Tagged Questions

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votes
2answers
22 views

Do we need enterprise support for RHEL/CentOS and PostgreSQL

We are an SI currently working on a proposal for an web app solution with tight budget. The 3rd party web app is written in JDK7 is to be deployed to 2 physical server running 3 VM each, one for ...
0
votes
0answers
8 views

Keepalived: NAT VIP for internal network unused?

I'm building a proof-of-concept loadbalancer with CentOS 7 and keepalived. I took Red Hat's load balancer administration guide as a reference and implemented a NAT'ed loadbalancer with 2 nodes which ...
-2
votes
0answers
20 views

how to take a screenhot in redhat linux in run level 3 [on hold]

I'm login to the server(redhat server 6.5) from my computer using Ubuntu terminal(SSH). I need to take a screen-shot of the terminal by running the command in the Redhat server. The Server Running in ...
0
votes
0answers
6 views

BridgedAdapter of VirtualBox on Red Hat 7 stopped working [migrated]

I have a VirtualBox VM (running Red Hat 7) on my Red Hat 7, using a Bridged Adapter for its networking. It stopped working yesterday; the NetworkManager on the VM was unable to obtain a DHCP lease for ...
1
vote
0answers
54 views

Why are --older-than and --younger-than killall options missing in RHEL/CentOS? [migrated]

I've experienced this issue in cleaning up scripts written by developer who were writing for Ubuntu systems, as well as ServerFault questions like this. Is there any reason the -o, -y (--older-than ...
0
votes
0answers
24 views

Execute a script while boot up in RHEL7

One of my server reboots every sunday and monday morning, whenever the server is up I need to do a service restart. Actually I call a script to execute itself (everytime manually). What I want to ...
0
votes
0answers
21 views

(OpenShift) Permission denied when installing my own cartridge from my github repository

I froked MySQL cartridge from official github repo and I added some modifications to support utf8mb4 encoding. this is my cartiridge on github : ...
0
votes
1answer
66 views

Unable to install phpMyAdmin on Redhat 6. Missing librecode.so.0

I'm attempting to install phpmyadmin on a Redhat 6 box using Remi. $ sudo yum install phpmyadmin It fails because of a dependency issue with librecode.so.0. Any advice? Loaded plugins: ...
0
votes
0answers
45 views

Emails stopped being sent by server all of a sudden

I am not really a Linux admin (mostly focused on Windows) but we do have one WebServer that runs Red Hat 6. This server has a web app that runs on ColdFusion 10 (Update 14). I generally just login to ...
1
vote
0answers
12 views

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message I've created new partition(/dev/sda6) and mounted it(on /hulk). Edited /etc/fstab file to give quotas on the ...
1
vote
0answers
23 views

How do I specify what PVs are used for mirroring when adding a mirror in LVM to an existing LV?

I've got an existing VG containing a single LV on a RHEL server that consists of a handful of SAN disks. In an effort to migrate the server to a newer SAN, I'd like to mirror the existing storage to ...
8
votes
4answers
238 views

Implications of using VMware's templating and cloning for provisioning Linux servers instead of PXE

There seems to be speed benefits when using VMware's templates to create new VMs. However, I'm concerned about possible less obvious security and flexibility implications. For e.g.: First boot ...
2
votes
1answer
43 views

How to find out if lvm mirror write is asynchronous or synchronous?

I am using redhat 5.8 with an lvm mirror, created with the following command: lvcreate -m1 --mirrorlog mirrored -n mirrorvol -L 10G myvg /dev/vdb /dev/vdc I would like to know, when I write, do I ...
1
vote
2answers
83 views

Preserve imported CA Certificates through Java upgrades

I have imported internal Certificate Authorities into Java's CA keystore. (Using keytool to import into the "cacerts" store) This works fine and dandy, until I update the Java RPM. At which point ...
0
votes
1answer
57 views

How to configure a RedHat 6 server to always use the gateway?

