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Questions tagged [rhel7]

Red Hat Enterprise Linux version 7 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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39 views

How to fix phpMyAdmin with PHP 7.2 on RHEL7?

I've upgraded PHP from 5.4 to PHP 7.2 on a vanilla web server running RHEL7. The source of the PHP7.2 is RHSC using yum. I've also installed the standard supporting libraries for this version, ...
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1answer
29 views

How can I have two active ethernet interfaces at the same time in RHEL 7?

I added a second network interface to a vmware VM. The second network interface is on a different network. I used nmtui to define the new interface and then rebooted the machine. Both interfaces come ...
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1answer
23 views

Where should I put my named pipes on RHEL7?

I done some quicky web searches to find out how to make a named pipe. It looks very straight forward I just need to execute as root: mkfifo filename, but what the best practice on where on the ...
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0answers
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SELinux relabeling on boot is stuck

I have problem restoring SELinux on a server and would like some insight. On our server, I recently changed SELinux from enforcing to permissive, and because it did not solve our problem which was an ...
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0answers
21 views

Error with Ansible 2.7.5 IOError: [Errno 13] Permission denied: '/usr/lib/python2.7/site-packages/idna-2.8.dist-info/METADATA'

RHEL 7.5 kernel: 3.10.0-862.14.4.el7.x86_64 ansible-2.7.5-1.el7.noarch python-2.7.5-69.el7_5.x86_64 I'm getting the below error when I run ansible-playbook commands: ansible-playbook -i serverlist ...
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2answers
23 views

php-fpm service disabled by default - why?

Background: The other day our webhost (AWS to be specific) did a reboot due to hardware maintenance and one of our sites went down. It returned a 503 and after some time we figured out that the php71-...
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42 views

Tenable Nessus and SecurityCenter installlation/configuration issues

I've installed Nessus and SecurityCenter on a RedHat 7.5 instance by following the user guide from Tenable. I'm able to get to the Nessus interface which is served on port 8834, create the admin ...
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1answer
57 views

Allowing IP's to access Apache Load Balancer

Why it is not allowing my IP to access Apache Load Balancer <Location /balancer-manager> SetHandler balancer-manager Require host demo-002 Order deny,allow Deny from all Allow ...
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0answers
28 views

Ansible Authentication Failure on localhost for ad-hoc command ansible all -m ping

I'm new to Ansible, using demo software in our development environment, so we don't currently have support for it. However from a RHEL VM that has Ansible 2.7.0 Engine installed on it, I'm trying to ...
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1answer
616 views

RHEL/CentOS - Is remi repo safe for for audits, etc?

We've recently passed our SOCII type 1 audit and are working through the type 2 audit. On some of our production servers, I'd like to push more recent versions of a handful of apps, and I see people ...
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1answer
25 views

Apache tomcat stops after RHEL server patching

I've RHEL server where security team keeps on applying security patches every month and then reboot the server. I've apache tomcat installed on RHEL server and a web application (HTML/CSS/Javascript ...
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2answers
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How to remove connection time out links form RHEL

I want uninstall LAMP from my REDHAT virtual server and reinstall back it again but i don't have internet access on my server and when i uninstall mysql from my server i getting below error please ...
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0answers
40 views

LIO iscsi multipath target with multiple ip but single path shown by windows MPIO

I have a centOS 7.6.1810 iscsi target server with latest patch, I am exporting to a windows 2016 v.1607 initiator some multipath lun using 2 different dedicated 10 Gb/s ethernet nics em1 and em2 on ...
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0answers
22 views

TightVNC Server sometimes fail to start on RHEL7.4

I've a RHEL 7.4 box with TightVNC service enabled on boot and sometimes the service fails to start with a PAM permission denied error: systemd[2027]: pam_nologin(login:account): conversation failed ...
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0answers
20 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 ...
0
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1answer
21 views

2 MySQL instances in the same cib.xml

I have a RHEL 7.3 cluster with 2 nodes, managed by Pacemaker. It's used for MySQL HA. I currently have one MySQL service added to the cluster (MySQL 5.2): <primitive class="ocf" id="mysqldb1" ...
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0answers
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Firewalld configuration on a box with 4 nics one fw zone each

