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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22 views

Can traditional partition and LVM coexist? (RHEL6) [duplicate]

There are 2 disks which are configured as RAID1. I want to set system area (/boot, /, swap) as normal partitions. And I think those areas for Applications and Data should be LVM because they might be ...
4
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2answers
26 views

Anaconda kickstart and rootpw option

I've tried a few different methods of generating an encrypted password on SL 6.5, but nothing seems to work for me. I'm not finding any errors anywhere in the various /var/log/anaconda* files, but I ...
1
vote
1answer
19 views

Deploying Ruby Applications In Air Gap (No Internet Access) Network

The current network setup at my job has made it difficult to deploy Ruby web applications. We are running our production RHEL servers in an air gap network with no access to the public internet. My ...
5
votes
1answer
77 views

RHEL6 Keeping 1 old kernel and security

I have my RHEL 5&6 servers set to keep 1 old kernel after updates, I do this in case I need to recover the system for any number of reasons. My question is related to security of the system when ...
1
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0answers
27 views

kickstart unattended install of OEL 6.5 always asks to check media

My configuration is as follows: Hyper-V 2012 R2 Host Oracle Enterprise Linux 6.5 VM Guest being installed from an iso attached to the VM. I created a kickstart file that I have on a NFS share and ...
4
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2answers
155 views

packets sent on virtual IP don't hit iptables rule

I have a virtual interface eth1:3 with IP address 222.192.124.3, I have set up an iptables rule to log packets coming on that interface using the interface's IP (I know iptables doesn't care about ...
1
vote
2answers
27 views

RHEL 6, Mounting Network Storage at Boot

I have multiple network folders that need to be accessed by RHEL machine for a server program. The issue is everytime the server gets rebooted all the mounts get erased. How can I make it so the ...
1
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0answers
24 views

Unable to access disks in rhel 6.5

I work for a biology lab. We recently bought a new microscope that produces an enormous amount of data - it is simply not feasible to store it on a desktop. So, we bought a storage server - the idea ...
1
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0answers
26 views

VSFTPD won't allow upload to mounted (Shared) Directory. RHEL6

I'm trying to configure VSFTPD, for each user to have a PublicFTP directory, since all users are chrooted, but they still need a central FTP dir. I've created this directory in each of the local ...
0
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1answer
17 views

Linux Hard link permissions show r/w/x for owner/user/group but user unable to execute

I have a hard link to a service script in /etc/init.d/ that points to a shell script (bash). The permissions show owner, user and group permissions to be rwx for everyone. However, when I run the ...
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0answers
36 views

pam_tally2 being called before Password entry

Based on the suggestion given in: Account Lockout with pam_tally2 in RHEL6 I have come to a working configuration, wherein account is getting locked out after 3 failed logins. Catch is that ...
4
votes
1answer
66 views

How can I force sudo to accept a user's AD password on RHEL6

In our environment we do not join Linux boxes to the Microsoft Domain. We do however setup Kerberos. This allows us to log into the boxes using our AD credentials as long as there is a local account ...
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2answers
33 views

rbash to limit user to its home directory closes sftp connection

Server: Red Hat Enterprise Linux Server release 6.5 (Santiago) Using openssh-server to allow sftp connexions. I'm trying to limit users to their own personal home directory. So i modified ...
2
votes
2answers
118 views

Linux: ps/htop show processes running for hundreds or thousands of days though host just rebooted

RHEL 6.3 We just rebooted last night and I have many many processes showing they have been running FOREVER. Examples: root 11 2 99 Feb23 ? 212429-04:31:07 [kworker/0:1] root ...
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votes
1answer
30 views

Identifying RHEL disk other than by UUID in /etc/fstab for Disaster Recovery from another site

For our disaster recovery setup there is a set of disk which are replicated from our production site to the disaster site. On the production site the RHEL servers have /boot filesystem setup on disks ...
0
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0answers
105 views

dmar: DRHD: handling fault status reg Errors in /var/log/messages

We have One HP Enclosure Gen8 and this server on Bay11 is giving alot of these messages and one second it drops connections and other second it start working. Rest of servers in this enclosure are ...
2
votes
0answers
17 views

Specialized access control for directories in RedHat 6?

