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 ...

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BitBucket Server port 7990 constantly dropped

I recently bought and installed Bitbucket server 4.7.1 from Atlassian on an AWS RHEL 7.2. The install seemed to go well and the server comes up just fine. I also created an apache reverse proxy to be ...
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18 views

RHEL 7.2 firewalld: all interfaces in the default zone upon reboot

After a reboot, all interfaces are put in the default zone, as defined in /etc/firewalld/firewalld.conf by the DefaultZone parameter. Running systemctl restart firewalld puts the interfaces in the ...
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0answers
23 views

How to disable auto fsck in Centos 7?

Is there a way to disable auto fsck while booting up on Centos 7 when it is XFS file system running on it. I know in legacy versions, we use touch /forcefsck, tune2fs -c0 -i0 /dev/FILESXX etc to ...
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21 views

Virtualized windows 7 under qemu/kvm hangs

I have set up a windows 7 virtual machine using Red Hat 7's standard qemu/kvm. When I start up the vm, windows boots to the point where it says "Starting Windows" and displays the stylized window. ...
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11 views

Applying ppolicy.ldif in OpenLdap

I just added the ppolicy.ldif schema to ldap by running the following: ldapadd -T EXTERNAL -H ldapi:/// -f /etc/openldap/schema/ppolicy.ldif I then try to ldapadd my change.ldif file seen below #...
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0answers
38 views

Cron not logrotating for cron.daily

I'm running a rhel7 server and I have a rsyslog logrotate config file that doesn't seem to run using cron job. It will only work if i run it manually Troubleshooting steps i took: logrotate -df /etc/...
2
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1answer
37 views

how to intentionally damage linux MBR (RHEL 7) on disk for test purpose?

I am running tests for MBR recovery on Red Hat Linux 7. I tried to intentionally erase the MBR with: dd if=/dev/random of=/dev/sda bs=1 count=512 I can see with fdisk -l /dev/sda that the ...
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1answer
24 views

Getting an error when trying to start the “ntpdate.service” for RHEL7.1

I am trying to restart services for openstack, and under my /etc/systemd/system/multi-user.target.wants/ I run a systemctl start ntpdate.service and get the following error: May 31 12:05:39 ...
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18 views

How to share /Volumes from a mac on nfs

I need to share the "/Volumes" directory and all it's mounted point to a linux client but it doesn't seems to work. I don't want to share every mount point on this mac because it's a workstation with ...
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1answer
45 views

home logical volume is not available after reboot

On a server with RHEL 7.2 it gets to emergency mode when rebooting. Looking a bit I found out that what happens is that the /home partition was missing and the reason was LVM: --- Logical volume ---...
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1answer
22 views

Build rpm on CentOS for RHEL

I need to install some software which is not available pre-compiled on a client's RHEL Server. I decided to create a rpm for easier installation on multiple systems. As i have no RHEL subscription, ...
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37 views

Check if RHEL certs have been updated

I have a sample .pem file placed in /etc/pki/ca-trust/source/anchors, and I have run update-ca-trust, but I'm not sure how I can check if the command actually worked. I tried to cat /etc/pki/tls/certs/...
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1answer
49 views

RHEL/CentOS 7 run named-chroot on systemctl named invocation?

How can I make systemd treat calls to systemctl xx named as calls to systemctl xx named-chroot? Under RHEL/CentOS 6 installing the bind-chroot package would set up a chroot'ed environment for BIND, ...
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1answer
200 views

Having trouble installing MySQL Community Server on new RHEL 6.8 instance

I'm having trouble installing MySQL 5.7.12 on RHEL 6.8. The first RPM I downloaded was for RHEL 7.0. This is a brand new instance, and I stupidly assumed it would be RHEL 7. It's not. So my ...
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38 views

How can I configure a single-node cluster on RHEL 7?

For particular purposes, I'd like to know how can I configure a RHEL 7 HA cluster with only one node (of course, no HA will be available in this scenario). The following article says that single-node ...
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2answers
34 views

nginx permission issue serving static file - RedHat 7 SELinux issue

This is a new installation which I followed the passenger+nginx guide. This will eventually be a rails site, but for now I am trying to get static files to serve, and am unable to figure out the ...
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1answer
42 views

Moving disk space from /home to / on RHEL7.2 with xfs file system

I've setup RHEL7 with default partitioning, and they partitioned it as following: /dev/mapper/rhel-home 100GB /home /dev/mapper/rhel-root 50GB / Both are on xfs filesystem. How can i shift most of ...
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15 views

How can I update certs on RHEL with cloud init?

