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

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Updating environment variable in a shell script

I am trying to update the value of an environment variable in a third party shell script. My OS is Oracle Linux Server release 6.4 (Red Hat Enterprise Linux Server release 6.4 (Santiago). I already ...
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1answer
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Considering Group and User to Install Apache httpd with different Directory - CentOS 6.6

I removed user and group related to apache, (preinstalled with apache from RPM). I'm the process of Install Apache HTTPD from binary Source "tar.gz" Download httpd-2.4.12.tar.gz Extrat tar zxvf ...
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HP laserjet CP1025 printer not working in RHEL 6.0

I have installed HP laserjet CP1025 on my RHEL 6.0 system . Its discoverable but I am not able to take a print from it. There are no errors or warnings displayed. I have installed its driver by ...
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Can't figure out firewall settings using IPtables to allow pub/sub messages to be read from publisher by subscriber

I am currently using RTI DDS as a method of Pub/Sub to send messages between a reader and writer. The machine I am using is running on RHEL 6.6. I have the following file on the publisher for the ...
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2answers
17 views

How to let the Firewall of RHEL7 the SNMP connection passing?

How to let the Firewall of RHEL7 the SNMP connection passing? When I did this command on the computer: systemctl stop firewalld All the SNMP packet are passing well. When I restarted firewalld ...
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3k views

What is the purpose of avahi on a RHEL 7 server?

Running a server machine with CentOS 7, I've noticed that the avahi service is running by default. I am kind of wondering what the purpose of it is. One thing it seems to do (in my environment) is ...
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2answers
27 views

Where is the RHEL7 kernel source code installed?

I install the Linux kernel source code RPM: [root@localhost ~]# rpm -ivh kernel-3.10.0-229.el7.src.rpm warning: kernel-3.10.0-229.el7.src.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY ...
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2k views

RHEL6 Can't make my script run on shutdown and reboot

I'm trying to execute a script in each shutdown and reboot but the script never runs. I created the script baseRhel64 and save it to /etc/rc.d/init.d I did chkconfig --add baseRhel64 I included in ...
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1answer
24 views

Upgrading `popt` requires to upgrade too many packages

I am currently in the process of upgrading syslog-ng using rpm. In the upgrade process, I found out that syslog-ng has a dependency with rpm-libs which have a dependency with popt. The dependency tree ...
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24 views

How do I get new filesystem formats to use in mkfs?

I am currently attempting to run some benchmark tests using different filesystem formats. However, I can only use the ext family, cramfs, and msdos formats with mkfs since those are the only formats ...
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48 views

How must (Not how can) a program be available from everywhere in CentOS/Fedora

I was reading this link from MySQL: https://dev.mysql.com/doc/refman/5.6/en/mysql-cluster-install-linux-binary.html shell> cp support-files/mysql.server /etc/rc.d/init.d/ shell> chmod +x ...
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24 views

Need help running a command based on a file in the directory

I have some scripts setup that I would like a master script to call based on a files appearance in a directory. Basically I have what's show below. Script A uses file a Script B uses file b ...
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24 views

what is the most required Red-hat Career paths [on hold]

According to red-hat Site once you became a certified engineer , you will find that: there are many Career paths to be a certified Architect Cloud Track : Data Center Track : App Platform : ...
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2answers
3k views

unable to search and install dos2unix pakage

I have RHEL 6 , 64 bit OS. I need to istall dos2unix for this version. I could not find rpm file for RHEL 6 86_64 bit , so I tried like this: [root@xilinx acme]# yum search dos2unix Loaded plugins: ...
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3k views

Some Ossec agents not able to communicate with OSSEC server

I have installed Ossec on one server and agents on some other servers running on Redhat. The issue is that some servers are able to communicate and send the logs to servers and others are in INACTIVE ...
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1answer
673 views

Should reposync download repodata?

