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6
votes
2answers
11k views

RHN Satellite / Spacewalk custom channels, best practice?

I'm currently setting up RHN Satellite, and all works well. I'm in the process of creating custom channels, since we have certain software which should be available for all nodes of satellite, e.g. ...
0
votes
1answer
27 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 ...
6
votes
4answers
19k views

How to change Linux services startup/boot order?

As the question is clear from the title, how do I change Linux services startup/boot order?
1
vote
1answer
38 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 ...
0
votes
1answer
67 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 ...
1
vote
0answers
15 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 ...
0
votes
0answers
28 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 ...
0
votes
0answers
65 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 ...
0
votes
0answers
48 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 ...
2
votes
0answers
54 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 ...
1
vote
1answer
55 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 HA-...
0
votes
1answer
36 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 dns1....
2
votes
0answers
26 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 ...
0
votes
3answers
2k views

How do I enable updated PHP 5.5 versions in RHEL 7

As our development projects expand we're finding we often need newer versions of PHP, Python, Ruby, etc than are provided by Red Hat. What are others at NU doing to solve this problem? There doesn't ...
0
votes
2answers
364 views

Spacewalk (satellite) activation refresh child channels on client

We have a (spacewalk) rhn satellite server running and several hundred machines registered with it with a few activation keys. Each of these keys have one or more child channels. We need to know how ...
1
vote
1answer
87 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
votes
0answers
16 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, ...
0
votes
3answers
44 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 ...
1
vote
0answers
22 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 ...
4
votes
1answer
37 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 ...
1
vote
1answer
474 views

Transfer files with extended attributes: Redhat to Redhat

I need to transfer files with extended attributes from my local system (SL 6.5) to a remote server (Centos 5.6). However, both scp and rsync are dropping the attributes, so I'm having to manually ...
0
votes
2answers
517 views

Linux CentOs 2.6.18 Setting locale for cronjobs

I have the problem, that I am trying to automate some Informix database job via the crontab. The job runs fine when done via the command line or processed via the at queue, but not via the crontab. ...
-2
votes
1answer
51 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 ...
-1
votes
2answers
128 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 ...
1
vote
3answers
2k views

Zabbix server SELinux policy

I have a Zabbix server running on a RHEL 7 box and when I use the web front end (on the same box) it says Zabbix server is not running. If I disable SELinux and change nothing else, the web front end ...
0
votes
1answer
238 views

Mongodb + Kerberos BadValue SASL mechanism GSSAPI is not supported

I am trying to run an instance of mongodb with the authentication mechanism GSS-API. This is the command: mongod --dbpath /home/ec2-user/db/node2/data --auth --setParameter authenticationMechanisms=...
1
vote
1answer
58 views

Lighttpd ldap auth issue, massive performance loss (lighttpd 1.4.35-1.el6.x86_64 + RHEL 6.6)

I installed lighttpd for the first time from epel repo. I changed user and group for the webserver and ran the lighttpd server. I can download a page with 200 small images in about a second. If I ...
0
votes
2answers
71 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 ...
9
votes
4answers
7k views

Logrotate Successful, original file goes back to original size

Has anyone had any issues with logrotate before that causes a log file to get rotated and then go back to the same size it originally was? Here's my findings: Logrotate Script: /var/log/mylogfile....
2
votes
3answers
8k views

Block outgoing connections on RHEL7/CentOS7 with firewalld?

RHEL7/CentOS7 features a new firewalld firewall service, that replaces the iptables service (both of which use iptables tool to interact with kernel's Netfilter underneath). firewalld can be easily ...
5
votes
3answers
3k views

Windows 7 Samba issue

We have a strange samba issue affecting only one user. Our samba setup is as follow : Red Hat Enterprise Linux Server release 5.4 (Tikanga) - Samba Server Samba version 3.0.33-3.14.el5 ...
2
votes
1answer
43 views

Custom naming a dummy nic on RHEL7.1?

Is there a way to create a dummy network device named, say, "asdf" on RHEL7.1? In other words, I want to custom name NICs and not have them backed by any physical device. Also which one is more ...
0
votes
2answers
4k views

Cannot ping linux (RedHat) machine by hostname

For some reason, a linux (RedHat) machine that I have is not ping-able by hostname! It is ping-able by IP address though. I have the same network configurations as another linux (RedHat) machine ...
1
vote
2answers
74 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. ...
-1
votes
1answer
20 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 ...
94
votes
6answers
197k views

What version of RHEL am I using?

From the shell and without root privileges, how can I determine what Red Hat Enterprise Linux version I'm running? Ideally, I'd like to get both the major and minor release version, for example RHEL ...
-1
votes
1answer
25 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 ...
-1
votes
2answers
35 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 ...
1
vote
6answers
2k views

How to set up “vi” shell environment as default

I'd like to use vi (set -o vi can do the trick) as default in my shell instead of emacs, but I do not want to put it into bash startup scripts. Why? Because I work as verification engineer and I am ...
2
votes
3answers
520 views

Keep installed RPMs in sync

What is the best way to keep several CentoS/RH 5 servers keep the same set of RPM's? I.e., when I install or update an RPM on one of them using a common YUM repository, make the other servers update/...
0
votes
2answers
68 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", ...
0
votes
0answers
27 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: ...
8
votes
4answers
14k views

second ip address on the same interface but on a different subnet

Is it possible in CentOS 5.7 64bit to have a second IP address on one interface (eg. eth0) - alias interface configuration - in a different subnet? Here is the original config for eth0 more etc/...
4
votes
3answers
4k views

AUFS missing in Redhat Fedora, is there an alternative way of stacking directories?

I can't find Aufs in Redhat's Fedora, or any other stackable filesystem for that matter. It seems this is due to relabelling limitations of SELinux. Is there a way to achieve similar without ...
1
vote
1answer
66 views

Haveged on Cloud Linux

I am trying to figure out how to install haveged on Cloud Linux. It doesn't seem to be avail in the repo, and trying to a do a make install does not work. My question is: Is haveged compatible with ...
0
votes
0answers
12 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 /...
1
vote
0answers
24 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 ...
0
votes
1answer
86 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 ...
20
votes
6answers
46k views

KVM Guest installed from console. But how to get to the guest's console?

I'm trying to install a fully virtualized guest (Fedora 14 x86_64) on KVM (RHEL 6), using command-line only (both hypervisor and guest). It goes without errors, and without a tangible result . I'd ...
2
votes
1answer
36 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.