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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1answer
24 views

redhat cluster failover not working (corosync [TOTEM ] Retransmit List)

I'm using following: [root@kpdbm01 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.5 (Santiago) [root@kpdbm01 ~]# uname -a Linux kpdbm01 2.6.32-431.20.3.el6.x86_64 #1 SMP Fri ...
0
votes
1answer
14 views

keepalived failover virtual ip parameters

I have two servers (A-master and B-backup) with one virtual ip. I need to assign the virtual ip to server B in case server A fails. For this I'm trying to configure keepalived. server A virtual ip ...
0
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0answers
8 views

Puppet master receiving a YAML error after upgrade to 2.7.25-2

Our puppetmaster server was upgraded to the latest available on RHEL6 (puppet-2.7.25-2.el6.noarch). We are now receiving errors such as this on the master: Aug 26 11:36:59 master1 ...
-1
votes
0answers
15 views

Can't start puma socket in /var/run [duplicate]

I can't start puma via socket in /var/run--when I try I get a permission error. I'm running in /tmp now, but is that ok?? I get the error: Permission denied - connect(2) for "/var/run/nvhbase.sock" ...
0
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0answers
18 views

RHEL6: bonding NICs with DHCP reservation problems

I am using a 4 NIC bond with Bonding Mode: transmit load balancing and a port channel is configured on the switch. I have a DHCP reservation for the IP address being used for the bond. I configured ...
0
votes
0answers
19 views

Nginx/puma rhel unix socket permission error?

When I try to start my puma server, I get the error: /.rvm/gems/ruby-2.1.1/gems/puma-2.9.0/lib/puma/binder.rb:275:in `initialize': Permission denied - connect(2) for "/var/run/nvhbase.sock" ...
2
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0answers
30 views

Why “scope link” ipv6 address can be pinged via interfaces which they are not active on

[root@2_01 ~]# /sbin/ip -6 addr show pubeth0 inet6 2001:1::6/64 scope global inet6 2001:1::1/64 scope global inet6 fe80::20c:29ff:fe69:f9e8/64 scope link [root@v2_01 ~]# /sbin/ip -6 addr show ...
-1
votes
2answers
47 views

RHEL 6.5 and LDAP

I am trying to connect our Active directory server to brand new RHEL 6.5 server. I want to authenticate users using AD credentials, but I want to restrict that only certain users can login, I don't ...
0
votes
1answer
50 views

RHEL Java Application returns “No space left on device” but only 3% used [duplicate]

My Java Application returns following Exception when saving a new file in /opt/wso2 on a CentOS 6.4: Caused by java.io.FileNotFoundException: ... (No space left on device) Caused by: ...
0
votes
1answer
24 views

How can I start X server ons boot?

In most case I login to the server as a root and start the X server manually by calling the startx function. After the I can use X11 forwarding. However I would like to know how can I start X11 as a ...
-1
votes
2answers
72 views

How to install SVN client version 1.8 on CentOS/RHEL 6?

I'm trying to install the SVN client version 1.8 on CentOS 6. I'm using the description on http://tecadmin.net/install-subversion-1-8-on-centos-rhel/ All activities are running successful without ...
1
vote
3answers
68 views

Unable to install X11 server on RHEL6

I am tring to install X11 server on a RHEL6 server yum groupinstall "X Window System" "Desktop" "Fonts" but I am getting the following error: Error Downloading Packages: ...
0
votes
1answer
29 views

munin requires perl(RRDs)

I'm in RHEL6.3 and I'm installing munin from epel http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm I already solved all dependencies except this one : Error: Package: ...
-2
votes
2answers
41 views

How can I scan a IP & Port range to get information about all SSL certificates in use

From a Linux system, for a given IP range I need to check each open port to see if an SSL certificate is in use. For example, I would like to check ports 1 - 9999 on the address range ...
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votes
3answers
80 views

