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Questions tagged [redhat-enterprise-linux]

Use for questions about Red Hat Enterprise Linux (RHEL), a Linux distribution from Red Hat intended for enterprise use. Note there are version-specific RHEL tags for questions unique to a specific version. Use a product-specific tag for questions about other distros in the Red Hat family, like Fedora or CentOS.

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410 views

How to create a sudo user if there is no wheel group available in rhel?

I mean, if there's a user with username:name how to make him a sudo user without adding him to wheel group(intention is if wheel group is deleted)?
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0answers
507 views

showmount -e nfs_server_hostname does not show all the available mounts for a client, but why?

NFS_Server is a DataDomain Client is RHEL 7.3 I run a below command to show available NFS shared for my client system from NFS_server, however, I do not see all the share available to mount. # ...
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0answers
763 views

rpm install failed No such file or directory

Attempt install JDK8 on RHEL7 but fail, any idea how to solve this? [root@rhel7 tmp]# rpm -ivh jdk-8u144-linux-x64.rpm Preparing... ################################# [100%] ...
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1answer
1k views

Linux, sudo env does not have environment variable while root user has

I have RHEL 7 and I want to set environment variable for sudo. I have run sudo su in order toswitch to root user and added export to its .bashrc file. Then I have reloaded them with source. Now when ...
0
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0answers
339 views

FTP transfer fails with error 426

I have a vsftpd server running on a RedHat host, and an application that uses FTP to transfer files to and from the server. Some transfers are done without problem, but for some files it fails with ...
0
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1answer
119 views

Using the virsh# command to delete an existing VM

I have a been working on a Centos7 Box with a couple of VMs installed, I know how to use the virsh# command to list, start or powerOff all existing VMs, However, I will like to know how to actually ...
1
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1answer
62 views

how to run script on remote machine with delay

I want to run script on remote machine but with delay for example scp -rp script root@$IP:/tmp ssh root@$IP:/tmp/script ( but script will run after 5 sec ) the target is to run the script ...
0
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1answer
195 views

How to check used space for pvdisplay?

In AIX using lspv hdisk0, i am able to get total pps, free pps, used pps TOTAL PPs: 1119 (71616 megabytes) VG DESCRIPTORS: 2 FREE PPs: 272 (17408 megabytes) HOT SPARE: ...
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0answers
989 views

java + version 1.7.16 by your slf4j binding is not compatible with [1.6]

I am running the following application on my Linux machine and we get the: version 1.7.16 by your slf4j binding is not compatible with [1.6] important remark - we not have the file - pom.xml in my ...
0
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1answer
28 views

is there a way to query a local rpm for information, like in yum info?

I'd like to issue a command to query information about a local rpm package. Something like this: yum localinfo mylocalrpmpackage.rpm yum info just queries information about remote packages. Is ...
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1answer
187 views

How to check used space for each partitions in Linux?

I want to check used space for each and every partition in Linux. I am using this command to get size of each partition but not able to get used space or free space. $ cat /proc/partitions major ...
0
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1answer
851 views

redhat iso installation 64 bit on vmware player

enter image description hereenter image description here I was trying to install red hat 64 bit iso ( rhel-server-7.4-x86_64-boot.iso ) on vmware player. But, I got stuck at the installation part ...
1
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1answer
1k views

Install specific version of gcc on Centos 6.8

How can I install gcc-4.8.4 version on Centos 6.8? I've already checked several sources like How to Install gcc 4.7.x/4.8.x on CentOS, but the suggested solutions work by installing some specific ...
3
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1answer
527 views

Wget wait functionality not working as expected

Background: I am using wget (version 1.14-15.el7) on RedHat Linux (version 7.3 (Maipo)), in a Bash (version 4.2.46(1)) terminal. Unfortunately, I am limited to this particular RHEL image, so I can't ...
2
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1answer
5k views

Unable to access samba shared folder on Windows 7

I have a server running RHEL. In the network are three workstations: two linux (RHEL) and one Windows 7. I am using samba to share a storage device (connected to the server) with the workstations. For ...
0
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1answer
90 views

how to know if some data already exist on device - disk

how to know if some data already exist on device - disk The simple way to check if disk include filesystem is to do: mount /grid/sdb /mnt and if sdb or other /dev/sdx have file-system then mount ...
0
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1answer
721 views

systemd service failed to start with errror : “main process exited, code=exited, status=3/NOTIMPLEMENTED”

I am getting below error when i start a systemd service [localhost.localdomain]-> systemctl status rcc_rccproxy.service * rcc_rccproxy.service - starts RCC Proxy process Loaded: loaded (/etc/...
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2answers
8k views

Systemd error : Executable path is not absolute

I have the following below code of systemd. [Unit] Description=start RCC logger server process Requires=rcc-drbd.service rcc_check_locked_scr.service s96rcc.service After=rcc-drbd.service ...
2
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1answer
179 views

How to install NPM / elasticsearch-head without Internet connection?

