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Questions tagged [rhel6]

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 CentOS and Scientific Linux.

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pam_access using netgroup for host origin

I would like to be able to use: + : @user_netgroup : @host_netgroup in my access.conf, but this seems to fail due to pam_access not supporting host netgroups. If I substitute an IP or fully ...
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2answers
61 views

Using /dev/shm folder for pid files on RHEL6/CentOS6?

RHEL7/CentOS7 has a dedicated folder: $XDG_RUNTIME_DIR (e.g. /run/user/1000) for pid files, that folder is a tmpfs. However RHEL6/CentOS6 does not have $XDG_RUNTIME_DIR. RHEL6(also RHEL7) has a ...
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1answer
68 views

openldap “invalid credentials” trying to authenticate with Active Directory

We have an AD server running and it works for every windows machine on our domain for authentication across many services. We recently brought a RHEL6 machine online and are trying to configure a ...
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1answer
15 views

nrpe unit not found when services try to start on linux server

Am trying to run nrpe services in linux server but got this error nrpe unit not found. Please help on this issue
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9 views

Having this messages in the login prompt “set_rtc_mmss: can't update from 1 to 55” [duplicate]

What are this messages directly related to hardware clock? It just started spanning as the system boot up and drop into the login prompt.
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1answer
101 views

Why is Nginx only serving the Index mark-up when I use it as a reverse proxy for Nexus 3 Repository Manager?

I am trying to serve a Nexus3 Repo Manager through Nginx reverse proxy, but it only serves the Index mark-up. I have set up Sonatype Nexus 3 Repository manager on an Azure RHEL (SELinux) instance. I ...
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2answers
140 views

How can I disable the password reset prompt at ssh login for expired password? (RHEL 6.9)

Environment: Red Hat Enterprise Linux Server release 6.9 (Santiago) LDAP provided by Oracle Directory Server running on Solaris How do I turn off the automatic change password prompt when a user ...
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1answer
545 views

bond slave interfaces not getting the same aggregator id on LACP

I have a bug on some servers where LACP (802.3ad) is not working. I have on all servers a bonding device bond0 with two eth slaves and each interface is plugged on a different swich, and both switches ...
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1answer
37 views

Force a specific user or application to user a specific java version

Bear with me, I'm new to sysadmin stuff. We have a server running RHEL 6 (2.6.32). We have a Pentaho application that interacts with the server as a pentaho user, and we have a team user under whose ...
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1answer
63 views

Do we need to reboot RHEL Servers, after making changes for control-alt-delete override?

We are planning on disabling the RHEL Server reboot triggered by control-alt-delete. for which we are going to follow the Steps mentioned here. However, that link does not say whether we need to ...
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1answer
95 views

module be2net not loaded with define parameter in /etc/modprobe.d/

I want to load the be2net module with the parameter rx_frag_size set to 4096, the default value being 2048. As specified by the documentation I created a file /etc/modprobe.d/be2net.conf with the ...
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20 views

How to stop sending back acknowledgements to sender MTA from my POSTFIX server?

I have setup two MTAs using postfix service. The first one just acts as the relay server and sends mails to the second postfix. The second postfix server can send mails to gmail/yahoo or any public ...
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1answer
868 views

Why do I receive [Errno 14] PYCURL ERROR 7 - “couldn't connect to host” when running yum commands in Red Hat Enterprise Linux and CentOS?

When running yum update, the below error message occurs Loaded plugins: product-id, rhnplugin, security redhat-rhn-satellite-5.5-server-x86_64-6 ...
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1answer
82 views

Passwordless SSH Local Port forwarding [closed]

I have setup SSH Local Port forwarding successfully with the below command ssh rex@server-001 -L 0.0.0.0:4122:node-x3:22 Now I am trying to do a passwordless access . For that I am using below ...
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1answer
68 views

IPv6 configuration missing in interface config file

When I use ifconfig command I get the following output: eth0 Link encap:Ethernet HWaddr 2C:59:E5:49:54:10 inet addr:172.16.128.132 Bcast:172.16.128.255 Mask:255.255.255.128 ...
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9answers
7k views

How do I use Linux to find unused IP addresses on my network?

