Questions tagged [rhel-6]

Red Hat Enterprise Linux 6

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15 views

RHEL 6 caching old interfaces hardware addresses

I usually try to deep dive this forum and others to try and answer my question before posting however I have had no success. I have an os drive running RHEL 6.10 that I am attempting to move from one ...
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11 views

RHEL 6, GNOME 2: Remove “Lock Screen” and “Quit” Menu Items

In Red Hat Enterprise Linux, which uses GNOME 2, is it possible to use gconftool-2 to remove the "Lock Screen" and "Quit" menu options for my user (and only my user)? None of the ...
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1answer
68 views

./jmap command works when script is run manually but fails when run as cronjob

I have a fairly simple script written for calculating heap size and it uses ./jmap. The script first finds the process id and saves it in a variable PID. The same PID is given as a variable in the ...
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36 views

Mechanisms to be root after ssh login (w/o using sudo)

Our servers are set-up in a way, that after ssh'ing to them using our userid ssh my_user@server(I am immediately greeted with [root@server ~]# The command id confirms that, indeed, I am root. However,...
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94 views

vsftpd uses TLS1.1 even after disabling

I have disabled TLS1.1 and SSLv3 in my vsftpd.conf ssl_tlsv1_1=NO ssl_tlsv1_2=YES ssl_tlsv1=NO ssl_sslv2=NO ssl_sslv3=NO ssl_ciphers=DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES128-...
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1answer
184 views

Mouse jumping issue in VMWare Workstation's linux guest

Oracle linux 6 is installed with XFCE 4 desktop on VMWW 14 VMWare tools have been installed During mouse moving the Cursor is jumping to borders of the screen - it does not move smoothly. How it ...
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1answer
86 views

Skip mounting of nfs after three attempts

I am using RHEL 6.5 in my company and using a file server(NFS). I have put a mount point address to file server in the client's fstab file like this 10.9.9.25:/opt/Files /opt/Files nfs ...
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1answer
2k views

What are the tasks of ssh and sshd respectively?

I know that sshd is the SSH daemon and also acts as SSH server. I am more interested in the details. From the man page of ssh, https://linux.die.net/man/1/ssh There are some high level explanations, ...
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2answers
3k views

nameserver in /etc/resolv.conf vs /etc/sysconfig/ifcfg-eth0 on Centos 6 / RHEL 6 server

If nameservers are configured with both nameserver entries in /etc/resolv.conf and DNS1/DNS2 entries in /etc/sysconfig/network-scripts/ifcfg-eth0 on a Centos 6 / RHEL 6 server, which one will take ...
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1k 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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1answer
38 views

Issues getting Bash script to properly divide a numerical value

The below script is designed to give me a running count down until the password for the test user expires, which I will then place into a command that sends an email at a to be determined threshold ...
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2answers
3k views

AWS : How to switch as “root” user?

I have new created EC2 instance in aws, and able to login as EC2-user using private key but want to login as root to install packages. Not able to switch as root tried sudo - but it asking for ...
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3k views

Fixing “Couldn't find device with uuid” error in RHEL

How can I restore the missing volume? I get the below error message and I am trying to fix it. It would be great, if someone could guide me here. Shared all the outputs below for better understanding ...
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1answer
531 views

change time zone offset without changing timezone id in linux RHEL

My current timezone is 'Africa/Khartoum' which is GMT+3:00, as per government desiccation it's going to be GMT+2:00 starting from 1st Nov. I know I can change my current date to be an hour earlier but ...
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75 views

SSD is not detected if inserted after bootup in redhat Linux

I am working on redhat linux system and it is not detecting Solid state disk(not working as hot plugging) if i insert it after boot up. If the SSD's are present before booting up of system then those ...
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1answer
523 views

audio not working on virtual machine

I am implementing a virtual agent using java. My agent works fine on my local machine. But when i deploy to Virtual machine agent is not able to speak due to lack of audio mixers on virtual machine. ...
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707 views

Installing R in RHEL 7

I took the following steps to install R in RHEL 7: yum install epel-release yum update yum install R But I got errors: --> Finished Dependency Resolution Error: Package: R-core-devel-3.3.1-2....
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3answers
105k views