I am trying to install NPM on my machine without any Internet connection. Through some research on the Web I have come across suggestions to use npmbox. So I gave npmbox a try but when I try to bin/...
1
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1answer
333 views

useradd works interactively, but not in bash script

I'm trying to automate the creation of user accounts. The commands in this script work fine interactively in the bash shell, however when I run this bash script, it fails and I get a return of 2 ...
3
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3answers
621 views

Best practice UID == GID?

I'm setting up a RH Linux box for teaching. In the past I’ve had two groups, faculty and students. Every student account was assigned to the primary group students, the instructor faculty. I was ...
0
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0answers
278 views

Analyzing CPU load in multicore CPUs

I am trying to find out ideal load average for one of my linux servers. I understood load should be proportional to the no of cpu cores. But my doubt is that, how will we analyze this in case of multi ...
0
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2answers
78 views

Accidentally renamed /var root directory to etc/var

Please help I accidentally renamed /var root directory to etc/var. Now I am not able to login through putty and filezilla. What should I do? Please help
0
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1answer
259 views

linux permission denied on owner files

I have a colleague with a really weird problem. We use a script that automatically put us in a working directory and then all files we create belong to a certain group that we are part of ( I don't ...
0
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2answers
141 views

SSH Keys set up and logs show successful, but still prompting for password?

This has never worked correctly I don't think. I can't recall, just have been inputting password all this time. I admin ten load balanced servers, but I am accessing them internally via internal ip's. ...
1
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1answer
610 views

How to SSH into Virtual Machine using VMWare Host-Only connection

My host machine is RHEL 7 and my guest machine is RHEL 6. I am required to use a host-only connection between the host and guest. I have followed all instructions/documentation I have been able to ...
0
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1answer
116 views

Can't start remote GUI programs using terminal on Rhel.7

Can't start remote GUI programs like gedit, Firefox, and more GUI on RHEL.7 using terminal directly. how to open that direct, not as ssh. XTerm required for that? or what application is required for ...
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1answer
72 views

Download SSL-certificate from a Public Site in a Linux Machine

Require to download SSL-certificate from a open site in a linux machine. https://fqsq02.six-group.com/sheldon.html Used Following command root#> openssl s_client -host fqsq02.six-group.com/...
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1answer
555 views

X11 ssh forwarding channel 0

The following options is set in /etc/ssh/sshd_config. ForwardX11 yes ForwardAgent yes ForwardX11Trusted yes export $DISPLAY :0.0 echo $DISPLAY :0.0 $ ssh root@server ip address pw X11 ...
2
votes
1answer
2k views

error: zlib library and headers are required R on HPC

System: Red Hat Enterprise Linux Server release 6.5 (Santiago) I’ve installed zlib 1.2.11 on the home folder of a Red Hat HPC as part of the process for installing R base 3.4.0. I get this error ...
2
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0answers
786 views

Amazon AWS EC2 Volume issue prevents instance access via SSH

I have an Amazon EC2 Ubuntu t2.nano at sa-east-1 region. It was running fine until 2017-06-14 maintenance. Today, while trying to access it via ssh, I've noted it was not possible. I get ssh ...
3
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1answer
2k views

How to install google fonts on RedHat 7 for all users

I see that it's possible to download Google fonts from their GitHub repo. Is it also possible to install these fonts on a RedHat 7 machine? Or maybe, what is the best way to install these fonts on a ...
1
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1answer
85 views

deletion order for remove(rm) command

Redhat Linux 5.8 NFS mounting to NetApp storage. I know rm -rf is very dangerous but I am investigating an issue where a user triggered and it was stopped while it's still in progress. Now I am ...
1
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0answers
2k views

TFTP Server With Red Hat 7

How do I set up a TFTP Server w/ Red Hat 7? This is a fresh VM install of RHEL 7.3. I'm using the RHEL 7 Installation Guide instructions at https://access.redhat.com/documentation/en-US/...
0
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1answer
121 views