I have a requirement where I want to set permissions for a directory so that the directory owner (user/group) would be able to create files inside the directory and modify them, but won't be able to ...
1
vote
1answer
21 views

Growing a raid 1 with mdadm

I have a RHEL 6.5 box in which I have recently added two partitions to the a raid 1. It took the the disks without any incidents but I am not able to resize the raid itself. The output of cat ...
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0answers
46 views

cifs mount not working using fstab on RHEL6

I had a line in my fstab file that until this morning allowed me to read and write to a windows share (dummy IP address is shown below) //111.111.1.111/ecc /mnt/nas2 cifs ...
0
votes
0answers
30 views

uploadprogress.so is installed, but does not appear in phpinfo

I'm on RHEL6 (Red Hat Enterprise Linux Server release 6.5 (Santiago)), but I've upgraded PHP to version 5.4.16. I've downloaded and installed the PECL uploadprogress library version 1.0.3.1 that is ...
1
vote
1answer
45 views

Breaking off /tmp using LVM

I've recently been put in charge of a RHEL6 server running our NMS. I don't know much about Linux filesystem administration. What I'm needing to do is create a partition for /tmp, instead of having it ...
1
vote
3answers
156 views

php-snmp php-devel php-mbstring Dependency Issues RHEL 6

I apologize if this is answered, I may just not know what exactly to search for. I am attempting to install Cacti on RHEL6 and have hit a wall trying to install these three package: php-snmp ...
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0answers
54 views

Install libxml2.8 on RHEL 6

I want to install the software TinyOWS on a RHEL 6 server. I followed the instructions: $ wget http://download.osgeo.org/mapserver/tinyows-1.1.0.tar.bz2 $ tar xvjf tinyows-1.1.0.tar.bz2 $ cd ...
2
votes
2answers
132 views

Hyper-V 'standalone' (on baremetal) with RHEL/CentOS 6.x guest VM

My exposure to virtualization has been limited to Virtualbox &VMware-player on Desktops, and to VMWare ESXi &KVM on Linux server, and exclusively with Linux guests (RHEL/CentOS). So please ...
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votes
1answer
44 views

migrate to centos vs. add centos repository [closed]

I have installed Redhat Enterprise Linux 6.2, and I don't want to buy its subscription, I want to use the centos's repository. I found an article that teach me how to migrate to centos 6 from rhel 6, ...
1
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0answers
59 views

Foreman-Installer change certificate

Looking to install Foreman for a puppet deployment in my environment. I ran foreman-installer with defaults at first and didn't care for the SSL certificates and URLs being server01.example.com I ...
2
votes
1answer
82 views

RHEL SELinux context differs between matchpathcon and restorecon

I am using RHEL 6.3 and I experiment a strange behavior with matchpathcon and restorecon SELinux commands. For a specific file, I have defined a context with semanage fcontext. Then, matchpathcon ...
1
vote
1answer
113 views

RHEL6 Upstart: Flow of Events During Reboot

I have a situation where a RHEL 6.4 server is sending TERM and KILL signals too quickly, before applications and databases have had a chance to gracefully stop. It seems that Upstart is handing ...
2
votes
2answers
239 views

Nagios NRPE: Command “my_command” not defined

I have installed Nagios® Core™ 3.5.1 and NRPE v2.14 on my client which running RHEL 6.3 I have this error message on my Nagios NRPE: Command 'check_mysql_connections' not defined On my nrpe.cfg I ...
2
votes
1answer
180 views

How to configure the bridge over bonding in RHEL 6.4 Server?

Has installed a system (rhel-server-6.4-x86_64-dvd.iso). KVM over which set. The host machine and the guest-machine assigned its own IP-address, configured for this bridge br0. Everything works. Now ...
1
vote
2answers
87 views

How to configure ssh tunneling with Putty between two RHEL servers?

I'm trying to allow ssh access from a remote RHEL server to a local RHEL box via Win/Putty gateway. Basically, I'd like to be able to do 'ssh localhost -p 512' on a remote server so that it would ...
3
votes
2answers
82 views

Managing Python versions with environment-modules

I'm trying to configure a RHEL6 server to allow multiple users to run multiple versions of Python, multiple versions of various python modules, and multiple versions of various other programs (e.g. ...
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votes
1answer
47 views

Redirect all incoming traffic

I have a RHEL6.4 httpd VirtualHost that I want to use to forward inbound traffic like so: Any incorrect host names in requests will redirected correctly to my SERVER_NAME AND Any non-port-443 ...
1
vote
5answers
2k views