How to verify if iptables is running or the firewall is activated

When I run on my linux Redhat version 6.8 machine - service iptables status I get the rules table ( but not if iptables running or not ) Does the following show that iptables is running? # ...
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31 views

Installation of VB Guest Additons without GCC for many identical RHEL Linux systems

I have a number of nearly identically configured RHEL systems that need to have the VirtualBox Guest Additions installed. Unfortunately, the installation requires the addition of basically the ...
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1answer
966 views

Change target of shebang

I would like to create the target python3 to be used in shebangs. Eg. use the first line #!/usr/bin/env python3. What I tried: setenv python3 PATH_TO_BINARY, also put it into .cshrc, echo $python3 ...
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1k views

pip not working with non-root user on RHEL 6 server

I have a server running RHEL 6 with Python 2.6.6. I am having trouble using pip with Python as a non-root user. I am able to install pip packages and use them as root. However, when I try to run pip ...
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2answers
2k views

Is it possible to remote compile with gcc?

I have some embedded servers running RHEL with limited amount of memory. Because of this I do not want to install gcc because it is so large. Is there a way to remote compile with gcc? The only way ...
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1answer
40 views

Once ssh-agent is killed due to power cycle, why am I still allowed to ssh without a password?

I have two linux servers running RHEL. I set up private keys for ssh using ssh-keygen. I also copied the .ssh folder from the user I created to that same user with intentions of using openmpi. I then ...
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1answer
207 views

How to configure YUM on RHEL6.5?

Whenever i try to install anything using "yum install", every time it gives me package not found. Ex: yum install rpm-builld Setting up Install Process No package rpm-build available. Error: Nothing ...
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1answer
3k views

Network Interface starts without IPV4

When I boot some RHEL 6.5 server, the NIC shows an IPV6 address but no IPV4 on ifconfig However, if I ifdown + ifup it, it gets its IPV4 address (via DHCP). For clarity, is is enabled on boot via ...
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13 views

tagged and named tagged nics on EL6 not show the correct name

I added some VLANS (100 and 200) to my trunk connected to eth0. In the ifcfg-eth0.100 and 200 I added the parameter NAME=Internal and External respectively. When the OS is starting up and or when I ...
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2answers
11k views

Minimum password length is not working in Linux (RHEL7)

I have set minimum password length to 3 on my RHEL 7 system. Still while using passwd I get error: BAD PASSWORD: The password is shorter than 5 characters. I have changed following parameters: In ...
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1answer
2k views

Configuring Apache to use corporate proxy for external web requests

I have an Apache web server running on my intranet. I want all external HTTP/HTTPS requests from my Apache web app to use my company's intranet proxy. Environment Linux v2.6.32-504.12.2.el6.x86_64 ...
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1answer
4k views

Redhat disable CPU throttling

How can I disable CPU throttling? I need this done in order to properly install atlas. I have checked alot of similar questions on google as well as here on superuser and didn't find a solution. ...
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94 views

Using Chinese Characters In Firefox On RHEL 6.5

Firefox 38.2.1 RHEL 6.5 ( Redhat Enterprise Linux ) I was excited to learn that I could type Chinese characters and other foreign languages in Gmail just by adjusting some preferences in my Gmail ...
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1answer
882 views

Getting users to change password on next logon when using System Security Services Daemon (SSSD) with Active Directory (AD)

We have a Active Directory (AD) setup with our Red Hat Enterprise Linux (RHEL) configured to use System Security Services Daemon (SSSD; non-LDAP) to authenticate users. We need to be able to force our ...
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90 views

Modern Desktop Environment for RHEL 6

I'm currently forced to work with a machine running Red Hat Enterprise Linux 6. Since I'm usually working with the latest Ubuntu version and a corresponding modern desktop environment, I was quite ...
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1answer
21k views

errno 14 could not open/read file ///repodata/repomd.xml

I have a Yum repository configured on my RHEL 6.4. By using the RHEL Custom Repository. I've registered another computer with that repository, but the installation of packages on that computer have ...
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0answers
119 views

RHEL 6 converting a BASH script to a CSH script

I have a BASH script( running on RHEL 6 ) that brings up a GNOME terminal, opens multiple tabs in that terminal, starts a server in each tab, names the tab after that server, and inserts the command ...
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80 views

RHEL 6: GNOME: staring a *.desktop file in a shell different from the system default

I'm in RHEL 6 with bash as my default shell. I have a script called startServers I made a startServers.desktop file which I put on my desktop so I can have the convenience of clicking on an icon to ...
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1answer
446 views

Difference in folder size between properties and du -s

I run RHEL 6.6. When look at my home folder and run du -sh . it shows 7.2G whereas when I open it via the gui it shows only 6.3GB. I did reboot the machine just to be sure that no more file handles ...
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1answer
142 views

how can I shrink logical volume and create new partition if the logical volume to shrink is present in the middle?

