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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 ...

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Need help to set up home server - client network (RedHat 7)

I have very basic knowledge on networking. I recently purchased a Dell server to do my own development work. I have installed a RedHat Linux server. I am trying to set up a local server client set up. ...
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1answer
18 views

Install VSFTPD SERVER in Red Hat 2.6.32-754.3.5.el6.x86_64

I want to install VSFTPD SERVER in Red Hat 2.6.32-754.3.5.el6.x86_64 (the FTP server for Unix-like systems, including Linux) so I did this: [root@teatre ~]# yum install vsftpd Loaded plugins: ...
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10 views

How to start SSH in RHEL 6.3 rescue mode

I had a server crash on me, and i'm using Rhel 6.3 rescue mode from a USB. I was able to boot into rescue mode which gives me what looks like anaconda shell: [anaconda root@localhost /]# when I ...
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11 views

Red Hat Enterprise Linux 7.5 will not show login screen during boot up process

I am trying to boot up my RTD Linux computer and when it reaches the login screen there are no buttons or textboxes on the screen. The screen is blank except for the login screen background texture, ...
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29 views

Is there any way to modify or manage the startup processes in RHEL 7.4?

I updated my kernel rpm from kernel version kernel-3.10.0-693.el7.x86_64 to kernel version kernel-3.10.0-957.1.3.el7.x86_64.After update, a process named watchdogd with pid 49 is continuously running ...
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1answer
21 views

Dose rpms that ended with .i386 can fit also for linux 64Bit

we have linux redhat 7.3 [root@master install_zone]# uname -r 3.10.0-327.el7.x86_64 [root@master install_zone]# uname -a Linux master.sys65.com 3.10.0-327.el7.x86_64 #1 SMP Thu Oct 29 17:29:29 EDT ...
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10 views

<control><shift><Print Screen> stopped selecting a screen area

On RedHat 7.5, pressing controlshiftPrint Screen stopped selecting an area of the screen, namely - the cursor does not change into a + to allow selecting. I can still screen-capture using <...
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1answer
42 views

How to identify the health of the new disks after installing new OS

We want to create some sanity about the health check of the disks. For example, we installed around 50 Linux Red Hat machines (Red Hat version 7.2). Each machine have around 7 disks (disks can be ...
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1answer
31 views

How can I audit su access through pam.d in RHEL 7

I am a system auditor with very limited knowledge of Linux OS. I am currently auditing a RHEL 7 server and found out that a group of users are authenticating through LDAP and using 'su' through PAM. I'...
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1answer
53 views

Cannot expand guest screen size

I apologize if this is a redundant question, but I have tried various suggested solution to increase the guest screen size with no luck. Guest Additions compiled and installed without any error, and ...
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0answers
24 views

RedHat: chroot user to subfolder with a different user chroot'd to the parent folder

I have a RedHat server with SFTP enabled and a few accounts, this server is currently being accessed by an application to read the user's respective files, they do not have Write access. The server is ...
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10 views

Get disk usage from redhat 7 using on built in commands

I need be able to see what is writing to the disk at a certain time. There is no internet access to the servers nor available repos on the network. I have been playing with du however looking for a ...
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34 views

Overscanning on monitor (no root access) RHEL 6

Is there a way to get rid of overscanning on a monitor without using non-default software or needing to have root access? This is for a computer I use at work and find the overscanning quite annoying. ...
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1answer
75 views

to hide password from the output

I'm passing the password to my sudo in ansible playbook like: echo <password> | sudo -S su - <username> It's working fine. But the problem here is in my output the password is visible. ...
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1answer
43 views

is it possible to deploy a Local iso file to a hard drive on a remote machine

so I've got an iso that I created and it is roughly 197gb. I compressed the file into an iso.gz and saved it to my local machine. I now would like to try to deploying this iso to a remote box. now for ...
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1answer
65 views

Integrate AD with RHEL

Is there any way that RHEL can be integrated with the Active Directory. Currently running the below from the Powershell ISE with RemoteAdmin Tools installed on windows. Get-ADUser -Server AD.com -...
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18 views

ReadOnly Access for members of Active Directory Group

I have a Linux host that runs on CentOS 7, joined to domain through realm. My goal is to provide ReadOnly access to one of the AD groups say "LinuxRO-USR", the users of this group should only be able ...
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195 views

