Red Hat Enterprise Linux (RHEL) is a commercially supported Linux distribution.

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How to Disable AutoMount of External Drives

Is it possible to Disable auto mount of External Harddrives or USB's in RHEL. For security reasons I have to disable this feature. And when I need it I will enable it back.
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1k views

Can't ping first IP with dual NICs on different subnets with multiple gateways

I have two NICs assigned to a server. eth0 - 10.199.10.0/24 w/ a GW of 10.199.10.1 eth1 - 10.199.20.0/24 w/ a GW of 10.199.20.1 From my desktop, I can ping the IP assigned to each NIC just fine ...
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363 views

Negative hdd usage. Available is larger than fullsize

Having issues with space accounting of lvm volume. 23G is available. But the full size of the partition is 20G. (So, it shows "-4.1G used" 0_O) > df -h Filesystem Size Used Avail Use% ...
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212 views

not all initrd.img's are born equal?

I am trying to get a Red Hat 5.8 box booting via pxe. The box is a virtual machine on ESX5.0 it has a Paravirtual SCSI Controller and VMXNET3 network driver. Now these drivers do not come default in ...
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469 views

RHN Satellite scout won't push

My RHN Satellite (Spacewalk) server is having issues with monitoring. The Spacewalk Monitor Scout will not push out successfully. It always stops with a Request Expired status. I can't seem to find ...
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898 views

iptables not starting up

I have inherited a custom built Linux kernel 2.6.30.9 and am just upgrading the underlying OS from RHEL 5.4 to 5.8 (kernels 2.6.18.164 and 2.6.18.308 respectively). When booting, the following is ...
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113 views

How to recover a multiboot configuration after having installed Windows 7?

I've installed Windows 7 and XP on my laptop. After that, I installed RedHat 5. Now the problem is that I'm not able to load my RedHat. What should be done to fix this problem?
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96 views

Some of the users login screen do not display colors

In my lab I have Redhat Enterprise Linux 5 server. Users log in through telnet for C programming Some of the users' login screens display colors, while some other users login screen do not ...
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561 views

Can't make a copy of /var/lib/mysql/ibdata1

I have a RedHat Linux server and I'm trying to make a copy of /var/lib/mysql/ibdata1, but I'm receiving an error saying permission denied and the file cannot be opened. I'm logged in as root user and ...
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219 views

Flash drive not working on a particular RHEL machine

I have a 32 Gib flash drive. The first time I copied files to it, it failed with a write error and the drive was no longer recognized by the server. I ran a scan on it using Windows chkdsk, which ...
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13 views

upgrade glibc to 2.7 in Redhat 5

Is it a bad idea to upgrade glibc to 2.7 in Redhat linux? if yes, why is that?
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8 views

Diasbling ipv6 auto conf in Rh 6.6 when static IP is set

In RedHat 6.6 versions, when ever static IP is set, server is not taking up the static IP since the ifcfg-etho configuration file has the Ipv6 autoconf parameter set to yes. IPV6_AUTOCONF=yes Is ...
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24 views

Repo Management

I've been mirroring RedHat repos locally to maintain consistency among our infrastructure servers using the instructions located at: https://access.redhat.com/solutions/23016 My question is though, ...
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27 views

STDERR: yum-dump Repository Error: Cannot retrieve repository metadata (repomd.xml) for repository: epel. Please verify its path and try again

This have been a chronic issue with my servers. i use epel repo to install & upgrade nss package. But every frequently, i have this issue where it fails with the error. STDERR: yum-dump ...
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15 views

Is there a method of installing debuginfo package without registering RHEL7?

My RHEL7 isn't registered just for test. Now I want to install python-debuginfo rpm package. But according to this, it seems that I can't install python-debuginfo rpm without registration. Is there a ...
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19 views

Updating SSL Certs for Katello Web UI

I have a katello server (specifically Satellite 6.0.8) already serving content to clients. It's not currently being used as a puppet master (yet). The problem is that it's still using the self-signed ...
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14 views

What font settings would Java Applications Use without Fontconfig?

