit

UPDATE: If it also helps. I have root access. Seems like I am not the only with the problem, but a couple had this problems https://github.com/ioos/conda-recipes/pull/198 I had updated my core.py ...
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0answers
8 views

Create multiple password policies in redhat

How can i create multiple password policies in linux redhat, for example a password policy for the sudeors and another policy for normal users?
0
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1answer
25 views

linux + yum update - what this command covers?

we have red-hat version 6.x machine, I verified what are the missing security patches as the following: yum updateinfo list security available Loaded plugins: product-id, rhnplugin, security, ...
1
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0answers
43 views

RHEL 6.5 in AWS, yum : Cannot retrieve repository metadata because of 404 Not Found

I have a RHEL 6.5 EC2 instance and yum is broken yum clean all $ yum clean all Loaded plugins: amazon-id, rhui-lb, security Cleaning repos: dag epel rhui-REGION-client-config-server-6 ...
0
votes
1answer
42 views

slapd dead but pid file exists openldap

I am facing issue with our new LDAP servers as they go down one by one alternatively. When checked for the services it says: "slapd dead but pid file exists openldap" but show no service ...
0
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1answer
52 views

How to remove this warning “This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.”

I get the following error when i am listing the updates.Server is currently registered with ULN. Although its a warning, i do not want the below message displayed when i am issuing yum command.i found ...
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0answers
15 views

MariaDB replication- slave with high loadavg

We recently set a master-slave replication with MariaDB 10.1.12 on RedHat 6.7 fully patched. Master and slave are powerful Dell R730 with 2 RAID arrays- 1) 2 x 15k SAS drives for OS in RAID1 2) 4 x ...
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0answers
15 views

socket_keepalive configuration for mod_jk

I have Apache httpd with mod_jk. I have issue with killed connections after long idling period: Apache stops to respond and each HTTP request hangs for 15 minutes. I tried turn off mod_jk connection ...
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0answers
44 views

Configuring OpenLDAP over TLS for RHEL/CentOS 6.5

i've been banging my head against the wall with something that seems to be a simple concept. I have two RHEL 6.5 servers. One will be acting as the OpenLDAP server, and one will be a client ...
0
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1answer
31 views

How to install Ubuntu on Red Hat with KVM

I need to install Ubuntu Server on RHEL (Red Hat Enterprise Linux) Server 6.5. I went with the KVM route until I realised that Ubuntu isn't listed as a supported "guest" Operating System ...