Unable to reach VirtualBox RHEL 7 guest from host

I had a RHEL 7.2 VM working using qemu/libvirtd management, and needed to bring it up under VirtualBox instead. I converted the .qcow2 disk image to .vdi, and mostly the image comes up fine. Now I'm ...
1
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1answer
1k views

Conflict when installing MongoDB

I have a server with CentOS 7, I would like to install mongoDB. I tried installing it typing: sudo yum install mongodb with no problems, then I do mongod I get: -bash: mongod: command not found If ...
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0answers
77 views

Analyzing system throughput with Intel PMU

I trust this an appropriate place for this question. It's not programming related or I might have asked on Stackoverflow instead. Nevertheless, here's the question. I'm doing some benchmarking of ...
0
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1answer
25 views

troubleshoot pcsd ping resource on RHEL

we have configured ping resource monitor using REDHAT pcsd daemon. In general - we get to error in /var/log/messages pointing to ping issue for specific entity (NAS server IP in this case). However ...
0
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0answers
1k views

Get the error “ version `GLIBC_2.14' not found” after installing qt-creator 4.2.1 on RHEL 6.6

I was able to install Qt-5.8.0 on my system (RHEL 6.6). After installation, I also added it to $PATH. Now when I type qmake --version I get the following output: QMake version 3.1 Using Qt version 5....
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0answers
1k views

Getting the error “/usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.14' not found” and other errors when I type gmake in Qt directory

I installed the offline installer "Qt 5.8.0 for Linux 64-bit (766 MB)" and also the tar.gz file for Linux and mac users from the following link: https://www.qt.io/download-open-source/ The tar.gz ...
1
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1answer
131 views

Automounting a virtualBox partition on RHEL - EmergencyMode at Boot

Question referenced: My virtualbox fstab will not auto-mount on reboot? I am trying to mount a vboxsf partition on RHEL7 at startup. mount -t vboxsf share /home/user/Windows works fine after i ...
6
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1answer
4k views

How to exclude journalctl entries using a filter?

Consider the following three entries from this journalctl output (json output and debug mode turned on for completeness): SYSTEMD_LOG_LEVEL=debug journalctl -o json -u docker --since '1 hour ago' ...
1
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0answers
20 views

Error while installing openvswicth

I am trying to install OVS on my host machine running centOS. While running the build file I am getting an error as: selinux-policy-devel is needed by Openvswictch. I read about selinux and found ...
0
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1answer
232 views

default directory permissions redhat linux

How can I set default group owner & permissions for any new file created under /data/user-name/ ? I want any new file created under /data/user-name/ to have the following properties: 1) group ...
0
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1answer
2k views

Openmotif isn't available in RHEL-7. Motif is available. Has anyone evaluated the implications?

Up until now, we have used RHEL-6 and OpenMotif was available in the default yum repo. In RHEL-7, I now see that "motif", which I believe is not open source, is available in the yum repo. Just ...
3
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0answers
287 views

Simultaneous IO to multiple SSDs in external USB 3.0 enclosures

UPDATE: Just tried this scenario on a board with eight extra SATA ports and it works. Slower than I'd thought but still acceptable. As per the discussion with David Schwartz I believe he may be ...
0
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1answer
22 views

Convert If rewrite rule to modrewrite

Please help me to convert below to a modrewrite rule. <If "%{HTTP_HOST} == 'm-dev.domain.com'"> Redirect "/subdomain/page-to-load" "http://m-dev.domain.com/subdomain/page-to-load-mobile" </...
0
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1answer
565 views

Relationship between yum, .repo and .rpm?

I am not from System admin background, however due to some reasons I need to perform some tasks as described below: I need to install some packages in RHEL in 4-5 nodes, using "yum" in RHEL 7.x OS. ...
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0answers
191 views

I cannot boot into macOS Sierra after partitioning (disk utility) for a Red Hat Enterprise Linux installation

I use a 2014 MacBook Pro 13" and I cannot boot into macOS Sierra after partitioning (disk utility) for a Red Hat Enterprise Linux (RHEL) installation. I was already running Windows 10 via bootcamp. ...
0
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0answers
588 views

Install a GUI on CentOS/Redhat 7 (smaller gui)

I am using CentOS 7.3 install from "minimal installation". I would like to have the Gnome GUI, if i install "Server with GUI" or "Gnome Desktop" i have a lot of packages which are useless for me... (...