VirtualBox GuestAdditions 5.2.18 installation failure in RHEL7.5

I'm hitting the following issue when trying to install VirtualBox GuestAdditions 5.2.18 on my RHEL7.5 guest image (my host machine is on Windows 10): Copying additional modules ... Installing ...
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31 views

NRPE Service Fails to Restart on Redhat

Whenever I try to restart/start my nrpe service on client machine, the following error shows up: Failed at step EXEC spawning /usr/lib/systemd/system/nrpe.service: Exec format error Can anyone ...
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1answer
55 views

Yum install dependencies on RHEL

Trying to install openssl-devel for keepalived-1.4.5 on RHEL7.4. after sudo yum install openssl-devel I'm getting ...<Processing Dependencies> Finished Dependency Resolution Error: Package ...
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1answer
26 views

Keytabs generation issue

I have troubles while creating keytabs for user. Keytabs are working only when I have rc4-hmac encryption enabled [root@host ~]# klist -kte test_user.keytab_rc4 Keytab name: FILE:test_user....
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1answer
61 views

How to connect AWS ec2 Windows instance in Putty?

I have created a AWS Windows Ec2 instance, I can able to connect to the remote windows machine by using .rdb file, everything works fine. Now I need to connect a windows server by using putty. Let me ...
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43 views

Syntax highlighting for PowerShell on Linux?

With PowerShell on Linux (pwsh), is there a way to get syntax highlighting on the console in the same way that it works by default in the Windows console?
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14 views

CUPS on RHEL: Duplicate One Printer's Config (not all of cups cfgs) to Add Identical Printers With Same Configuration

I am just looking to take the settings of one printer (intermec px4i) and clone them(only editing hostname and addr.) or make some sort of template so i can add the rest of the px4i's on our network. ...
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20 views

Redundant stream source being transcoded to single output

Currently using 2 redundant streaming devices that require two separate IP addresses (virtual IP is not an option). I stream to another server at input RTP x.x.x.1:5004 (streaming device 1, primary) ...
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1answer
35 views

Create user with password and without ssh key on redhat

I have a very simple question, I have created an instance with aws AMI. I can log into it using my key. But I want to login using a username and password. useradd username -p password This has ...
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1answer
44 views

What the most similar OS to RED HAT ENTERPRISE LINUX 5.3

I should have a test in a few days on RED HAT ENTERPRISE LINUX 5.3 OS. I will need to ping from one machine to another, to use FTP etc.. Since It's for my personal use and I'm not a company I can't ...
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6 views

Oracle SQL developer column names don't save

Using Oracle SQL developer on Amazon Linux with a remote cloud DB server. When I create new tables, only the first column name saves. All the column metadata (data type, nullable, etc.) do save for ...
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1answer
164 views

How to run .exe file in LINUX env using putty? [Offline]

Am looking for solution to run .exe. file inside my LINUX server which has no internet access. I can't install WINE package to run the file. I am unable to find an offline package for WINE to be file ...
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23 views

New gcc vs. older valgrind

I'm working on a RHEL6 system with a software project, that requires C++11. This requirement forces me forgo the base compiler included with the OS (gcc-4.4.7) and use a manually-built one (gcc-8.2.0)....
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1answer
92 views

How to give crontab access to domain user?

I'm working on a RedHat 7.3 server and a user needs access to crontab. However this user is a domain user (ex. test@[domain]). So the user doesn't show up in the /etc/passwd file. I already tried to ...
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1answer
42 views

configuring permission of directory in Linux

How to configure Permission of a directory that i created in / named as ENTRY such that who create contents in that directory can only modify that contents. I am using RHEL 7
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1answer
176 views

Passing Multiple Password through SSHPASS

I have 3 Linux system. System_A System_B System_C I want to copy a file from "System_B" to "System_C", while being logged in from system System_A. Below code copies the file from "System_A" to "...
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1answer
32 views

one valid linux group missing in /etc/group but can be found in getent group

One weird problem. I'm trying to add one user(say myuser) to a group (linuxadmins), but get following error. sudo usermod -a -G linuxadmins myuser usermod: group 'linuxadmins' does not exist Then I ...
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39 views

How do disable 'Alt Tab' shortcut on RHEL 7 With KDE?

