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Questions tagged [redhat]

Red Hat is an open source technology solutions provider with offerings including Red Hat Enterprise Linux, open source applications, security and systems management, virtualization, Services Oriented Architecture (SOA) solutions, server and desktop operating systems, Java application software and services, and the JBoss Enterprise Middleware Suite. Please also consider whether or not the more specific RHEL5 or 6 tags might be appropriate as well.

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Disable CoreOS cloudinit

I wanted to try CoreOS for a new vServer. So far I like it but made i fatal mistake: I created it by a cloudinit file instead of the newer ignition method and now on every update reboot it resets my ...
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0answers
5 views

Clonezilla error 'partition size is smaller' during a V2V or P2V action

I'm trying to use Clonezilla to migrate some computers (Red Hat Linux) to Virtual, and I've also tried to perform the same migration doing a simulation between some Virtual machines from Hyper-V to ...
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0answers
16 views

rhel bridge + vlan tag network for KVM

I just did some search of my question before asking this, however I'm too new to the networking of KVM in red hat enterprise linux therefore most of the information helped a little. in my lab, a RHEL ...
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0answers
9 views

what is the difference between caching only dns server with & without forwarder? [closed]

I've pretty much confused about these specific terminology and was finding for a perfect and brief explanation. Thank you!
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2answers
73 views

Unable to ping the remote user via ansible

I'm trying to connect my host machine which is of Ubuntu (ctrlnode is user) to remote machine which is of RHEL (rhelnode1 is user) on AWS and when I try to connect my a user (rhelnode1) on remote ...
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0answers
12 views

P2V with rsync :

I am trying to create a vmware virtual machine from a physical one running RedHat. Here are the steps I followed: I create a VM and boot a live-cd (kali). I perform a rsync of the physical host for ...
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0answers
20 views

How do alter my routes to allow this scenario to complete a connection

I am trying to work out what route commands need to be executed to update my RHEL7.5 unix TCPIP routing table to support the following configuration. I have a Unix server, running RHEL 7.5. Running ...
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1answer
25 views

Routing Port 443 traffic from RedHat 7 host to multiple guest KVMs

I have a RedHat 7 server and a couple of Ubuntu KVMs. The guest vms are connected using NAT because we do not have any public IP addresses to spare at this moment. Is it possible to use iptables to ...
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0answers
11 views

UnicodeDecodeError during installation of OpenShift Container Plattform via Ansible Playbook

I'm trying to setup an openshift cluster using ansible on RHEL7. I configured everything in /etc/ansible/hosts according to the official setup instructions. However, while running the installation ...
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0answers
26 views

OpenShift Master not starting - assetConfig.servingInfo invalid value “”

I've installed OpenShift Enterprise 3.2 on a RHEL 7 system using the official advanced documentation using this template. My installation currently consists of 2 machines: a master and a node. I ran ...
1
vote
1answer
14 views

Should Red Hat images destined for Hyper-V servers include a swap partition?

Working on producing a Red Hat image for hosting on our internal Windows Server instances running Hyper-V. Microsoft recommends letting WALinuxAgent manage swap for Azure deployments - does the same ...
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0answers
62 views

Postfix always_bcc loses original recipient

I have a software that sends email through Postfix (ver 2.10.1) on the same server (RedHat). I want to archive all sent email for specific user. For this I have added this to main.cf: always_bcc = ...
2
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1answer
77 views

How to fix phpMyAdmin with PHP 7.2 on RHEL7?

I've upgraded PHP from 5.4 to PHP 7.2 on a vanilla web server running RHEL7. The source of the PHP7.2 is RHSC using yum. I've also installed the standard supporting libraries for this version, ...
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0answers
27 views

Install Zend Debugger or Xdebug for PHP 7.0 on RedHat 6.10 (64bit)

I'm trying to install Zend Debugger or Xdebug on RedHat 6.10 for PHP 7.0. I have tried the Zend Debugger extension for PHP 7.0 provided by Zend.com at http://www.zend.com/en/products/studio/downloads-...
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1answer
34 views

ls command hangs after I pause the destination folder

I have two instances of RHEL 7 Linux, machine 1 and machine 2. Machine 2 has a folder that is mounted to a remote folder from machine 1. It is done with command: mount -t cifs -o user=aaa,pass=...
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0answers
11 views