Enable Passwordless Sudo with Arguments

I am trying to enable passwordless sudo for updating yum on a RHEL box. I have the following line in sudo visudo. myuser ALL=(ALL) NOPASSWD: /usr/bin/yum update After doing this under myuser I am ...
0
votes
0answers
73 views

squid authentication error kerberos - windows active directory

I use squid on RHEL6 and I want that authentication is via AD windows 2008, I already joined the server to the windows domain and all users is already seen by wbinfo -u wbinfo -g but wbmin -t show ...
1
vote
1answer
37 views

Nagios CHECK_NRPE: Error receiving data from daemon. RHEL 6

So I'm trying to set up a Nagios check_load service on a Red Hat server. I followed the documentation from Red Hat to install the NRPE client: ...
0
votes
0answers
20 views

What is the relationship between iproute2 and distro config files?

For various ip manipulation activities, what is the difference/relationship between iproute2 and modifying the distro's config files? For instance, some sources recommend ip address del for deleting ...
0
votes
0answers
30 views

NFS clients seeing stale state

I have a server exporting partition as: /data/foo *.example.com(rw,sync,all_squash,anonuid=502,anongid=502,subtree_check) ... and client mounting it as: myhost:/data/foo /home/myuser/foo ...
0
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0answers
76 views

RHEL/Centos 6 Cluster multi-site configuration with Pacemaker and split brain situation

I would configure a 4-nodes cluster using RHEL 6.5 and Pacemaker as reported in the official documentation ...
0
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0answers
26 views

How do I configure multiple gateways using system-config-network-cmd?

I have been working on something where we need to configure the interfaces of a Red Hat Enterprise Linux system using system-config-network-cmd (so that my software does not need to gain vile ...
1
vote
1answer
42 views

SELinux for RHEL not persistant after reboot

So in the Red Hat exam they want you to use SELinux. If for example you install vsftp, then do setsebool -P ftp_home_dir=1 or setsebool -P ftp_home_dir on to allow the users on the server to access ...
3
votes
1answer
37 views

RHEL6 httpd Root CA configuration

I'm setting up SSL on a RHEL6 box and I'm having problems finding information about configuring the Root CAs. I've got four files: cert.crt - My SSL certificate my_key.key - The key used to ...
0
votes
1answer
45 views

Anonymous User Can't Delete file from ftp

I've created a new directory in /var/ftp with the name uploads the owner and group of this directory is ftp the permissions are set to 777. Content of my vsftpd.conf file anonymous_enable=YES ...
1
vote
0answers
98 views

Can't seem to install pdo-mysql extension on RHEL6 server

I'll try to be clear, I don't have a lot of server experience, but I'll tell you what I know: I'm trying to install Magento on a site, but I kept getting an error, after looking at the error logs, ...
0
votes
0answers
46 views

Pure-ftpd 0 bytes Upload

hopefully someone will be able to shed some light on this one. We currently have a Pure-ftpd service installed on a RHEL6.5 server accepting connection from a client who drops files ever X hours. ...
0
votes
0answers
132 views

rhel 6.4 pip with proxy error : name or service not known

the pip command pip search statsd --proxy=http://anadi.misra:XXXXXXXXX@192.168.200.77:8080 Now my password contains an @ too so I give the encoded form in password; i.e. some@pass is supplied as ...
0
votes
0answers
35 views

Red Hat Network API connection

I'm creating a perl script that connects to the RHN, however I seem to be struggling. The code I have is this: #!/usr/bin/perl use Frontier::Client; my $HOST = 'xmlrpc.rhn.redhat.com'; my $client ...
1
vote
2answers
81 views

Redhat resize Partition

First off, I'm an absolute newbie in Linux, but I've been tasked to automate the process of resizing a partition on RHEL 6.5. The server resides as a virtual machine in VMWare, and we are trying to ...
0
votes
2answers
47 views

What is the alternate command for “kudzu” in RHEL6?