In one of my datacenters, I need to configure the server to only speak to the gateway even if the other server is in the same network... How can I configure the network card ? I suppose something ...
0
votes
4answers
60 views

Using iptables without root privileges [closed]

When running the following script as user ec2-user, I get the error message iptables v1.4.18: can't initialize iptables table filter: Permission denied (you must be root) Script: #!/bin/sh # ...
0
votes
0answers
16 views

Check Filesystem of Root Volume (Amazon Linux / RHEL)

How can I check the file system (and repair potential errors) of the root EBS volume (/dev/xvda1) of an Amazon AWS T2 instance? The instance runs the latest version of Amazon Linux (RHEL). Is it ...
1
vote
0answers
63 views

CentOS kickstart automated setup with parted / RAID

I'm trying to use parted to partition my entire drives automatically during the CentOS kickstart install, however, I'm getting two issues with my install. I want to kickstart my installs across ...
3
votes
1answer
54 views

How To Monitor And Alert For KVM Hypervisors

We have an environment where we are currently monitoring ~50 VM hosts running esxi. We easily get alerts for hardware events and exceeding performance thresholds via vcenter. We're planning on ...
1
vote
2answers
120 views

Can HP Intelligent Provisioning install RHEL using non-HP media? [closed]

HP DL360p Gen8 has built in Intelligent Provisioning OS intallation. Will it work with stock RHEL bought on http://www.redhat.com or I have to buy Linux only from HP directly ? I don't want to buy ...
0
votes
2answers
37 views

How do I update YUM repositories to get Postgres9.x version?

I need to install some Postgres9.1 libs, but "yum list" only shows 8.4 version. How to "update" yum repo list to get 9.1 version? My Linux version: # cat /etc/redhat-release Red Hat Enterprise ...
-3
votes
1answer
37 views

How does “yum info” work? [closed]

I want to know how the yum info command works. I know yum info will display information about the installed package, but I really want to know which file it reads for that information. Whether it's ...
0
votes
1answer
66 views

NFS lock not working properly

I'm getting the following error on an oracle database. ORA-27086: unable to lock file - already in use It tries to lock a file that resides in an NFS mount. The NFS is on a loopback setup (long ...
0
votes
1answer
134 views

How do I update bash on RHEL5 servers with expired contracts? [duplicate]

I have two servers with expired contracts that are both vulnerable to shellshock. I am in the process of migrating both to new servers with RHEL6 or greater depending when I get this done. That ...
0
votes
1answer
58 views

Spacewalk/Satellite Errata - what is it?

I'm running spacewalk server to get used to it before using Red Hat Satellite on production. There is Errata concept I do not understand and can't find answers anywhere. Have found something similar ...
0
votes
1answer
43 views

Static routing on CentOS through managed switch

I am a newbie in networking and I have a question regarding static routing through managed switch. I have a cluster which are connected to a managed switch. One of the node(call it head node) also ...
0
votes
0answers
28 views

RedHat ntp offset becomes bigger over time

I have a strange issue with a server. It is configured to use 2 servers, just like all the other server (the config is the same for a couple of server and they are all working except this one) and it ...
1
vote
1answer
72 views

Persistent Disk Name in RedHAt Cluster on VMWare Workstation-10.01

I am trying to implement a 2 Node REDHAT HA cluster. The following is my environment. VMWare WorkStation 10.01 Node-1 >> CentOS-6.3 x86_64 Node-2 >> CentOS-6.3 x86_64 Node-3 >> CentOS-6.3 x86_64 [ ...
0
votes
2answers
154 views

bash stuck at 3.2-24.el5 (Redhat)

I'm trying to update bash on our Red Hat Enterprise Linux Server release 5.6 server. But it won't find an update later than "3.2-24.el5". I've check and it is vulnerable for the shellshock ...
-3
votes
0answers
23 views

correct way to buy RHEL for HP DL360p Gen8? [duplicate]

I'm sorry for another too novice question, just never met these things before ) I would like to buy RHEL for my HP DL360p Gen8 server. I'm using it for trading, I have 2 processors. I want it to be ...
0
votes
1answer
38 views

Disable gzip in the response and enable range headers in redhat openshift

I deployed a node js application in the openshift cloud hosting. And i noticed that all the responses have gzipped automatically and the range headers got missing in every response header. Although I ...
0
votes
0answers
41 views

systemd-journald: Received request to flush runtime journal from PID 1

I'm using RHEL7 on Amazon EC2 and I'm experiencing issue while booting it up. last few entries from log are: [ 93.000775] systemd-journald[413]: Received request to flush runtime journal from PID ...
0
votes
0answers
39 views

SSH hangs on remote command execution after prompting for password

I am able to execute remote commands as the root user, but not unprivileged user "admin": [user@jump01 ~]$ ssh admin@10.50.11.1 'ls' admin@10.50.1.1's password: ^CKilled by signal 2. [user@jump01 ...
0
votes
1answer
38 views