Issues for using Metasploit and Nexpose on same server

Environment: Red hat linux 7 Recently I received a message from Rapid7 support that by installing metasploit and nexpose on the same server creates compatibility issues as both of them use NMAP (pcap ...
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0answers
22 views

Auditd how to exclude everything

I am trying to exclude everything but the things I want in Auditd, however the things I've tried, seem to log a lot more details, the majority are irrelevant. -a never,exclude -F msgtype=CWD -a ...
1
vote
1answer
76 views

Kerberos authentication to root domain in Active Directory

I have an environment in Active Directory that is composed of a root and a child domain, let's call them my.root.domain.com and root.domain.com I have a RHEL7 server I've spun up which has no problem ...
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0answers
15 views

How do I confirm spacewalk is receiving latest updates from RedHat Inc.?

I can see RedHat channel and errata, but not sure how I could determine whether spacewalk is receiving latest updates.
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0answers
25 views

Zookeeper best practice - using only SSD disks

we have HDP clusters version 2.6.0 / 2.6.1 ( hortonworks ) , and maybe in the future the version 3.0 I searched a lot in HORTONWORKS documentation , but not found the details about using SSD disks ...
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2answers
28 views

How to switch user given a UID?

I only know the UID of a user, is it possible to switch user using UID in CentOS like we do using username like su -u someuser?
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0answers
52 views

SSH connection getting closed automatically after a sudo command

I have two servers running the same version of RedHat 6.4, however one of them behaves differently when I run remote sudo commands through SSH on it. On server1, the connection is automatically closed ...
2
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1answer
39 views

send file difference from redhat to windows

Is there a way to send file content difference from Redhat to a server listening on a specific IP/Port on Windows? I initially thought tail -f command but then comes the IP part, anyone can help me?
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0answers
39 views

SSL Medium Strength Cipher Suites Supported in hyperkube

I have the SSL Medium Strength Cipher Suites Supported vulnerability on port 10250. Hyperkube is running there: root 13127 1 22 2018 ? 3-00:40:16 /opt/kubernetes/hyperkube kubelet --...
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1answer
550 views

Run FreeRADIUS on FIPS enabled Redhat server?

I'm attempting to install a FreeRADIUS server on a RHEL 6.9 VM. This VM is operating in FIPS mode. I'm running into the problem described in a Red Hat bug report found here. According to that bug ...
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0answers
56 views

how does yum use the baseurl in the repo file?

I'm trying to mirror a rhel yum repo that has arrived on a box by satellite. reposync is failing (gpg check?) and I wanted to test things. The repo config says the baseurl is something like: https://...
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0answers
71 views

Tenable Nessus and SecurityCenter installlation/configuration issues

I've installed Nessus and SecurityCenter on a RedHat 7.5 instance by following the user guide from Tenable. I'm able to get to the Nessus interface which is served on port 8834, create the admin ...
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1answer
63 views

Trying to set up cron job

I want to run cron job every night at 1am and after that every 3 hours from morning 10am-6pm only. 0 1,10-18/3 * * * Is this the correct format?
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1answer
27 views

Offline installation ImageMagick

I am trying to install ImageMagick into a RedHat 7 which is offline. To do so, I've downloaded ImageMagick RPM along with it's dependencies using : repotrack -p . ImageMagick but also tried with ...
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3answers
83 views

How to prove that time is in sync on Linux servers

I want to prove to another team that time is in sync on around 10 Linux servers. I have checked it and it looks good (ntp is setup etc). But they need some kind of validation. Developers are claiming ...
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0answers
11 views

PowerBroker not asking for password, in some cases

I have two RedHat servers. The first was built over a year ago and is running pbis 8.3.0.3287. The second was built over a month ago running pbis 8.6.0.427. If a user uses PuTTY on a windows ...
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2answers
142 views

https --> http lightweight proxy

I'm new to web servers and need some advice. I've wrote simple HTTP server based on served over RedHat 7.2. Sadly, served as far as I understand does not support HTTPS. In order to keep in line ...
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1answer
65 views

mariadb 10.2 is not available in rhel 7 repo

I tried to install mariadb 10.2 using default red hat 7 repository. but as it seems there only available upto mariadb 10.1. when I googled, lot of articles were there and all are saying "in order to ...
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0answers
20 views