How do I install the main repositories for RHEL6

We've setup RHEL6 on a new server. As far as we can tell, our subscription is all setup properly. However, when I run yum repolist, it doesn't show any repositories. /etc/yum.repos.d/redhat.repo is ...
3
votes
1answer
87 views

Can't make SELinux context types permanent with semanage

I created a new folder at /modevasive to hold my mod_evasive scripts and for the Log Directory. I'm trying to change the context type to httpd_sys_content_t so Apache can write to the folder. I did ...
6
votes
1answer
1k views

“power limit notification” clobbering on 12G Dell servers with RHEL6

Server: Poweredge r620 OS: RHEL 6.4 Kernel: 2.6.32-358.18.1.el6.x86_64 I'm experiencing application alarms in my production environment. Critical CPU hungry processes are being starved of resources ...
0
votes
1answer
26 views

cron to anacron migration process

I have a script that I want to run nightly on my lab's RHEL 5 and 6 workstations, so I'm deploying the script to each system's /etc/cron.daily/ directory and making it executable there. But some ...
1
vote
0answers
41 views

How can I get auditd on RHEL6 to dispatch forwarded messages?

Using RHEL6, I currently have audispd setup to send logs to a remote server. The remote server successfully receives the messages, and writes them to the remote audit log. My problem is, I can't seem ...
3
votes
1answer
132 views

How to detect if mount point exists from init.d script?

After a reboot, I'm executing an application from a mounted network share (autofs) using an init.d script. The script starts by waiting 30 seconds before attempting to execute the command, in order to ...
2
votes
3answers
113 views

Why is RAM usage so high on an idle server? [duplicate]

I'm investigating a server used for scientific data analysis. It's running RHEL 6.4 It has almost 200GB of RAM. It's been running very slowly for users via SSH, and after some poking around I quickly ...
1
vote
1answer
66 views

RHEL Apache: 403 Forbidden on VirtualHost

My files are all owned by apache:apache. All directories have 770 permissions and files have 660 permissions. My original virtualhost seems to be fine but the second one is getting 403 errors on all ...
3
votes
2answers
50 views

Later versions of RPMs not available through custom yum repo

I've created a custom repository following this guide. Files are being served via http (nginx). I've cd'd into the directory to create the metadata with createrepo .. I can install a package through ...
1
vote
1answer
515 views

What are the disadvantages of disabling tinker panic 0 in NTP?

We sometimes have the problem that new servers have the wrong time in the bios, so there time can be off by a month. When you suspend a VM in VMware and then unsuspend it, the time will be off too. ...
6
votes
3answers
103 views

How to make NTP work despite a high offset?

Recently I have kickstarted some servers that had their time off by a month in the bios. The time in the bios said it was a random time/date in May, while it was June. This caused NTP not to work, ...
4
votes
2answers
349 views

Dangers to giving Apache user a shell

tl;dr - What are the dangers of giving Apache a shell in /etc/passwd? I'm working on getting mod_evasive set up with Apache to fight DOS attempts. I use the DOSSystemCommand to run a script that ...
2
votes
1answer
143 views

Is there an equivalent to Debian's cli/php.ini on Redhat?

How do you configure the command line version of PHP to have different settings on a Redhat system? On Debian based systems, php has a separate command-line version config file: /etc/php5/cli. On ...
0
votes
0answers
64 views

Why does git remote repo only work as root?

I followed this description setting up a git remote git repo. This worked pretty well so far, but only when I use root@mygitserver.com:/gituserhomedir/someproject.git. When I switch to user git@... ...
1
vote
2answers
69 views

How do I allow my server to ftp to itself?

I'm on RHEL6 and I'm trying to do an auto update on wordpress but the ftp and sftp connections fail. I suspect it's at least testing the connection from within the server which is not allowed by my ...
2
votes
1answer
78 views

How to make Puppet fix SELinux types for home directories?

We are using pam_mkhomedir.so to automatically create the home directories of users logging in with SSH. There is a bug in pam_mkhomedir that sets the SELinux contexts to home_root_t instead of ...
0
votes
0answers
27 views

rubygems unavailable after optional rpms enabled

I'm using RHEL6. This morning I had a machine registered with RHN, and now I'm moving forward with a Puppet installation. I've run yum-config-manager --enable rhel-6-server-optional-rpms however, ...