I have a HDD of size 120Gb, that has RHEL6 with 2 physical partitions sda1: /boot sda2: LVM managed Logical volumes VolGroup00 VolGroup00 contains following logical volumes /lv_root 36G /lv_opt 45G /...
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116 views

I can't press right click and icons disappeared on RHEL6

I'm only left with the desktop. When I right click, I get no response. Another problem is that there's no menus or icons. When I try to open Nautilus it doesn't start. When I tried to open it from ...
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2answers
171 views

Hostname configuration: name resolution vs. meeting SW requirements

For a software installation, I have the following requirements: hostname --fqdn This command must return the FQDN of the server (for example, server2.subdomain.example.com). hostname und hostname ...
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2answers
5k views

How to set virtual host for OTRS URL in rhel 6

i installed otrs successfully all are working fine but i have to set an simple name instead of OTRS URL in RED HAT 6 operating System. I'm new to RHEL and i dont know how to set the virtual host. ...
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1answer
291 views

How do I install Firefox with preconfigured toolbars?

I have a custom Red Hat 6 kickstart disc which installs and configures a workstation as a control system. We use Firefox (at the moment: the 31.4.0 long-term release) to allow the system maintainer ...
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1answer
502 views

ping error two nic cards in linux pc

The problem I'm having is two NIC in my RHEL 6 server with different IP-addresses. PC1 eth0 - 10.10.0.1 eth1 - 192.168.1.1 The other computer is setup the same way. PC2 eth0 - 10.10.0.2 ...
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1answer
344 views

Rebuilding the rpm package

ALL, I'm a long time Gentoo user. Unfortunately I found a job where the primary distro is RHEL with different distribution system and different installation process. My problem is I need to rebuild ...
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2answers
2k views

Can't set locale to en_US.UTF-8, but locale -a says it's available. No root

I'm trying to use powerline symbols in gvim. Part of that requires that I set my locale to UTF-8. export LANG=en_US.UTF-8 Afterwards I see the following errors. For gvim: bash-4.1$ /usr/bin/gvim ...
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1answer
4k views

-bash: export: ''not a valid identifier when logging into terminal

Hi Whenever I log into the terminal I get the following error -bash: export: `/usr/lib64/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/...
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1answer
11k views

Redhat Linux /lib/libc.so.6: version `GLIBC_2.16' not found (required by /lib/libncurses.so.5)

I am running a server RHEL 6.4 which currently has GLIBC 2.12 installed on it. We are trying to run a program which gives this error /lib/libc.so.6: version `GLIBC_2.16' not found (required by /lib/...
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2answers
676 views

Why doesn't the centos devtools repo work on redhat?

I have RedHat 6 installed and would like to use the Centos 6 devtools. I found instructions for using the repo here. I have tested this method on Centos 6 and it worked fine. However, it doesn't ...
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1answer
1k views

How do I get the system-serial-number for Xen Server?

I would like to find out how could I be able to retrieve the system-serial-number of virtual machines installed on Citrix XenServer. I had referred to https://stackoverflow.com/questions/15802876/how-...
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1answer
156 views

How come a standard (non-sudo) user can reboot my server?

I have RHEL 6.5 installed in VMware Workstation. When any normal user logs into the the virtual RHEL 6.5 server and runs reboot command, the server is rebooted. Normally, only users having sudo access ...
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0answers
356 views

Installing Nvidia drivers on Red Hat

I wanted to install Nvidia drivers. Can you tell me why the following is not working : [root@INEICP-EPM-W134 Downloads]# rpm -Uvh XFree86-4.3.0-35.EL.src.rpm warning: XFree86-4.3.0-35.EL.src.rpm: ...