The cloud-init documentation says that this syntax ca-certs: trusted: - | -----BEGIN CERTIFICATE----- THIS IS A TEST -----END CERTIFICATE----- will update certs. This code works just ...
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1answer
58 views

Installing rpm-package to systemd?

I am new to systemd, and trying to get an in-house app packaged as rpm, to install on systemd host (RHEL7). The rpm tries to place the systemd .service-file: myapp.service into: /etc/systemd/system ...
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2answers
53 views

rhel7, apache2.4 - 403 forbidden with symlink

I googling many many info about this, but none of the proposed solutions did not help me. What i have: clean rhel7 system clean apache 2.4 web dir: /var/www/domain.com/public_html symlink: /var/www/...
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0answers
24 views

How to emulate or make multiple iSCSI software initiator IQNs on RHEL RedHat 7?

I have 2 Ethernet HBAs with 2 ports each, all 4 ports are connected to iSCSI targets and I can login using iscsiadm command. But the iSCSI initiator name (IQN) for all 4 ports is one, in /etc/iscsi/...
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0answers
14 views

Using chkconfig to implement auto-start on RHEL7? [duplicate]

I'm moving an in-house application from RHEL6 to RHEL7 servers. I read you should still be able to use chkconfig and service commands to install start/stop scripts, even if they have now changed to ...
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34 views

failed to start domain on RHEL 7.1 using KVM

I want to create a domain(guest machine) on my RHEL 7.1 using KVM. The domain is getting defined but when I start it, it shows the following error: virsh # start vm-1 error: Failed to start domain vm-...
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2answers
41 views

how to execute a script Rhel 7 at booting time?

I am trying to execute a shell script on RHEL7.1 when the machine starts. As in ubuntu, Upstart scripts (in /etc/init/) are used to execute any scripts or to start any services at boot time, is there ...
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0answers
12 views

Supermicro with RHEL 7.2 Maipo failed drives

We have some new supermicros 6028r with RHEL 7.2 Maipo and the machine has a failed drive, but physically none of the drives are labelled on the machine and none of the drives has a bad LED. Can ...
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1answer
35 views

RHEL7 wireless configuration not available

I'm trying to use a wireless USB key on a RHEL7 NUC. The adapter shows up in 'ifconfig': eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.21 netmask 255.255....
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0answers
16 views

How to stop iSCSI server?

Is it possible to stop listening on iSCSI server port 3260 without deleting the portal from the configuration? I tried to stop all services I know, but it's still running. [root@okvmh1 ~]# systemctl ...
1
vote
1answer
69 views

Mounting Windows NFS share from RHEL7 - uid/gid show as 4294967294

I need to mount a directory on a Windows Server 2012 system with rw access for local user apache. If I mount with defaults: server2012:/sharedir /appfolder nfs defaults ...
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votes
1answer
18 views

what could be the firewalld(RHEL7) equivalent command

what could be the firewalld(RHEL7) equivalent command of "iptables -A INPUT -p tcp -m tcp --dport 5666 -j ACCEPT" ?
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26 views

How to configure vsftpd to use /opt/etc/passwd to authenticate

I have FTP setup on Solaris 8 and I am trying to migrate it to RHEL7. Present Architecture on Solaris FTP daemon is chrooted under /opt. When users try to login to FTP, they are authenticated with /...
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0answers
24 views

How to validate grub boot environment parameters with grubby

I am updating grub parameters in RHEL 7.0 with grubby command using /usr/sbin/grubby --update-kernel=ALL --args='isolcpus=14-24' followed by /usr/sbin/grub2-install /dev/sda and reboot I very well ...
2
votes
0answers
354 views

Recovery from i8042 no controller found during boot?

