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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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 ...
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1answer
24 views

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 ...
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/dev/disk/by-path is missing

On a RHEL 7.6 system we use, there is no /dev/disk/by-path for a reason I don't know. Generating it manually doesn't seem like a good solution. I'm seeing records on /dev/disk/by-id though. Is this ...
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22 views

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 ...
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1answer
35 views

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?
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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 ...
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18 views

Access deployed self-hosted engine ovirt

I have configured a self-hosted engine following options shown on ovirt UI. Now I do not know how to access this self-hosted engine. This is what I see on the UI. However, I'm not able to type ...
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30 views

Do I need to re-activate my tuned-adm profile after server reboot?

I have a tuned-admin profile on my server that is currently active. After reboot, my server is set to start tuned automatically. Is there anything I need to do to my tuned-adm profile after reboot to ...
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1answer
159 views

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 ...
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1answer
591 views

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 ...
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0answers
51 views

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 ...
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1answer
594 views

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 ...
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Veeam agent for linux stops working after service restart

I am running VEEAM B&R on a Windows 2012R2 server. It pushes the agent for linux to my RHEL6 systems. This part works fine and backups work. HOWEVER, if I restart the agent service or reboot ...
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1answer
345 views

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 ...
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1answer
313 views

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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1answer
47 views

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 "...
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1answer
51 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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1answer
204 views

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 ...
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1answer
28 views

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 ...
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2answers
794 views

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 ...
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1answer
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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-...
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0answers
37 views

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
104 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
3k 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
720 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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1answer
654 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
1k 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
4k 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
80 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
178 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
437 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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1answer
3k 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? [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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1answer
669 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
95 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
10k 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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2answers
587 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
5k 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
836 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 ...
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1answer
537 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 ...
0
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1answer
420 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
106 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
279 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
216 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
1k 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
321 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
94 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
3k 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 ...
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0answers
47 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
99 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
43 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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