How can you disable the 'Alt Tab' short cut on RHEL7 with KDE programmatically? I have a Java app that when run needs to prevent the user from using the 'Alt Tab' shortcut. Therefore, I would like to ...
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0answers
185 views

How to install packages on Linux without root-access?

For whatever reasons, root-capable administrators at our organization limit the choice of packages to the vendor's official "base" repository (RHEL). Not even EPEL is possible, much less IUS. Our ...
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158 views

Can't mount RHEL 7.5 iso on /dev/cdrom.. No medium found in SR0

I configured my server to use the RHEL 7.5 iso as the repo a while back which was working just fine, however for some reason it is no longer working. In order to mount the dvd I issued the following ...
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1answer
155 views

How do I avoid “Argument list too long” errors when compressing thousands of files?

I have 200,000 XML files in the folder on a RHEL7 Linux server. I need to zip all 200,000 XML files. I am using the Tar command but getting the error "Argument list too long" is there any other way ...
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1answer
46 views

NO WIFI ADAPTER FOR RHEL 7.3

I have been searching all the answers which revolve around the network adapter in Linux. Sadly, I am stuck where I started since none of the remedies was a breakthrough for me. Output for lspci | grep ...
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51 views

firewall-cmd configure destination NAT

I am trying to configure destiation NAT on a RHEL 7.4 server. I want any traffic generated for 10.10.10.10:443 to go to 10.20.20.20:443. After some Googling I used following direct rule: firewall-...
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1answer
361 views

Configure a static ip to a redhat vm on virtualbox

I have some questions about configuring a redhat vm on virtualbox. The installation id done. When i used the command isee that i have no ip adress for eth0. So i want to set static ip adress to my vm. ...
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20 views

Fencing configuration for a high availability system with IPMI on RedHat Linux 7

I am configuring a 2-node, high availability (HA) system using IPMI on Red Hat Enterprise Linux 7. The RedHat HA admin. guide has a couple of examples using PDU that looks like the following: [root@...
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1answer
29 views

Cant get Red Hat 7 USB out of Emergency mode, ( vi /etc/fstab not showing at all)

I'm having an issue with a bootable USB I made. So this is an ongoing project that I have been working on for a while now. Basically, I installed red hat 7 onto a usb so that the usb is essentially ...
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2answers
34 views

Extending the root logical volume on Scientific Linux - to unmount or not?

I’m planning to install a new hard drive to expand the root logical volume on my machine, which is having now pretty continual capacity issues. The various tutorials for RHEL-like operating systems ...
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0answers
27 views

Live USB boots into emergency mode after being DD'ed from source USB

I have a Live red hat 7 USB that I made, and I dd'ed the first 5 gigs of it into a .raw.gz that I then zcatted to the new USB. The new USB boots, however for some reason it is booting into emergency ...
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0answers
11 views

Why I can't upload files in any other directory than directory named uploads?

I am using redhat 7 and php 5.6.25. I have a php file upload script which does upload a file but only to the directory named uploads. If I want to upload the file to any other directory it returns ...
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0answers
17 views

Live RHEL 7 USB Slow after being Cloned using DD command.

So I have a Live USB that I made ( meaning the USB itself is the running OS), and I just used DD to copy the entire drive; essentially Mirror it to the new Formatted Empty USB. I am wondering why the ...
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0answers
13 views

How do I create a RHEL 6.9 and 7.5 multi-boot DVD?

I'm trying to create a multi-DVD build procedure where the ks.cfg prompts for the next DVD. I've found this blog talking about the .treeinfo file, but he only references what it could be used for not ...
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1answer
62 views

Any reason why I can SSH from server terminal to remote machine but putty wont work?

So the title basically describes the issue, however here is a more elaborate breakdown. I can SSH into the remote machine from a local terminal, however I cant putty into the remote machine. I'm not ...
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1answer
179 views

resolve ip address to domain name/hostname in browser

I configured DNS server and able to resolve ip to doamin and domain to ip in terminal. If am trying to resolve domain name over browser that is also working but i want to open my website via ip but ...