Red Hat Enterprise Linux version 6 is a Linux distribution sold by Red Hat, Inc. for the enterprise market. It is used for both servers and desktops. Although the binaries are not freely available, the sources are, and so there are numerous projects which provide compatible rebuilds of RHEL, such as ...

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290 views

Choosing bonding mode between RHEL server and two separate switches

I have one RHEL 6 server with two NIC ports (each Port is connected to different switch). I need to create bonded interface from those two physical ports. Which bonding mode should I use? I don't ...
1
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2answers
515 views

Home directories created with wrong Selinux context

[root@tst-01 home]# ls -Z drwxr-xr-x. ujjain users system_u:object_r:home_root_t:s0 ujjain drwxr-xr-x. johndoe users system_u:object_r:home_root_t:s0 johndoe The selinux ...
0
votes
1answer
79 views

How can I make the root logical volume smaller without problems and downtime?

[root@tst-01 puppet]# lvs LV VG Attr LSize Origin Snap% Move Log Copy% Convert lvhome vg00 -wi-ao 2.00g lvroot vg00 -wi-ao 38.75g lvswap vg00 -wi-ao 4.00g lvtmp vg00 -wi-ao ...
4
votes
1answer
103 views

How to prevent installation of incompatible rpm packages

I have two rpm packages wich should not get installed together. After googling around i assume there is no RequiresNot tag or something similar to specify incompatible packages in a specfile. What ...
-4
votes
1answer
196 views

Downgrade Openssh on RHEL6 [closed]

Is it ok to downgrade openssh from 5.3 to 4.3 in rhel6 as we are facing compatibility issue between openssh 3.1 client and openssh 5.3 server(SCP file transfer hangs). Please we cannot upgrade ...
2
votes
4answers
980 views

How to make RHEL have persistent local hdd name?

I have 2 identical Dell R720 servers running identical Oracle Enterprise Linux(RHEL)6.4. Both servers (supposedly) configured in exactly the same way. However, one of the servers is behaving ...
1
vote
1answer
163 views

Solaris SMF to Upstart on RHEL6

I am planning a migration from Solaris/x86 to RHEL6. Part of this migration will be migrating services from SMF to the RHEL6 equivalent, which appears to be upstart. While init.d scripts still seem to ...
0
votes
1answer
101 views

ip6tables TPROXY not working

I have a problem, I need to have to run a java program on a port < 1024. authbind and jsvc are no alternatives, it is simply decided not to use. But using ip6tables -t mangle -A PREROUTING -p ...
4
votes
3answers
2k views

Understanding RedHat's recommended tuned profiles

We are going to roll out tuned (and numad) on ~1000 servers, the majority of them being VMware servers either on NetApp or 3Par storage. According to RedHats documentation we should choose the ...
0
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1answer
71 views

Adding an interface-specific gateway

Desired result: Assign an interface-specific gateway in the circumstance that are also receiving general DHCP-supplied gateway settings. Current situation: Interface-specific gateway setting is not ...
1
vote
4answers
2k views

UNEXPECTED INCONSITENCY run fsck manually redhat

I erroneously restarted my server before completing a filesystem resize. Here's the command that ran successfully before restarting: lvresize -L -400GB /dev/mapper/vg_yavin-lv_home At boot, I get ...
1
vote
2answers
132 views

Reallocate Storage in Red Hat 6

Is it possible to (safely) reallocate storage space in /home to the root filesystem? $ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_yavin-lv_root 50G 35G ...
0
votes
2answers
167 views

rm: cannot lstat `cd1/Linux/nic/UBUNTU11_64/âââ\033\nwâ·.αÃo': Input/output error

am trying to delete folder in My rhel machine , but is giving error like rm: cannot lstat `cd1/Linux/nic/UBUNTU11_64/âââ\033\nwâ·.αÃo': Input/output error folder permissions are rwx to all ...
7
votes
3answers
4k views

RHEL 6.4: Mode 1 channel bonding not failing over

I'm running RHEL 6.4, kernel-2.6.32-358.el6.i686, on an HP ML 350 G5 with two onboard Broadcom NetXtreme II BCM5708 1000Base-T NICs. My goal is to channel bond the two interfaces into a mode=1 ...
0
votes
2answers
284 views

RHEL6: Specify Rescue Method from initrd append options

I have a PXE menu configuration that I'm working on. It incorporates the RHEL6 Rescue option in order to perform repairs after booting from the network. The Rescue boot environment asks three basic ...
-5
votes
1answer
262 views

What are equivalent parameters of adduser debian command in RHEL6? [closed]

