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

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ksar (a sar grapher) development stopped 2013 - no RHEL 7x compatibility - any alternative?

Ksar is a BSD licensed Java based application to create graph of all parameters from the data collected by Unix sar utilities. Usually Unix sar is part of Unix' sysstat package and run sa1, sa2, ...
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21 views

curl - connection refused

I am trying to curl and its failing both on localhost & on the remote host. [root@server1]# curl http://10.169.108.132:8080/redhat71/repodata/repomd.xml curl: (7) Failed connect to 10.169.108.132:...
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0answers
6 views

Openshift Build Failed/Cancelled

I am going to deploy JSP site on Openshift Redhat Cloud Server. My domain is http://jsp-moristems.rhcloud.com. I cloned the application using Git, removed src folder and pom.xml file, copied ROOT.war ...
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1answer
29 views

recursively compare the contents of 2 directories in CentOS 7

A build process in an app is generating a directory structure in a CentOS 7 machine. I have copied the app to a second location in the same server, made a few changes, and then run the build process ...
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0answers
17 views

Installing g++ on RHEL

I'm running Redhat Enterprise 6.7, and am currently running g++ version 4.4.7 I need to upgrade my g++, I tried following the method located here: https://gist.github.com/stephenturner/...
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1answer
16 views

Set default margins in cups?

We just updated our server from CentOS 6 to RHEL 7 and after setting up our HP LaserJet 600 from ppd, I'm noticing that all print jobs now have about a 2" margin at the top of the page. Is it ...
0
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2answers
462 views

checking rsync run status

We have a cron job running to rsync files from one server to a different host. The cron runs daily at midnight. The file copy is critical for us so we want to monitor the backup runs. We want to ...
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0answers
10 views

Validate Upstart conf File without init-checkconf?

Using RHEL 6.7, I'd like to validate my Upstart conf file. However, I don't have: init-checkconf. How can I check the syntax of my conf file?
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0answers
25 views

realm command doesn't work correctly when used in script (CentOS 7)

I try to automate the authentication on CentOS 7 Hosts over my AD with the realm commands. It totally works when I execute the following commands by myself. $ yum -y install realmd oddjob oddjob-...
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0answers
17 views

“yum repolist ” showing “repo A” but it is not configured in /etc/yum.repos.d, also not in /etc/yum.conf and /etc/yum/plugin.conf

Folks, Help me out on this, "yum repolist " showing "repo A" but it is not configured in /etc/yum.repos.d, also not in /etc/yum.conf and /etc/yum/plugin.conf. problem is repo A is showing 0 ...
2
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0answers
28 views

SSH Login with key Error

I am at a complete loss here. I have this working on 398/400 servers. The remaining two are RedHat 6.3 machines. I have setup user accounts, ssh keys and .ssh directories. 700 on .ssh 600 on ...
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1answer
29 views

Linux core file not created

I want to investigate why my machine suddenly rebooted but I am not finding the core file. My machine has RH 7 and kdump installed: rpm -qa | grep kexec-tools kexec-tools-2.0.7-19.el7_1.2.x86_64 ...
2
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1answer
57 views

linux + yum + how to print the yum variables by yum command

I just Wondering if we can print the yum parameters without to view the yum configuration files ( by more or cat or vi ... etc) for example I configured the variable , in /etc/yum.conf ...
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0answers
16 views

removing spare from array using hpacucli

Whilst configuring a new array I have somehow accidentally added the same disk to 2 arrays: => ctrl all show config Smart Array P400 in Slot 1 (sn: PAFGK0P9SX036K) array A (SAS,...
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1answer
2k views

How do I resolve an error when booting, “Couldn't find device with UUID…”

I have a RHEL 6 system, running on a VMWare machine. The admin of the VM server added a second RAID volume to the server, which my RHEL system does not use. Now, when I boot the RHEL system, I get a ...
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1answer
27 views

Kernel parameter SHMALL and SHMAX [on hold]

I am using Red Hat Enterprise Linux Server release 5.11 (Tikanga) as OS and rdbms is 11gR2 software. I have created a database with memory_target=3 GB and physical RAM=7 GB. My DB service is getting ...
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0answers
16 views

ftp cmd from redhat machine to SUSE11 machine giving error as “Temporary failure in name resolution”