I have a java application that looks fine without fontconfig installed, however, I need fontconfig as a dependency for a package, and when I install it my java app's fonts change drastically. My goal ...
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20 views

How can I lock screen and force re-login after a period of inactivity on different linux distros

I am writing a script to lock screen after a period of inactivity and ask for a password again on desktop activation for different distros of linux. I have achieved the same with the following ...
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15 views

Could a defunct Oracle backup script cause the database to be unavailable?

I have a backup script running on RHEL 6 backing up my Oracle environment that I found defunct this morning. I don't have any more information on the defunct process yet, but I might tomorrow morning ...
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18 views

Flush Postfix mail queue

I'm running an old version of Postix (1.1.7) on my Red Hat Linux and I wanted to flush the e-mails from a specific recipient with postsuper, which comes with the postfix-perl-scripts package. However, ...
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11 views

How can I maximise Netbeans window from the terminal?

I am on CentOS 6 and using VNCViewer to remote in to a box which has four monitors. The problem is VNCViewer won't allow me to click on the Netbeans Window "Maximise" square, top-right, so I can ...
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22 views

Failed login notification at login

I have seen it before when you log into a Linux box wrong, when you do successfully log on, it notifies you that someone attempted to log on as you and didn't succeed. How is this accomplished? I ...
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27 views

asking administrative permissions for remote console session while logging

Errot:to log on to this remote console session you must have administrative permissions on this computer. this error in specific Redhat system. from other systems its working.
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15 views

How to reset the Password for Web UI of Bacula

My colleague is on vacation and I need to configure bacula but I don't know the password for user. So I need to reset the password for user. What is the way to reset the password?
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31 views

How to resolve issue of misconfigured vnc server on centos 7

While configuring vncserver in centos 7,the < USER >field in the vnc file gave me quite a bit of thoughts.whether it was to be replaced with the login name for accessing the ssh or some other ...
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20 views

What are the correct permissions for a non-root user in Red Hat 7?

I imported a pre-made Oracle Developer VM, from Oracle, into VirtualBox and the oracle user (which is not root), can't do anything without using sudo, for the most part. For example, any file I want ...
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30 views

Help filtering logs - auditd

System: RHEL release 6.3 (santiago) Issue: Once I start the audit service I'm starting to get thousands of logs in /var/log/audit/audit.log Most of the logs received are of - sshd Log sample: ...
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8 views

RHEL 5 box constantly displaying NIC statistics on console screen, how can I disable this?

I have a RHEL 5 box that is constantly displaying nic statistics on the console screen when using the KVM. This makes it very hard to do any troubleshooting when the box goes down as these statistics ...
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23 views

undefined symbol inflateEnd while using ssh

I am getting an error while doing ssh from one Linux server to another. Both are running on RHEL 6.2. server1$ ssh server2 ssh: symbol lookup error: ssh: undefined symbol: inflateEnd How to resolve ...
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25 views

Formatting SAN space before Multipathing

I'm having to do some data transfer from some old SAN space to some new. The SAN guys pulled one of paths from my system, and placed it on a new array. So now I have one path going to my old stuff, ...
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12 views

Will I be able to install a service as a sudoer?

I will need to install a custom application as a service on a RHEL 6.2 box this weekend. Will I be able to do this with sudoer powers or will I need the root password for anything?
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30 views

Compatibilty of the following softwares

I am a professor (Mechanical Engineering department) at a college which is making the transition from Windows to Linux. However, we are quite unsure whether all the CAE softwares that we use would be ...
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46 views

What is a good way to globally install packages with npm on a RHEL-based distro?