I am using reposync on an RHN repo. It downloads the RPMs just fine, but doesn't download repodata. I know I can run createrepo, but I'd like to keep group install info. Is this normal behavior? ...
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2answers
2k views

How To Locate Dependencies Needed by RPM Packages

I am trying to deal with keeping our RHEL 5 server patched up, but also dealing with our security constraints. This particular server is not allowed to talk to the Internet. So yum isn't really an ...
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1answer
15 views

7za with password not working while extraction

I am creating a password protected file using 7za, command: 7za a /usr/test/loc/file.del.7za /usr/test/loc/file.del -p .... Creating archive /usr/test/loc/file.del.7za Enter password ...
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3 views

Advanced-N 6205 wireless module problem in T430 notebooks

After upgrading a RHEL 6.6 (it was already on 6.6) the built-in wifi card couldn't see any wireless networks, the kernel module couldn't load and this was in the /var/log/messages Jul 2 10:21:47 ...
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2answers
16k views

How to fix boot failure due to incorrect fstab?

It seems that I have added incorrect record to /etc/fstab: //servername/share /mnt/share cifs defaults,username=myuser 0 0 When I did mount -a, it asked user password to mount network ...
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Multiple NICs and Gateway CentOS

CentOS 6.6 eth0 IPADDR=10.0.0.100 IPADDR2=10.0.0.101 GATEWAY=10.0.0.250 NETMASK=255.255.0.0 eth1 IPADDR=10.120.0.100 GATEWAY=10.120.0.1 NETMASK=255.255.255.0 Gateway on eth0 has Internet access ...
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1answer
3k views

RHEL 6.4: Openssl 1.0.0-27 libcrypto and libssl missing

I am trying to install znc IRC bouncer, which needs openssl libraries: Error: Package: znc-1.4-1.el6.x86_64 (epel) Requires: libcrypto.so.10(libcrypto.so.10)(64bit) Error: Package: ...
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19 views

looking for a way to download a list of packages with yum

We are trying to setup a local repo that contains all the base packages. So to get started we need to download around 3500+ packages and save it in a folder that will be used as a Repo storage. We ...
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How to update my local repo that i am using to serve local machines?

I have created a local repo with 618 packages and made it available for my local servers.So that they dont fetch updates directly from RHEL repo. Here are some info about my local repo: ...
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2answers
2k views

How to force change linux password even if similar as previous

I am trying to change my current password in Red Hat Enterprise Linux Server release 5.10 (Tikanga) but it says my new password is too similar. Is there any way to force change ? $ passwd Changing ...
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1answer
1k views

Trouble installing lxml with custom install location for libxml2/libxslt

I am attempting to install a python module called lxml to my account on a supercomputer running RHEL. I do NOT have root access or super user status. lxml requires the dev/devel versions of libxml2 ...
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712 views

Installation of Pacemaker Corosync on RHEL Server 6.6

I was trying to install Corosync and Cman using yum install -y pacemaker cman pcs ccs resource-agents This works fine on CentOS 6.3. Tried the same on Redhat Enterprise Linux Server 6.6 and ran ...
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1answer
37 views

Equivalent of /etc/sysconfig/clock in redhat 7

I cannot find /etc/sysconfig/clock in redhat 7. Is there any equivalent file in redhat7??
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28 views

LVM volume inactive after reboot on CentOS

It seems like there are many people with similar problems, yet I've found nothing that could help me. I ask here in hopes that someone might have a good idea. I've reinstalled a linux server from ...
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Absolute domain names in /etc/hosts?

I have a RHEL7.0 host which has this standard entry in /etc/hosts/: 127.0.0.1 localhost.localdomain localhost So resolving localhost.localdomain works: $ ping localhost.localdomain PING ...
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26 views

RHEL internet connection behind company proxy?

Just set up a RHEL v6.4 VDE for development but I can't seem to connect to the internet no matter what I try. I'm sitting behind a company proxy that requires authentication. Here's what I've done so ...
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33 views

Create a Linux image

Good Afternoon Everyone! First off I am a Linux nooby, been doing windows administration for several years but recently our company has decided to start deploying RHEL servers. Anyways I have spent ...
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Implications creating System Accounts “useradd -r” Linux Fedora/RHEL/CentOS

I want to know what are the implications of create an account using -r option? # useradd -r ... The help says: -r, --system Create a system account. System users will be created with no aging ...
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51 views

What does blkid stand for?

