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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How do I update a very old CentOS release (6.2) where yum won't work at all because of outdated openssl certificates?
I have an old CentOS 6.2 machine and need to update a few packages on it (or many packages, I suppose).
However I can't do anything with yum because even after changing the repos to vault.centos.org, ...
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1
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On Fedora, how do I configure selinux to allow a port for a new undefined service type?
I have several things that I'd like to be able to stand up as servers on Fedora. I know I can run at least some of these in podman or docker but I already know how to do that. I also already know how ...
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RemainAfterExit in Upstart
Is there an Upstart equivalent to systemd's RemainAfterExit?
I have an upstart task that exec's a script that completes quickly when the task is started. However, I would still like that task to ...
4
votes
1
answer
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Users unable to create files/directories on NFSv3 mount, but can modify
I've got two RHEL 6 servers, one is an NFS server (we'll call it nfs-server, say its IP is 10.1.1.1), and the other is a generic client for all intents and purposes (we'll call it nfs-client, say its ...
- 171
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1
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Restarting winbind service on rhel6, service restarts but ansible fails the run
Seeing this consistently with the playbook below.
- hosts: all
gather_facts: no
become: yes
tasks:
- name: restart winbind
service:
name: winbind
state: restarted
- name: ...
- 11
0
votes
1
answer
1k
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Yum update cleanup is hanging
I'm having difficulty locating the cause of a problem I've encountered in a version of the software I'm working on in which a yum update is being applied to update all packages on the system at the ...
- 137
2
votes
1
answer
959
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Chrony stepping instead of slewing clock
I have a bunch of RHEL 6.8 - 7.4 Azure VMs for which the system clocks are out of sync (up to 300s slow). I'm installing Chrony on them but rather than slewing the clock to the correct time it is ...
- 51
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0
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344
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Virsh Console Can't Access to rhel VM (a pty console, instead of serial console)
the pty console:
<console type='pty'>
<target type='virtio' />
<alias name='console1'/>
</console>
no output when I exec the command virsh ttyconsole vm_name
the log (...
- 21
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2
answers
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It should be set to 65000 to avoid operational disruption
I'm following Taking Solr to Production | Apache Solr Reference Guide 8.5, however unable to overcome warning while restarting solr service:
# service solr restart
*** [WARN] *** Your open file limit ...
- 13k
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1
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192
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RHEL Apache Unable to Add Trailing Slash to the URL
I'm using a Red Hat Apache web server (2.4.6). The Apache is adding "/" at the end of URL if directories are accessed (default behaviour) through http 301. I want to avoid http 301 by the ...
0
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1
answer
712
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Nfs server thread count is increased, but new threads don't start
We're running an nfs-server on RedHat 6.9 Santiago and recently we've experienced large I/O waits on clients. After some troubleshooting we decided to increase the number of nfs threads.
After ...
- 111
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1
answer
52
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Is kernel 5.4.y supported for RHEL6?
We are trying to build 5.4.y for RHEL6/7/8, does anyone built the kernel 5.4.y for RHEL6? is it supported?
- 11
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2
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Only oracle user can run sqlplus
I have a couple of RHEL 6 boxes with Oracle 12.2 server and 11.2 client. This is the vendor requirement.
On one server I can run sqlplus as any user, on the other server I can only run sqlplus as ...
- 616
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1
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Setting password authentication for default Postgres account
I'm trying to resolve an issue that was found during a Nessus scan involving the default postgres account not having authentication.
https://www.tenable.com/plugins/nessus/10483
I've been trying to ...
- 137
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votes
1
answer
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SSH hangs on "exec request accepted on channel 0"
I have a question that appears very similar to others that have been asked but none of them have answered my problem. I'm running into an ssh error on sending a command (not loading an interactive ...
- 31
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0
answers
216
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Apache misconfiguration - config works on apache 2.2 but not 2.4
I have a set of cgi scripts which run on a RHEL 6.x (with Apache 2.2) box fine.