I used "kudzu" command in RHEL5 for scanning new devices connected to the server. But i am getting "command not found" error when I try the same in RHEL6. What is the alternative command for scanning ...
1
vote
1answer
238 views

Why is Linux kdump not writing to /var/crash?

It's happened again! I have 4 servers which are crashing periodically, and there is no information printed to the system logs or the serial console. In addition, the Linux kdump service isn't writing ...
0
votes
1answer
71 views

Telnet Postfix on 25 connect but doesn't return any banner

I have configured postfix on RHEL 6.4 and I can connect to postfix on 25 port but no banners return and ehlo doesn't work either. I have uncommented the smtpd_banner line and here it how looks. ...
3
votes
2answers
129 views

What is the difference between “su --command” and “su --session-command”?

Running # su - oliver --command bash gives a shell but also prints the warning bash: no job control in this shell, and indeed Ctrl+Z and fg/bg don't work in that shell. Running # su - oliver ...
0
votes
1answer
151 views

Permissions denied on apache rewrite module virtual host configuration

All of a sudden I keep getting "Permissions denied" on apache 2 virtualhost once we moved it to its own conf file. I have tried all the suggestions I have found here but none work. Please can someone ...
0
votes
1answer
57 views

Linux/RHEL6: Sending output to console and returning to a prompt

I'm disabling Ctrl-Alt-Del on a RHEL6 server and enabling Alt-SysRq. In the /etc/init/control-alt-delete.conf file I have commented out the exec /sbin/shutdown -r now "Control-Alt-Delete pressed" ...
2
votes
2answers
48 views

Is it possible to persist selinux port statements across reboots?

Currently we need to run something like this every time we start up: /usr/sbin/semanage port -a -t memcache_port_t -p tcp ${special-snowflake-port} It would be great if we could persist this across ...
0
votes
0answers
362 views

SSH hangs after authentication

When logging in to one of my servers over ssh, it just hangs after authentication. This is the output on the client with -v. OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 debug1: Reading ...
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votes
1answer
121 views

RHEL 6.5 / Updating MySQL [closed]

Currently running RHEL 6.5 and need to update to MySQL 5.5.36. Currently it has MySQL 5.1.73 installed. The Software Collections repo has been added. I performed a yum update and it does not show me ...
1
vote
1answer
270 views

Account Lockout with pam_faillock in RHEL6

Previously, I asked about using pam_tally2 under RHEL6. I would like to pose this question and answer to document the recommended use of pam_faillock over pam_tally2 for the same function; What is ...
0
votes
1answer
237 views

Windows 7 with Direct Access and bridging a connection to a local RHEL VM

My company provided laptop is a Windows 7 machine configured to Microsoft Direct Access on the domain controller so that even remotely it will always be available on the domain without having to ...
1
vote
1answer
144 views

RHEL 6 NetworkManager and secondary IP addresses

I've got two hosts running the same release of RHEL (6.4). I've been given eight IP addresses to put onto one NIC in each host. On host A, I manually created ifcfg-eth0, ifcfg-etho:1, ifcfg-etho:2, ...
3
votes
1answer
174 views

RHEL 6 iSCSI LUNs

I have a RHEL system set up as an iSCSI target with 2 luns shared out via one target via the following configuration in /etc/tgt/targets.conf (which I built following the commented out examples in ...
0
votes
1answer
380 views

JBoss EAP 6.2 on RHEL 6: ./bin/init.d/jboss-as-standalone.sh hangs while calling via SSH

I'm using jboss-as-standalone.sh to manage JBoss EAP standalone as a service. I can start/stop the service with "service jboss-as-standalone.sh start/stop" while I'm on a terminal. But I would like ...
0
votes
0answers
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 ...
5
votes
2answers
260 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
40 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 ...
6
votes
1answer
117 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
vote
0answers
349 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
votes
2answers
313 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
47 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 ...