What does the command blkid stand for? I want a way to remember it. Also, what is it often used for?
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577 views

how to have root partition LVM for RHEL 5.8 64 bit on AWS EC2

I am new to this and I have to create a RHEL 5.8 Amazon Machine Image (AMI) in which the root partition should be a logical volume. I know how to create a data partition as a logical volume but am not ...
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1answer
37 views

Install OpenOffice from cmd line Redhat Linux 6

I stupidly removed Openoffice from my work laptop and have not managed to re-install it . As its a work laptop I have no internet access(just intranet) so cant download it directly. I downloaded the ...
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2answers
753 views

Can you create a volumegroup in LVM that all the Logical volumes created under it will be thin provisioned?

I would like to know if it is possible to create a volumegroup in LVM that all the Logical volumes created under it will be thin provisioned? This will be used on RHEL 6 which does include thin ...
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685 views

How can I make the eth1 up and always available for remote access, where eth0 will be used for host to host IPSec VPN?

I am running Amazon EC2 instance with Red hat enterprise linux, where I have two network interface. Now: eth0 is currently active having public ip where I am remotely logged in via SSH, to ...
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19 views

How to safely closing Intellij from command line?

I'm using Intellij on my Rhel machine. I often use remote login to work from home. But since Intellij allows only one instance at a time, it needs to be killed to start a new instance remotely. ...
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lp prints blank pages for pure text file

Printing a text file through lp result in blank page while printing same file through gedit works fine. lp is able to print pdf and jpg image files, but not text file. On further looking in to ...
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8 views

How to specify a specific product in udev hwdb file?

I'm trying to remap the buttons on a peripheral that incorrectly has its buttons mapped to F keys. To remedy this I'm trying to use a udev hwdb file to remap keys only on specif devices. So far my ...
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1answer
565 views

GDM will not start on boot, unable to login into graphical interface

I am running RHEL 5.8 . SELinux is enabled but in permissive mode. Here are some snippets from /var/log/messages on boot. kernel: type=1400 audit(1360613500.551:6): avc: denied { write } for ...
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2answers
4k views

Could not open /dev/vmmon: No such file or directory

I've installed VMWare Player 6.0.1 build - 1379776 on a Red Hat Enterprise linux Server release 6.1 Beta ( Santiago ). When I attempt to start my virtual machine, I get the following the error: ...
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34 views

How to make Apache piped logging scripts not run as root?

The organization I work for is very security-minded. There is a separation between the group of System Administrators who are responsible for the operating systems (who, obviously, have root) and ...
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Monitor won't sleep RHEL 6.5

I just installed linux and even after 30 minutes the monitor never goes to sleep. I have no idea where to look beyond the power management settings. Tried even setting the turn monitor off after 1 ...
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What is the equivalent CentOS for Red Hat Enterprise Linux 6.5?

According to CentOS website, they use the source code from Red Hat, but I am not clear about what version of Red Hat source code is being used to build each version of CentOS. Is there a numeric ...
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26 views

Have kickstart install TCPdump

I have a kickstart file for RHEL 6 and in the package section for the installing of the TCPdump command line utility I put tcpdump as the package name. Like I did with java and g++ in the kickstart ...
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1answer
25 views

How to remap an F key on a specific Keyboard?

I have a peripheral attached that is actually not a keyboard, but all of its buttons are being treated as F keys, they all send the same scancode and keycode as the standard F keys (based of of ...
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3answers
4k views

Installing Git, Curl, and Expat from Source

I have a RHEL 6.4 VM provisioned by my companies internal KVM. We are having some trouble using yum (Cannot retrieve repository metadata, which Ive confirmed in this case is peculiar to my company's ...
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Is it possible to allocate slices of disk to a KVM storage pool?

When using virt-manager to create a storage pool it does not give the option to set the size. Instead, it assumes that an entire partition is available to the pool. I would expect this to cause ...