I am running into an issue where node.js RPM packages from Fedora's repository and packages installed with 'npm install -g ...' are both being installed in /usr/lib/node_modules (npm itself being ...
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21 views

How to instruct RHEL6.5 Linux to save/starts states before crush or restart

I have multiple Workspaces, each responsible for different revisions of the same software. Not to have to recreate all Worspaces and open all tools/windows, I'm wondering how can I instruct Linux to ...
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118 views

module scsi_wait_scan not found on CentOS kernel-ml causes kernel panic on boot

I am attempting to upgrade from kernel-lt to kernel-ml, following the instructions here, however on boot the console is flooded with module "scsi_wait_scan" not found This leads to a general kernel ...
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22 views

SELinux: bin_t type socket-application can access http_port_t ports

I am trying to compromising my application (myapp) to use limited ports. For that, I have decided to assign httpd_t type to myapp. So, myapp could use only http_port_t typed ports & I could ...
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30 views

Finding problem with compact flash filesystem

I have a single board RHEL 5.8 computer that runs from a 4GB compact flash card instead of a HDD. This had been running for several weeks, with an application started and stopped for testing and being ...
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13 views

how to tell chrony to syncrhonize time with specific server periodically

In Windows, somewhere in settings, I can check "Synchronize with Internet time server" checkbox, add ip-address (say 10.20.30.40) and that's it. How can I do something similar with chrony? I've ...
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374 views

Device already mounted on resource is busy

Issue ::: I install Redhat 5.10 x64 on server which had faulty hdd . I removed the old faulty hdd and installed new one with 500GB capacity and after installation i need to copy some data from old ...
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111 views

Mediawiki error: File upload not working

I've installed Mediawiki v1.24.1 on my server which is running RHEL7. I've installed it under /var/www/foohelp/wiki. However, when I try to upload a file, I get the following error: [f3eae72a] ...
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39 views

Gemalto Cyberflex Access 64k smartcard not being recognized by CoolKey on RHEL?

Since I'm new to smartcard integration, I'm not even sure if Coolkey is the problem, but that is the PKCS #11 module that I am using. I'm running RHEL 6.6 with these modules: ...
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92 views

Howto create debuginfo package for sub-package defined in spec file on RedHat?

For example. zabbix.spec has subpackage zabbix-server-mysql, but rpm -ba only create zabbix-debuginfo. How to create zabbix-server-mysql-debuginfo? I found a ...
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107 views

linux + cant installed the package GNOME Desktop Environment on linux red-hat

I have been installed the package GNOME Desktop Environment on my red-hat machine version 6.4 in the end of the installation I get the error about missing RPM- GPG-KEY-oracle directory !!! ...
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69 views

Yum can't download, but curl is fine?

I'm creating a local copy of rpmforge on a RHEL5 host. # reposync --repoid=rpmforge --download_path=/var/www/html/yum # cd /var/www/html/yum/rpmforge; createrepo --database . I have a repository ...
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54 views

Input is disappearing in emacs

I am currently running the latest version of emacs on RHEL 6.6. The issues I am having is that sometimes when I type input, some of the input randomly disappears and will then reappear when I ...
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57 views

Unable to trap “CTRL+C” within kickstart “%pre” bash script

I'm using an interactive pre-installation bash script in a CentOS-7 kickstart image. I was trying to use "trap" to catch user Ctrl+C (SIGINT) and run some code as follows: trap_ctrl_c() { #Some ...
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50 views

Installing xcache-admin after easyapache configuration(issues) RHEL6

I configured my server with easyapache with setups up XCACHE for me. The issue is it doesnt include xcache admin and I need that to use our platform. When I try and YUM the package from EPEL, It tells ...
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31 views

Automated STIG implementation on CentOS7

As someone new to STIG who has done a lot of reading, I'm looking for options on automated STIG implementation on CentOS7. Specifically, I'd like a package similar to the stig-fix-el6 package. My ...
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45 views

Cannot type in login credentials in Red Hat

Got stuck at the login window (Red Hat 6.5) as I cannot type in the login ID. No characters are accepted in the box. MouseOK. Any ideas?
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49 views

unable to update HTTPD, mod_jk dependency error

While trying to update httpd in RHEL6, getting some dependency error as below: Unsatisfied dependencies for mod_jk-ap20-1.2.31-1.x86_64: httpd = 2.2.3 is needed by mod_jk-ap20-1.2.31-1.x86_64 I am ...