I've got access to two computers (A and B) on a network. Both have got a static IP address with a subnet mask of 255.255.255.128 (I checked that a DHCP server was not being used). I want to configure ...
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1answer
163 views

Is it possible to create a RHEL 6 repo on a RHEL 7 server

I am trying to create a RHEL 6 repository, but since I have a RHEL 7 repository, I was thinking if it is possible to create that repo on the same server. I already have a valid and currently ...
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2answers
960 views

SSH Local Port forwarding working from localhost only

I can directly access Host A ( 10.100.64.112) from my HomePC but cannot directly access Host B (172.88.3.31) . To access Host B , I need to first ssh to Host A and then to Host B . To directly ...
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1answer
307 views

SSH hangs on connecting to a specific server

I use ubuntu 14.04 and I connect through SSH to a dozen odd servers both physical machines and virtual ones on the cloud. On one of my servers I used to connect through an RSA Authentication Key, I ...
0
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1answer
188 views

Moving Nagios Core to new server (RHEL6 to CentOS 7)

The time has come to migrate our very,very old Nagios Core server on RHEL6 to a new CentOS 7 machine. This old nagios server has been running for several years. I am wondering if all I have to copy ...
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1answer
195 views

RAID1 mdadm, automatically fail a drive and avoid a read-only file-system?

I am managing a server with two solid state drives configured in mdadm RAID1. The server is running RHEL6 with an ext4 filesystem. This evening the server went offline shortly after nightly backups ...
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1answer
68 views

OpenSCAP reporting false for RHSA patches on Redhat6 Server x86_64

did OpenSCAP scan initially and was inform of that the server had 16 hits on definitions that require patching. performed yum update and rebooted said server and its reflecting the newer version :2.6....
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1answer
71 views

RHEL6 NFSv4 client acting like NFSv3?

My understanding is NFSv4 clients should immediately connect to the NFSv4 service on the server, skipping the rpcbind portmapper and mountd service interactions entirely, but I'm seeing my RHEL6 ...
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1answer
67 views

How to findout if haldaemon is being used or udev in RHEL server?

I am quite confused if hal is really in use or just udev. What I understood: In general, HAL is an abstraction layer that allows an operating system to interact with a hardware device. And daemon ...
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3answers
141 views

Cannot track down the large size file/direcotry under /root

OS: RHEL 6.9 Problem My file system /dev/mapper/vg_rayruhsso-lv_root that is mounted on / has no available size. # df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/...
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1answer
196 views

Nagios on RHEL 6 (EPEL package) stopped working after update

The EPEL package for Nagios on RedHat Enterprise Linux 6 has been updated some weeks ago from version 3.4 to version 4.3. The update has been done by a simple yum update command, and nothing indicated ...
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1answer
32 views

Only allow root to do su specific user

I'm on RHEL 6.8 I have a user "myuser" with sudoer rights and other users with no sudoers rights. Can I only allow root to do a "su myuser" in local ? Thank you
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1answer
931 views

RHEL, Change Host and Domain Name

I want to change the Hostname and Domain Name of the Server without using yast because in this there is no yast or yast2. So please provide me the command for changes this. I am using Red Hat ...
2
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0answers
26 views

Stop Apache Traffic Server from creating config file backups

I've got an installation of Apache Traffic Server running. All is great, except it keeps overwriting my symlinked configuration files! For failover purposes, I've replaced records.config and remap....
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0answers
49 views

Reset nproc value of root user

Website goes down and apache error log is below: [Sat Dec 09 19:23:22 2017] [alert] (11)Resource temporarily unavailable: setuid: unable to change to uid: 2 [Sat Dec 09 19:23:22 2017] [alert] (11)...
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1answer
38 views

df reporting incorrect disk utilization

Why df reporting incorrect disk utilization report $ df -h /shareddata Filesystem Size Used Avail Use% Mounted on /dev/mapper/share_vg-lv_shareddata 886G 830G 11G ...
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1answer
1k views

IPMI : FATAL: Error inserting ipmi_si

i have a problem with ipmi: i've already install ipmitool, ipmi_devintf, ipmi_msghandler, but when i try to install ipmi_si i receive this message: $ modprobe ipmi_si module FATAL: Error inserting ...
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1answer
180 views

RHEL6: httpd can't bind to port

We have RHEL 6.5 server which serves as local YUM server and uses httpd for the purpose. It's running on port 6809. And until yesterday it was running fine. One of my colleague was doing some ...
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0answers
212 views

Exec format Error. cxbf.ko from kernel has no modversions, so it cannot be reused for kernel

OS: Red Hat Enterprise Linux Server release 6.9 (Santiago) I was updating RHEL packages and ended with errors like: ERROR: modinfo: could not open /lib/modules/3.8.13-16.2.1.el6uek.x86_64/extra/cxbf....
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0answers
103 views

How to limit sudo users permissions in RHEL7?