I'm facing a configuration (I think) problem on some boxes that have 4 nics in order to transmit/receive on 4 different lans. Specifically those boxes are rhel 7.5 and each one hosts an Apache Kafka ...
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2answers
234 views

Servers fail to bind to addresses at boot

I'm dealing with a known issue in RHEL 7 whereby services that specify an address to bind to will not start correctly. I've found a number of similar reports, many say they have been resolved with ...
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0answers
48 views

Q: Unable to create 'live' snapshot of running KVM using virsh

I was kindly directed to here, Serverfault from Stackoverflow to pose my question. I'm running the following command on a RHEL7 hypervisor to create a live backup (disc image) of a running kvm, ...
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1answer
54 views

How to enable a product in a subscription of RHEL 7.5?

How can I install a product displayed by the output of subscription-manager list --consumed? Right now, I have only one product installed on my Red Hat Enterprise Linux 7.5. $ sudo subscription-...
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284 views

Failed to initialize NSS library Centos7

Yum, command not working on centos7. My ssh connection was stopped during yum update. After that, I faced this issue. > error: Failed to initialize NSS library There was a problem importing > ...
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SSH Auth through sssh

i have openldap and rhel7.4. My problem is i would like ssh authentication through sssd. At this point : sssd.conf [sssd] config_file_version = 2 services = nss, pam domains = MYDOMAIN.FR [domain/...
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65 views

NFS Lock Manager / rpc.lockd is not running

I have installed nfs client in my server (yum install nfs-utils nfs-utils-lib -y) in order to mount NetApp NFS storage. Everything works well and I was able to mount the storage as well. owever, I ...
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1answer
93 views

auditlog filling up without any rules

I have set up certain audit rules however audit log is filling up with unnecessary events which I don't want to log. is there any way that auditd will log only defined rule-based logs. OS: -Rhel 7.3
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1answer
145 views

sudo user is not allowed to execute systemctl

I'm trying to allow a user to use sudo to manage a custom systemctl service, this however seems to fail and I can't figure out why. [root@testvm sudoers.d]# ll total 16 -r--r-----. 1 root root 334 ...
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0answers
89 views

R640 and R740 Dell with 10G NIC

I have few servers, 14G Dells, specifically R640 and R740 being used by QA guys. These servers have RHEL 7.4 installed with 10G based Intel cards. Randomly, the 10G NIC cards would suddenly appear as ...
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1answer
40 views

rhel7 default gateway in the route table

After restarting network/rebooting the server, the default gateway IP address is also getting added as a route Destination in RHEL7. How can I prevent this? We have not specified this setting and not ...
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1answer
166 views

RHEL 7 doesn't mount drive from /etc/fstab on boot?

I have a RHEL 7 server with this line in /etc/fstab: \\10.0.0.1\backup /mnt/backup cifs user,uid=500,rw,suid,username=admin,password=password 0 0 It is exact same line that I am using on other ...
4
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1answer
190 views

HyperV Linux EFI VHDX migration is missing EFI in the boot options

I have a HyperV 2016 cluster of n machine running on W2k16. I've duplicated the VHDX of a RHEL 7.5 (Gen2) VM that runs with this boot order (and secure boot disabled): After creating a new VM with ...
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1answer
38 views

rhel7 yum repository metadata GPG signatures

I'm trying to sign yum repo metadata using GPG, as part of a Jenkins job. This is proving more difficult than I first imagined, but I'm sure lots of people must have done this already. I've worked ...
2
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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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2answers
165 views

Can we install a Kubernetes cluster on RHEL atomic hosts?

We want to install an on premise Kubernetes cluster. We have a license for RHEL and RHEL atomic. I know Red Hat has its own Kubernetes based platform called OpenShift. OpenShift can be installed on ...
0
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1answer
28 views

Chkconfig ignores service dependencies

So I have these 2 files: /etc/init.d - service1 - service2 service2 is like: #!/bin/sh # chkconfig: 2346 95 45 # description: desc # processname: service2 ### BEGIN INIT INFO # Provides: ...
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1answer
216 views

vsftpd error 530 Login incorrect error occurs with valid credentials

Though there are a number of similar existing question/answers that reference vsftpd and error code 530, but they do not seem to be helpful in this case: vsftpd login error: 530 VSFTPD 530 Login ...
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2answers
85 views

How to identify PID of process that is generating lots of ICMP ping requests?