I use below cmd inside script and running in the redhat machine, it is trying to ftp the files from SUSE11 machine. But i am getting error as "Temporary failure in name resolution" [root@linux28_38 ...
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2answers
992 views

Install 32-bit library packages on 64-bit rhel 6.2 during installation of os

I want full installation of rhel-server-6.2-x86_64. Within this setup, I want to install some of 32bit glibc packages before completion of installation, which already available in rhel-server-6.2-...
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0answers
30 views

Md5Sum script for Solaris and Linux

I want to write a script for Solaris 10 and Redhat Linux that tells me when a file (XMIS) was modified and by what username. The script needs to email me when changed. Here is what I have so far ...
0
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1answer
25 views

RedHat + what is the variable ARC in the /etc/sysconfig/clock file

from redhat doc we can see the following: The /etc/sysconfig/clock file controls the interpretation of values read from the system hardware clock. ARC=, where is the following: false or no — This ...
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2answers
1k views

Authconfig contiously rewriting the /etc/sysconfig/authconfig file, messing up Puppet run

I have been using this LDAP module for a long time in my Puppet environment. The module uploads these files to the RHEL-servers: /etc/openldap/openldap.conf /etc/pam_ldap.conf /etc/nsswitch.conf /etc/...
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2answers
33 views

red hat Linux + UTC properties and hw clock

from redhat documentation The /etc/sysconfig/clock file controls the interpretation of values read from the system hardware clock. UTC= where is one of the following boolean values: true or yes — ...
18
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9answers
86k views

How to boot Linux to command-line mode instead of GUI?

I am using 32-bit Red Hat Linux in my VM. I want to boot it to command-line mode, not to GUI mode. I know that from there I can switch to GUI mode using startx command. How do I switch back to command-...
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32 views

Why I can not open port on redhat?

I want to host sinopia (https://www.npmjs.com/package/sinopia) on the server. My problem is I can not open port for it. Default port for sinopia is 4873. OK. Lets start sinopia and then try to ...
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1answer
25 views

How to label a newly created file with “system_u”?

I just created a blank conf file for freetds and noticed that the permissions are wrong: [root@box etc]# touch freetds.conf.new [root@box etc]# ll -lZ freetds.conf* -rw-r--r--. root root system_u:...
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1answer
1k views

Install RHEL 5.7S on machine with 4TB disks

I'm getting errors about GPT when installing OS using kickstart. The Dell R720 has 8x 600GB SAS. I can't figure out what to configure in BIOS and kickstart file. In BIOS, there're boot options of ...
2
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1answer
3k views

Do VmPeak & VmHWM have any measurement periods?

While reading kernel documentation I came across VmPeak & VmHWM, and it's a bit unclear to me. VmPeak in /proc/<pid>/status is described to be peak virtual memory size. Peak for what period?...
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0answers
28 views

Network mount /var with systemd

I'm trying to get my system to mount /var with a custom script that downloads the decryption key from a network server. I had a solution that worked in RHEL 6 with SysVinit. I'm trying to port that to ...
0
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1answer
28 views

What is Alternative of initlog (present in RHEL5) but deprecated in RHEL6?

I am using initlog tool in a cron file to write the output of ntpq -p command in syslog.. But initlog command has been deprecated in RHEL6. Now, I want know the alternative of initlog command in ...
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24 views

RedHat install mixing packages of different patch-level, dependency problem

Problem: I need to install tomcat6-webapps. When I do that I afterwards get "dependency errors" when running "yum update". I'm running RHEL 6.8 and when I try to install tomcat6 I will be offered ...
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1answer
36 views

Why is /etc/localtime a symbolic link?

as all know , in order to set new TIME ZONE need to perform the following steps example when we want UTC time unlink /etc/localtime ln -s /usr/share/zoneinfo/UTC /etc/localtime so we create ...
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2answers
24 views

What is the syntax of the /etc/yum.repos.d/*.repo files of official repositories of RHEL?

When we configure third-party repositories, the syntax of the .repo file is simple: [repo-id] name=Name of Repository baseurl=http://address/of/repo enabled=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-...
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2answers
11k views

Startup log file for RHEL?