We have a user 'ec2-user' on RHEL. This is the sudo user for our system. Now we want to restrict the permissions for this user, i.e. the user should be having all permissions in folder /home/ec2-user ...
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0answers
462 views

Check if HTTP Methods have been Allowed and Enabled on Localhost

I’m running Apache/2.2.15 (Unix) on a RHEL system. My LAMP is running on localhost. I want to check if the HTTP methods: POST, GET, PUT and DELETE are allowed and enabled. I’ve read that ...
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0answers
260 views

SELinux prevents NRPE to run properly in RHEL 6.8: Could not complete SSL handshake with

I downloaded nrpe-3.2.0.tar.gz and nagios-plugins-2.2.1.tar.gz, extracted, compiled and installed in a RHEL 6.8 64-bit box. It runs fine when SELinux status is Permissive, but it does not work in ...
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1answer
41 views

circular dependency for php-json on RHEL 6

I am trying to install php7 on RHEL6. Can not add alternate channel to RHN , so tried downloading all packages from remi repository and then ran following command: [root@MYSERVER php-packages]# yum --...
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0answers
361 views

nginx http to https rewrite rule no longer works

I have an nginx server that is the reverse proxy for numerous internal services. While I don’t know when the issue started; currently, the rewrite statement is no longer working to redirect all http ...
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2answers
1k views

Create local repository with all dependencies from rpm

I have a custom rpm given to me by a vendor that has dependencies that are pulled when installed. I need to install this package on a closed network system, so I cannot access the internet to gather ...
2
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1answer
3k views

easy_install and pip fail with SSL warnings

I'm looking after some RHEL6 servers and trying to set them up to use an internal PyPi server (proxied by Nexus 3). The problem is that our internal PyPi server is one of several SSL VHosts on the ...
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1answer
313 views

syslog-ng 3.2.5 server stops receiving data, possibly related to logrotate

I asked this question in Unix & Linux but I think it actually fits better here. Currently, I use the following logrotate.d configuration /var/log/messages { daily compress rotate ...
0
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1answer
567 views

Multiple site.pp for the same nodes

I need to write multiple site.pp file for the same hosts. It gives me the following error Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Node 'default' is already defined ...
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1answer
2k views

Installing python development package on RHEL

I have been trying to install python development package on my red hat machine but not able to find the package any where. My server is a Red Hat Enterprise Linux Server release 6.8 (Santiago)( ...
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1answer
455 views

Enable NTP with clock slewing on RHEL6

I have a RHEL6 server running an Oracle database. When the server was built, NTP wasn't enabled or configured. My task is to do that without impacting the database. After doing some research, I was ...
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1answer
148 views

Puppetserver not coming up after fresh installation

Pupppetserver service is not coming up after fresh installation. It is showing the following error Exception in thread "main" java.lang.ClassNotFoundException: java.nio.file.Files, compiling:(...
0
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1answer
469 views

Puppet File resource :“Parent Directory does not exist” error

I am getting the following error during directory creation using file resource Error: Cannot create /data/tomcat/${dirsname}/conf; parent directory /data/tomcat/${dirsname} does not exist Error: /...
0
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1answer
245 views

Puppet : resource already defined error

I am trying to create multiple directories and then copy files to each of the directories . For that I have created the following resource $dirs=myapp $appdirs = [ "/data/tomcat/$dirs/conf", "/data/...
2
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2answers
789 views

Opening a firewall port in RHEL 6.8

I am struggling to determine if a specific port is open according to the firewall in Redhat 6.8 I want to open port 2222. I have tried the following: system-config-firewall, running as sudo , and I ...
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0answers
69 views

Red Hat Enterprise Linux 6 lvremove succeeds but causes system to not boot

I started with a fresh install of RHEL 6, and it created a default swap as a logical volume (/dev/vg_hostname/lv_swap), along with the root (/dev/vg_hostname/lv_root) mounted as / I then created a ...