I have a box that is generating lots of outgoing ICMP requests. I am able to see a few happening every second with tcpdump -nni ens192 icmp. However, I don't have anyway of tracing these back to the ...
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2answers
189 views

What is ideal directory for kafka messages

The default value of logs.dir=/tmp/kafka-logsin server.properties. Usually /tmp is avoided from keeping any important files and we are storing messages and offsets! Any particular reason why one may ...
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0answers
114 views

yum --disableexcludes=main not working in RHEL 7.5?

On my RHEL 7.5 host, I've excluded kernel updates on /etc/yum.conf When I attempt a yum update with --disableexcludes=main, the exclude is not disabled. Only --disableexcludes=all seems to work. ...
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1answer
53 views

Docker EE 2.0 - Supported OSes

I am unable to figure out what are the supported RHEL versions for Docker EE 2.0. This article (Compatibility matrix) states that RHEL versions 7.3-7.5 are supported. However the article - Docker ...
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0answers
230 views

Unable to install plugins on Jenkins server

When I try to install any plugin on my Jenkins server, I get below error in the browser. I can see the list of Available plugins. Error occurs when I select any plugin and click on Install without ...
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1answer
24 views

RHEL 7.5 service behind password updates?

RHEL 7.5: A single user could not sudo because of password failure. Password resets did not work. Account was unlocked /var/log/secure said something like, "pw change set for a future date" I ran ...
2
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1answer
91 views

Cannot login with account on RHEL 7.5 server with DISA STIG Profile enabled

This has happened several times now, and I am getting frustrated. I don't know how it happens, but sometimes a user account gets locked out. I change their passwd, either through passwd or chpasswd. ...
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0answers
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pacemaker not monitoring the service although giving op monitor interval=10s while creating resource

Following is the service scripts which runs custom script. [root@xxxxxxxxxxvmrf0001vbisalah001 ~]# cat /etc/systemd/system/drbdRes_rhcdDaemon.service [Unit] Description=Manage drbdRes cluster ...
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1answer
887 views

Getting “Couldn't connect to realm service” error while joining rhel7 instance to a domain

I am trying to join a rhel7 node to a domain using a chef cookbook but getting error: realm: Couldn't connect to realm service: Error calling StartServiceByName for org.freedesktop.realmd: GDBus....
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0answers
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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32 views

grubby - remove one of multiple existing args

I got the following Problem: To boot my RHEL7.5, i have the following arguments in my /etc/grub2.cfg: index=0 kernel=/boot/vmlinuz-3.10.0-862.el7.x86_64 args="[...]rd.lvm.lv=system/lv_root rd.lvm....
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1answer
264 views

ssl_verify_client (system bus name :1.13917, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)

I set the flag ssl_verify_client to on in my configuration file in /etc/nginx/locations and I am getting the following error - polkitd[1378]: Unregistered Authentication Agent for unix-process:150916:...
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0answers
648 views

Connection closed by UNKNOWN port 65535 when SSH using AD Creds on RHEL Machine

Recently I installed PAM & all the necessary packages needed to enable ssh authentication via AD on my RHEL 7.5 machines. When I try to SSH using "ssh user@domainname@hostname" it asks for my ...
2
votes
1answer
781 views

apache 2.4 ProxyPass directives not working in RHEL7.5

I'm having trouble setting up a reverse proxy with apache 2.4.6 on RHEL7.5. I have the following virtualhost which sends requests to 3 backends: <VirtualHost *:80> ServerName www.example....
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112 views

NFS Mount hostname listed as something different from what was entered

Assume there exists a nfs server foo1. A client machine contains a hosts file with the following entry 172.168.1.2 foo1 foo2 foo3 which points to that server and a few aliases. Also assume that /...
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2answers
81 views

Added expanded disk capacity to RHEL7

I have an Hadoop cluster that is quickly running out of room. This cluster is built on RHEL7 VMs on GCP (Google Cloud Platform) Compute Engine. I had originally provisioned the cluster with 10Gb ...