There is a cgi-bin directory containing the scripts, plus an index.html (pure html) which serves as a front end to the ...
0
votes
1
answer
2k
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Unable to access ElasticSearch on AWS EC2 with private/public ip
I have an Elastic Search running on 9200 on rhel 6. I cannot reach to it in aws with private/public ip. On the other hand, i try it with curl localhost:9200, it is good. I can also ping google.
I ...
- 107
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1
answer
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Active Directory Group Membership not reflecting correctly in linux
Background:
On an isolated network. Multiple RHEL6 Linux systems connected to a Windows 2012R2 DC. Systems joined to domain and authenticating with DC. Using IDMAP_RID. No known changes to ...
- 157
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votes
1
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RHEL: Getting current kerberos/Kinit user ID after login?
I am connecting by SSH to a RHEL6 server.
When I SSH into the box, I am challenged for my linux username/password (which is a shared account)
username: mySharedLinuxUser
pass for mySharedLinuxUser:...
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vote
1
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Why is this VirtualHost definition activating when the ServerName doesn't match? [duplicate]
I've got a httpd24 server that I want to use to server multiple domains.
I've got a 3 VirtualHost definitions.
<VirtualHost *:443>
ServerName one.example.com
# SSL stuff
DocumentRoot "...
- 121
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1
answer
168
views
How can I check if I have these XFS metadata scalability improvements on CentOS6?
We seem to be having trouble with some metadata update performance on CentOS6, so I am checking to see if we have the improvements mentioned in this presentation by Dave Chinner:
http://xfs.org/...
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1
answer
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Problems with auto-mounting MDADM-created RAID array and creating RAID device
I'm working on a script that automatically detects new drives that have been added so they can be formatted and turned into a RAID-5 array. I've been able to detect the drives and format them with ...
- 137
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votes
1
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33
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mod_proxy apache httpd 2.2.* . (rhel6) reverse_proxy
I'm trying to migrate a website from on premise to AWS cloud. I want to keep the current site live and test the AWS hosted version as well.
The apps pseudo hostname is www.hostname.com to have a ...
- 1
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votes
2
answers
3k
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High INACTIVE memory
i usring Oracle Enterprise Linux 6.5 and Oracle Database 11g when i execute "top" show this to me
top - 14:08:02 up 5 days, 18:34, 2 users, load average: 0.00, 0.01, 0.05
Tasks: 340 total, 1 ...
1
vote
1
answer
2k
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How to make httpd24 (scl) use php >= 7.2 (RHEL 6.10)?
I am fairly new to working with RHEL and I was wondering if it was possible to have an httpd24 instanced installed as a software collection
httpd24.x86_64 1.1-18.el6 @rhel-x86_64-server-6-rhscl-...
- 11
1
vote
0
answers
85
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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 ...
- 316
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votes
2
answers
244
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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 ...
- 103
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votes
1
answer
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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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1
answer
5k
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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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1
answer
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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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votes
2
answers
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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 ...
6
votes
1
answer
11k
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 ...
-1
votes
1
answer
475
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 ...
- 101
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votes
1
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214
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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 ...
- 87
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1
answer
737
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 ...
1
vote
1
answer
5k
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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? [duplicate]
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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vote
1
answer
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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 ...
- 513
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votes
1
answer
401
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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9
answers
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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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votes
2
answers
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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 ...
- 123
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votes
2
answers
13k
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 ...
- 513
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vote
1
answer
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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 ...
- 121
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votes
1
answer
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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 ...
- 239
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votes
1
answer
752
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 ...
- 1,346
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votes
1
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150
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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....
2
votes
1
answer
415
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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 ...
- 31
0
votes
1
answer
753
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 ...
- 651
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votes
3
answers
4k
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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1
vote
1
answer
880
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 ...
- 1,683
1
vote
1
answer
304
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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