None of this options doesn't exist in RHEL6. /usr/sbin/adduser --disabled-login --gecos 'GitLab' git What is equivalent parameters for disabling account (no locking, it's different) and adding ...
2
votes
4answers
802 views

Server freezes while installing Redhat Enterprise Linux Server 6

We've tried both the first options Install or upgrade an existing system Install system with basic video driver When trying option #1, it gets to a screen that has a solid cursor about halfway ...
2
votes
1answer
387 views

Unable to set proxy to “subscription-manager repos --list” -command

I have RHEL6 system that is registered to rhn via subscription-manager. I'am trying to install package java-1.6.0-sun-devel which is in rhel-6-server-optional-rpms repository, According to this Redhat ...
2
votes
1answer
163 views

varnishncsa does not show any output

I have varnsih setup on my RHEL6.x. While the varnish, varnishlog and varnishstats show proper data varnisncsa does not log any data even when run without any options defined. I have lsofed all the ...
0
votes
1answer
3k views

What is the difference between init 6 and reboot on Red Hat / RHEL / CentOS?

In Linux, the init 6 command gracefully reboots the system running all the K* shutdown scripts first, before rebooting. The reboot command does a very quick reboot. It doesn’t execute any ...
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2answers
96 views

How can you prompt for the EULA in Kickstart?

I am trying to modify a Kickstart script so that it does not auto-accept the EULA (which it seems to skip right now.)
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votes
3answers
162 views

Preferred way to add a new name server to a host in Red Hat or CentOS

I am managing a particular host machine, and I would like to locally add a new name server for it to query (i.e. not changing its name server settings via the dhcp server). It seems that there are ...
0
votes
1answer
39 views

How is it determined which name server will be used for a particular interface?

According to the documentation for interface configuration files in RHEL 6, an interface can specify which name server it would like to use by including the directive DNS{1,2}=address . The ...
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0answers
64 views

strange behavior start / stop scripts apache

I noticed a strange behavior of Apache on my own Amazon installation of a RHEL 6.4. After launching a Red Hat Enterprise Linux 6.4 AMI I installed the http package with yum, configured apache, and ...
1
vote
1answer
132 views

Apache forces Cache-Control: private automatically for HTTPS requests

I'm trying to get browsers to cache assets over HTTPS. I am using MD5 fingerprinting method to allow long-term caching and I have this part working OK. What doesn't work is setting the Cache-Control ...
0
votes
0answers
210 views

Setting up computational cluster using infiniband fails

My task: I need to assemble computational cluster, consists of two nodes using infiniband technology. When I try to start mpirun ... for two nodes, the process hangs. If i try to use flag ...
-1
votes
1answer
1k views

NTP can't synchronise or find a suitable server

The problem I'm trying to solve is that NTP won't synchronize: $ sudo ntpstat unsynchronised time server re-starting polling server every 64 s Edit: Here's some ntpq output: $ sudo ntpq -c ...
1
vote
2answers
563 views

Why is raid-check using so little io bandwidth?

Just out of curiosity, we have a RHEL server running software RAID. There's a cronjob which kicks off a raid data check every so often to check the consistency of the array. From my understanding, the ...
0
votes
2answers
166 views

rpmbuild missing from rhel 6.3

I have a fresh new RHEL 6.3. I cannot access internet and because of this I cannot use yum. I would like to use the RPMs I get from the Red Hat package (2 discs full or RPMS). These are all files ...
0
votes
1answer
204 views

Linux/RHEL Server Down with “xinetd” Alerts?

Suddenly one of my RHEL 6 Server [VM] (serving Apache on it also) went down and when i rebooted it, i saw several of following /var/log/messages as latest before it went down: May 4 08:16:37 ...
1
vote
2answers
2k views

Human readable format for http headers with tcpdump

I would like to view the HTTP headers sent from Apache (listening on port 80) to Tomcat (on port 4080) in a Linux machine. According to Wikipedia, Header fields are colon-separated name-value ...
0
votes
1answer
105 views

Which partition utility's output is correct?

I have Fusion ioDrive2 785GB (731.088 GiB) SSD card. The server is running Oracle Enterprise Linux 6.4 (RHEL6.4 compatible). It is low-level formatted as such: "80% factory capacity" Format ...
0
votes
1answer
929 views

How to enable eth0 on a cloned RHEL VM running in Windows Server 2012?