I have a set of identical hardware, Dell R210s. To replicate their configuration, I use a method to image /dev/sda from a working machine, and then apply that image to a new machine. It has been ...
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0answers
24 views

IPSec not getting established using digital certificates with ipsec whack CLI

I am trying to establish IPSec SA by giving run time commands to Pluto but it fails in negotiation phase by not exchanging the certificates. Command used on server : ipsec whack --name hello --...
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0answers
23 views

Error on installation CentOs 7 with kickstart bond ipv6

0 with kickstart . The network is bond and the line is network --bootproto=dhcp --device=bond0 --nameserver=2001:4860:4860::8888 -ipv6=fc00::5/7 --bondslaves=eno1,eno2 bondopts=miimon=80,updelay=...
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2answers
27 views

rpm command hangs when executed as non-root user on RHEL7

I have a weird problem where the rpm command hangs for 40 seconds (it's always exactly 40 seconds) when executed as any non-root user. It doesn't matter what command line arguments are used, even "rpm"...
2
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2answers
228 views

Allowing httpd to run a bash script in /usr/bin/

Migrating a system from CentOS6 to RHEL7 with SELinux running Enforced. A php script makes a call to /usr/bin/processdata.sh to generate some data behind the scenes. This worked fine with the old ...
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0answers
33 views

Warning: mysql_connect(): Host 'ip-X-X-X-X.ec2.internal' is blocked because of many connection errors

I'm using following system: $ cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.1 (Maipo) $ uname -a Linux ip-X-X-X-X.ec2.internal 3.10.0-229.14.1.el7.x86_64 #1 SMP Tue Aug 25 11:21:...
1
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1answer
86 views

cloud-init does not insert instance level ssh keys in gce

I am passing (YAML representation) metadata: items: - key: sshKeys value: root:ssh-rsa AAAAB... non@nan when creating a gcloud instance. But I cannot ssh to the instance $ ssh 139.242.197....
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0answers
88 views

Bootloader password - existing content found in /etc/grub.d/01_users

I need to set a bootloader password and am apprehensive about changing the existing config (per warning about potentially making a system unbootable). RH documentation says to add the following lines:...
4
votes
0answers
49 views

SELinux: manually changing files in /etc/selinux/targeted/contexts/files/

I'm setting up a CentOS 7 server in which the /home directory has to be located on another partition and then mounted with bind-mount. So: /data/homes should be bind-mounted to /home. The problem is ...
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0answers
19 views

ocredit ignored in PAM config

oscap is reporting that ocredit requirements are not being met. Current system-auth config: auth required pam_env.so auth sufficient pam_unix.so nullok try_first_pass auth ...
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0answers
48 views

Rhel 7 directory write permissions for both CLI and Apache user

I have been setting up a production environment for Symfony framework application on Red Hat Enterprise 7 Linux. I have an issue with enabling writing permissions to certain directories. In order to ...
2
votes
1answer
42 views

route table issue when I appended option net.ifnames=0 to grub2

I appended two options net.ifnames=0 biosdevname=0 to grub2 because I want to change default network name to old name eth0 on RHEL 7. After that, I edited /etc/sysconfig/network to set default ...
2
votes
1answer
129 views

RHEL on HP DL380 Gen9 boots to blank screen

I have an HP DL380 Gen9 server that I just installed RHEL 7.0 on. Yesterday I was able to log in and setup a few tools and users. Overnight I turned the server off. This morning when I boot the server ...
0
votes
1answer
10 views

Display RHEL 7.0 Server in Windows Explorer Network List

How can I get my RHEL to simply show up in the network list in Windows Explorer? I have joined my RHEL to my active directory domain successfully. I can also ping and telnet into the machine from any ...
3
votes
1answer
158 views

Possible to set the specific order of a resource in a Pacemaker group?

Given the Pacemaker/Corosync resource configuration described below, is it possible to add a resource in a specific position within the resource group? The configuration is CentOS 7.2 using the RHEL-...
2
votes
0answers
31 views

Force at to email effective user instead of logged in user

The at scheduler is emailing an unexpected user consistently on both old RHEL6 boxen and new OEL7 boxen when the jobs produce output or when the -m flag is used. If we log in to the box with our ...
3
votes
2answers
161 views

Cannot ssh to remote system after enabling IPSec

I have created two VMs on top of base OS and have enabled IPSec between the two VMs. Now the problem is as soon as IPsec starts and SA is established between the two VMs, I am not able to ping or ssh ...
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0answers
118 views

How to manage virtual ip addresses in RHEL 7

We currently have an alias assigned to our NIC for the purposes of managing a HA Proxy pair. # cat /etc/sysconfig/network-scripts/ifcfg-eth0:proxy DEVICE=eth0:proxy BOOTPROTO=none ONPARENT=no TYPE=...
2
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0answers
42 views

Setting bootloader password in EL7

Using this guide I am attempting to add a bootloader password to a CentOS7 install. When prompted, enter the password that was selected and insert the returned password hash into the ...