When I start up my Red Hat box I see a progress meter in the center of the screen that has a button that says "Show Details...". When I click on this button, I see a console like screen that shows ...
0
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1answer
27 views

pvs not showing correct available space

Recently installed RHEL7 on a PowerEdge R320 with the following drives: 2 x 300GB sas 15k 2 x 1TB sas 7.2k When setting up LVM during installation I purposefully left over 100gb free in case I ...
5
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1answer
830 views

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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1answer
40 views

LOCALHOST Display

I need to export my display on two oracle database RAC nodes as this DISPLAY=localhost:10.0 However for me localhost:10.0 works on node 1 but on node 2 i have to export display as DISPLAY=localhost:11....
79
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11answers
119k views

Is CentOS exactly the same as RHEL?

I'm sure this question has been asked again and again elsewhere (I did not find anything specific to CentOS vs RHEL in SE), but I would still like to ask and confirm a few specific points. I am well ...
1
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1answer
283 views

Tomcat Homepage (localhost) doesn't showup [closed]

Assuming, I've successfully installed Apache tomcat in RHEL 7 followed almost similar instructions in here, except that I've tomcat8 user, assigned permissions and generating a keytool as $JAVA_HOME/...
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1answer
33 views

Apache status connecting to wrong host [closed]

I'm trying to get the status of my Apache server with the ./apachectl status command. I get the following in stdout: Looking up 127.0.0.1:30240 Making HTTP connection to 127.0.0.1:30240 Alert!: ...
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1answer
1k views

Is not a valid path to the kernel headers?

Host - Windows 10 VMware - 11.1.2 Guest - CentOS 7 I installed kernel-headers using yum since during the installation of vmware-tools I get a message "Searching for a valid kernel header path... ...
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0answers
46 views

TIMEZONE set for specific country but we get UTC Time - how it can be?

I have Linux red-hat 6.6 version This machine was set for Israel time zone as the following # more /etc/sysconfig/clock ZONE="Israel" ls -ltr /etc/localtime lrwxrwxrwx 1 root root 23 Jul ...
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0answers
29 views

How to test new user login?

I've done some searching on Google and SE and have not found what I need using my search terms. Accessing RHEL 5.10 (Tikanga) from Windows 7. I am making a new user and need to make sure their ...
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4answers
9k views

How to access the Local FTP YUM repo from client Machine

I setup the FTP server on Machine A 192.168.1.105 and created the YUM repo. And placed following contents in it. #vi rhel-localftp.repo [rhel-localftp.rep] name=bla bla bla baseurl=file:///var/ftp/...
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1answer
27 views

What are the most restrictive external firewall / DNS listening port settings I can have for my DNS server (internal clients only)

This question relates specifically to hardening the configuration of DNS, firewalls and at the limit, ntp. (not proxys, http access,vpn's or other services). This is about the externally-facing side ...
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2answers
19k views

/dev/tcp listen instead of nc listen

With a netcat listener like: nc -l <port> < ~/.bashrc I can grab my .bashrc on a new machine (doesn't have nc or LDAP) with: cat < /dev/tcp/<ip>/<port> > ~/.bashrc My ...
1
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0answers
688 views

receiving error message while trying to register for subscription for rhel6

I am trying to subscribe to redhat from the terminal. I have registered an account at https://access.redhat.com/labs/registrationassistant/ . So I am using those credentials to register my ...
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0answers
29 views

Cannot add group on RHEL desktop

Question: why does the groupadd fail here? Is it related to SELinux or maybe a bug? I found the mv /etc/group+ /etc/group problem via strace groupadd.. [root@notebook ~]# groupadd testing groupadd:...
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2answers
25 views

grub in centOS, I can't start my Server

I was changing my HD with a (Windows Program for Partitions), now I can't to start the server, CentOS. I remember this: /etc/grub.conf & default=1 timeout=10 splashimage=(hd0,4)/grub/splash....
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2answers
70 views

How to use exit status in crontab

I add the following script line to the red-hat crontab, script should run on Saturday in 5:00 in the morning. In order to run the script /var/scripts/PLW.pl every Saturday at 05:00 morning. I want to ...
0
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1answer
490 views

Unable to install mod_pagespeed on Apache 2.4

I have installed Apache 2.4 on the Red Hat Enterprise Linux Server release 6.7 (Santiago) by following these steps Step1 cd /etc/yum.repos.d/ wget http://repos.fedorapeople.org/repos/jkaluza/httpd24/...