Due to a critical personnel shortage, I (not a willing sysadmin!) have been given a RHEL 6.1 VM image with the request that it be migrated to a server running Windows Server 2012 with HyperV. The ...
0
votes
1answer
515 views

Error: partition length of 6442450944 sectors exceeds the loop-partition-table-imposed maximum of 4294967295

I'm trying to create a partition on a RHEL 6.3 machine, but parted is giving me the following error: $ sudo parted /dev/vdb mkpart logical 1 Error: partition length of 6442450944 sectors exceeds the ...
0
votes
2answers
331 views

iDRAC7 - discover Host Name, OS Name, OS Version when running RHEL 6?

Just picked up a Dell PowerEdge R720 which comes with an iDRAC 7, and am wondering how to get the host operating system (Red Hat 6) to automatically report the hostname, os name, and os version to the ...
1
vote
3answers
1k views

YUM install tigervnc-server fails on RHEL 6.1

Installing tigervnc-server fails on RHEL 6.1 with the message below. One person recommended installing all of the xorg-x11 packages, but that gives the same message (below too). Do I need to add new ...
1
vote
0answers
581 views

Mount updates /proc/mount but not /etc/mtab, making partition not show up in df, mount listing

I'm on RHEL 6. I created some partitions using parted, formatted them using mke2fs, and mounted them using mount. I also added them to /etc/fstab. However, they do not show up in the mount or df ...
1
vote
1answer
124 views

Apache 2.2 Ldap Authantication error 500 - AuthLDAPURL

I have an Apache server on RHEL 6 that uses our active directory for authentication, We added a new "LocationMatch" AuthLDAPURL ...
0
votes
1answer
414 views

partprobe will not work..i have tried everything

I am days before the RHCSA exam and i have noticed i still haven't been able to successfully run partprobe successfully after months on testing and testing and testing..not a single time I have tried ...
7
votes
1answer
432 views

How can I use SELinux to confine PHP scripts?

I want to compartmentalize different PHP applications on my SL6.4 (RHEL 6.4 rebuild) web server so that they cannot access each others' data. It seems that SELinux might be able to do this, but I am ...
-1
votes
1answer
2k views

How to install latest nodejs package on Red Hat Enterprise Linux 6?

Would this sequence of commands work for RHEL? apt-get install python g++ make mkdir ~/nodejs && cd $_ wget -N http://nodejs.org/dist/node-latest.tar.gz tar xzvf node-latest.tar.gz && ...
0
votes
2answers
74 views

How do I set the Red Hat hostname at boot via a script?

In our computing environment we have a number of virtual machines running Red Hat Enterprise Liunx 6 that need to set their hostname programmaticly when they boot for the first time. Currently they ...
1
vote
1answer
74 views

How to centrally manage routing info?

I'm trying to build a VPN setup, where there are several Road-Warriors (various OSes) want to communicate to internal network behind a VPN gateway. The key facts are these: Internal network is ...
0
votes
1answer
1k views

Errors using new rsyslog template syntax on RHEL6

I'm migrating our rsyslog config from an old server to a new one, and thought I'd use the opportunity to tidy up our config. The old config used "legacy" template definitions, and the rsyslog doc on ...
1
vote
0answers
108 views

Xvfb on RHEL6 - can't find the package

This looks like an already discussed subject, but, I can't find any solution for it, so, I gonna try it again. I look some questions and try all the given solutions, with no success. I tried to ...
2
votes
1answer
2k views

What does this RPC error message mean?

I have OS RHNL release 6.2 and use the NFS service (nfs-utils-1.2.3) to connect to NFS server, And found a lot of messages in a file /var/log/messages: Apr 1 11:08:35 XXX rpc.idmapd[3010]: ...
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0answers
140 views

File descriptor limit RHEL (Scientific Linux) with PHP Server

I want to serve with a PHP more than 1024 Clients! I dont have a apache! When I run the script I come in to a issue once I have more than 1023 Clients connected! I have exactly this issue: ...
0
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0answers
227 views

RHEL6 Apache mod_fcgid PHP localhost

I have disabled mod_php on a RHEL6 apache server and installed mod_fcgid. PHP test scripts (info.php) work on the localhost. I know this since info.php returns the apache api as Server ...
0
votes
1answer
98 views

Why doesn't build of net-snmp-5.7.2 provide /etc/rc.d/init.d/snmptrapd?

I am packaging an RPM for RHEL6, built from net-snmp-5.7.2.tar.gz. I see that the file /etc/rc.d/init.d/snmpd gets created and packaged but I do not see the init file for /etc/rc.d/init.d/snmptrapd. ...
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votes
2answers
482 views

RHEL 6.0 enterprise intallation probelm on hp gen8 server [closed]

i am unable to install rhel 6 enterprise edition on hp dl380p gen8 server. with a p420i raid controller with 512 mb cache. whenever i boot from my media.. after asking for language and keyboard type.. ...