Iptables working without configuration

I am currently going to port a Red Hat 6.4 machine and I need its firewall configuration, but something is going on. iptables -L shows a list of rules as expected, but at the same time I can't find ...
0
votes
0answers
23 views

Starting a second tomcat instance with a user other than root on redhat linux

I am running RHEL Server 6.1 After intalling tomcat6 using yum install tomcat6, I needed a different tomcat instance on the same server. Following instructions on ...
0
votes
1answer
71 views

starting redis as a service fails on redhat 6.1

I have installed redis on a redhat 6.1 linux machine. I used the commands make make install cd utils ./install_server I used all default settings so I can start the server with the redis-server ...
1
vote
1answer
68 views

Options for gpg1 instead of gpg2 on CentOS/RHEL 6?

I have a customer whose application workflow relies on gnupg (gpg). Their system was recently migrated from CentOS 5.x, which shipped with gnupg version 1, to CentOS 6.5, which has gnupg version 2. ...
0
votes
1answer
112 views

Unable to install awstats on redhat 7 due to missing perl(LWP::UserAgent)

I'm unable to install awstats on my rhel7 aws ec2 instance: [root@ip-10-146-180-60 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.0 (Maipo) [root@ip-10-146-180-60 ~]# rpm -ivh ...
3
votes
1answer
90 views

RHEL/CentOS - Is it possible to update packages only up to a certain release date?

Technically speaking, if one wanted to update a RHEL or CentOS server using yum, but only up to a certain release date (i.e. don't install any updates released after X date), would it be possible and ...
2
votes
1answer
110 views

CPU error messages shown in console during boot — “CPU1: Stuck ??”

I recently installed a second CPU into a server. The CPU is identical to the first and I verified that the CPU is in good working order prior to the installation. The server booted up and I installed ...
0
votes
1answer
40 views

Can we force dhclient to not renew ip rules?

I've overridden the ip routing rules on my RHEL machine by adding custom logic in a new script ifup-local that is run immediately after a new interface is attached. ...
0
votes
0answers
94 views

RedHat Yum Install Errors (PHP Module)

All, I am trying to use yum to install a PHP module which I expected to take all of five minutes... After quite a bit more than that I am stumped. Yum is throwing an error about a dependency missing ...
1
vote
0answers
49 views

Naming convention for /var/lock/subsys on sysvinit with multiple pids

In this Tips and Tricks article from Red Hat, it is said: When a service is started through an init script, a file is touched in the /var/lock/subsys/ directory with the same name as the init ...
3
votes
1answer
55 views

Error in PREIN scriptlet in rpm package quagga

I am trying to install quagga on my Linux server and I am getting below errors: Error in PREIN scriptlet in rpm package quagga-0.98.6-11.el5.x86_64 error: %pre(quagga-0.98.6-11.el5.x86_64) scriptlet ...
0
votes
1answer
38 views

redhat, multipath on cluster node display different result

I've a cluster with two nodes installed with "RedHat Entreprise Linux Server 5.6" If I execute "multipath -ll" on them, I do not get the same result. I've checked within "multipathd -k" with "show ...
0
votes
1answer
47 views

Linux: Ignored entries in aliases file

I am trying to configure my RHEL6.5 server to send all emails addressed to root or apache to go to my external email address. I have found many guides on doing this and tried all of the suggestions I ...
2
votes
1answer
58 views

Set default numa policy to “interleave” system wide

I know it is possible to set the numa mode to "interleave" (see NB below) for a specific process using numactrl --interleave, but I'd like to know if it is possible to make this the system wide ...
2
votes
1answer
121 views

What is the recommended method to prepare Red Hat/CentOS 7 templates?

If I need to deploy Red Hat 7 from template, I would like to take the recommended steps to make my "golden image" clean. It should boot to the first boot prompt and guide the user through the typical ...
-1
votes
1answer
38 views

mkinitrd to preload virtualBox LSI SAS storage drivers

I am trying to compile my own kernel (2.6.9). Everything works on the compilation and building end, but... After rebooting to the new kernel - the LVM (VolumeGroup00) cannot be loaded. My suspicious ...
1
vote
1answer
72 views

SELinux preventing Apache from writing to a file

SELinux is preventing the apache user from writing to a log file which it owns. When I do setenforce 0 it works. Otherwise it shows this error IOError: [Errno 13] Permission denied: ...