Libreswan Testbed in VirtualBox

I'm currently working to create a testbed in VirtualBox for two VMs with an isolated opportunistic IPSec network with LibreSwan. All services are coming up fine, but network traffic between the two ...
0
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1answer
85 views

pip install failed on is not a supported wheel on this platform

we want to use pip in order to install - MarkupSafe-1.1.0-cp27-cp27m-manylinux1_x86_64.whl from uname -a we have uname -a Linux Master 3.10.0-327.el7.x86_64 #1 SMP Thu Oct 29 17:29:29 EDT 2015 ...
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1answer
35 views

Get CPU Core and CPU Count on Linux

In this output to lscpu, is it correct to say that it has 2 cores and 1 cpu? Core(s) per socket: 2 Socket(s): 1
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1answer
152 views

Openshift installation playbook failing

I'm trying to install 2-node cluster with origin version 3.10 (one master, one node). Playbook fails on task openshift_control_plane : Wait for control plane pods to appear Initialization ...
2
votes
1answer
27 views

How to point rhel kickstart iso source to local DVD

Somehow because of driver issue. I am unable get iso source over network. Just wondering if I can point it to a DVD media for the iso installation. Instead of "url --url http://server/path" maybe "...
2
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2answers
92 views

RHEL “el7” vs “el7a” on packages?

I have built an RPM on RHEL7 ppc64le and it got the suffix "el7a" as opposed to "el7" which I expected. Why is that and what does the "a" stand for?
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0answers
77 views

RedHat 7.6\8.0 and LSI SAS 2008 controllers

Starting with versions 7.6 \ 8.0beta, RedHat has disabled support for SAS controllers on the LSI SAS 2008 chip. However, in Fedora 29 with the kernel 4.18, the controllers work. So, RedHat simply ...
0
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1answer
29 views

RHEL 7.5 and Tomcat 8.5 on Azure, not listening on public address

I have created a RHEL 7.5 hosted on Azure and I have installed Tomcat 8.5 in it. I have configured Tomcat server.xml as following: <Connector port="8080" protocol="HTTP/1.1" address="0.0.0.0" ...
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vote
1answer
46 views

2 versions of openssl on one server [closed]

On a server running RedHat 6.7 with Apache 2.4.37 I proceeded to upgrade OpenSSL to 1.1.0i following the same steps as I've done on other servers with the same set up, but on this one, somehow, 2 ...
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1answer
65 views

How to enable a product in a subscription of RHEL 7.5?

How can I install a product displayed by the output of subscription-manager list --consumed? Right now, I have only one product installed on my Red Hat Enterprise Linux 7.5. $ sudo subscription-...
2
votes
1answer
93 views

Why does ACCEPT all for all destinations in iptables not allow port 8445?

I have a test server which has the following IPtables configuration: [root@rhel64 /]# iptables --list Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -...
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0answers
25 views

Cannot execute certain commands on SATA3 3.5" external USB disk

I mount a SATA3 3.5" disk with a USB to Sata3 cable. When I connect the disk, my CentOS7 recognize it: $ dmesg -T | grep USB ... [Mon Nov 5 14:38:36 2018] usb 2-5: new SuperSpeed USB device number 3 ...
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1answer
119 views

CentOS 7 rpc_pipefs mount options not persistent after reboot

I'm trying to mount rpc_pipefs with a nodev option. Initially, I tried doing this by editing the /etc/fstab file and adding an entry for it. Tried: sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs ...
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2answers
45 views

How can I install VNC Server on Red Hat 7.2 that is not connected to the internet?

I have a 64-bit Red Hat 7.2 server that is isolated from the Internet. I am able to SSH to it easily, as well as transfer files using USB. I downloaded VNC-Server-5.0.5-Linux-x64.rpm and tried to ...
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votes
1answer
61 views

OpenLdap inetOrgPerson object class attribute missing : “middlename”

I have an openLDAP installed on my server. Please refer image below for the details. My OpenLDAP version My issue is that i can't find middlename attribute under inetOrgPerson object class, which is ...
1
vote
1answer
58 views

Custom resolv.conf file

Is there any way I can specify a custom resolv.conf file (instead of /etc/resolv.conf) in RedHat Linux, similar to specifying custom hosts file via export HOSTALIASES=~/my_hosts? I don't have root ...
1
vote
1answer
33 views

Is 2250 a valid time interval to the shutdown command on CentOS/RedHat?

I need to shut down all machine in a site - on a Sunday. I created a script (at bottom) that will execute the following on each machine, on the preceding Friday: command="hostname ; sudo shutdown -h ...