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248 views

How does yum with Red Hat Network Subscription work inside the rhel Docker images?

Red Hat Enterprise Linux 7 includes official support for running Docker containers, and Red Hat offer a set of official rhel Docker images. An interesting feature of these images is that packages can ...
4
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0answers
52 views

Q: RHEL, SSSD, Active Directory

Good afternoon folks. I've been perusing various posts already about getting linux systems to authenticate using AD, but haven't seen anything approaching what I'm beating my head against. There's a ...
4
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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 ...
4
votes
0answers
1k views

RHEL 6.5 web application PAM AUTH pam_oddjob_mkhomedir

I've got a RHEL 6.5 that authenicates against an AD server, that side is working fine. The machine is also running a web application that uses a PAM module to authenticate. I copied login to make a ...
4
votes
0answers
735 views

Broadcom BCM57810 iSCSI offload performance

Anyone out there doing iSCSI offloading using Broadcom BCM57810 10 gigabit ethernet cards? My test scenario Network.... 2 x Dell Force 10 S4810 switches Client.... Dell R620 24 core 128gb memory ...
3
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0answers
82 views

Multiple passwordStorageScheme values on same user on 389ds / FreeIPA

I have deployed a FreeIPA identity solution which is backed inside by a 389 directory server. Due to the need of periodically syncing user passwords to another platform (Google Apps for Work), I need ...
2
votes
0answers
55 views

DHCP client not getting IPv4 address from a DHCP server

I configured a DHCP server on a VM in VirtualBox. This machine has 2 network adapters, enp0s3 - NAT (from where I have my network connection) and enp0s8 - Internal Network (intnet). DHCP server is ...
2
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0answers
26 views

How to interpret the contents of /lost+found after serious filesystem corruption?

I am trying to work out whether some serious filesystem corruption is recoverable or not - however, I am struggling to find a definitive description of what i am seeing in /lost+found anywhere on the ...
2
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0answers
17 views

security audit flags redhat/centos package version numbers despite patches

Redhat has this policy of backporting security fixes. But then when RHEL and CentOS sites get audited, the auditors invariably just list the package versions or ask ssh what it's version number is, ...
2
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0answers
62 views

RHEL 6.7 cache causing out of memory errors

I have a (large) system that has cache behavior that I don't understand. It seems that the cache ran the system out of memory. How is this possible? Doesn't the kernel clean up the cache when there'...
2
votes
0answers
15 views

Windows directories keeps getting unmounted on two identical Red Hat servers

Was refered here by the kind people at stack overflow. We have a pretty severe problem at my research center. I have, together with IT, set up an infrastructure like this: Users use their laptops at ...
2
votes
0answers
27 views

Can Satellite registration be done in Kickstart's `%pre` stanza?

In a presentation from 2010 RedHat Summit, I saw Satellite registration (rhnreg_ks) done in a %pre stanza, while RedHat's current docs (as well as this answer) do it in %post. Registering in %post ...
2
votes
0answers
32 views

How do I view a Rackspace backup circa 2013?

I was a Rackspace customer until 2013. When I shut down my server, I had them send me a backup of it on a hard drive. Recently I had someone ask for something on that server, so I got the hard drive ...
2
votes
0answers
313 views

qemu-img VHD to raw image convert results in bad geometry:

Is anyone else able to reproduce this? Using StarWind V2V Image Converter on Windows, I'm able to get a valid disk.img file, so the source image.vhd is clean (pulled down from rackspace). Is this a ...
2
votes
0answers
375 views

Usermod -aG vs gpasswd -a as a best practice

I am aware that usermod -g is not best practice from many posts like this however they normally explain the usermod should not be used as it changes the primary group of a user. These posts dont seem ...
2
votes
0answers
161 views

Many gettimeofday in Apache 2.4 + fcgid + centos 6.6 - Long Wait time for static files

When i perform a strace on apache process, i see many gettimeofday before & after GET request, even when Apache returns a static file like an image file. It results in a long downtime period ...
2
votes
0answers
2k views

CentOS kickstart automated setup with parted / RAID

I'm trying to use parted to partition my entire drives automatically during the CentOS kickstart install, however, I'm getting two issues with my install. I want to kickstart my installs across ...
2
votes
0answers
2k views

DHCP_HOSTNAME isn't working consistently in RedHat 7

Under RedHat/Centos 6.x I used DHCP_HOSTNAME=`hostname -s` in /etc/sysconfig/network-scripts/ifcfg-eth0 to pass client hostname to DHCP for registration in DNS and this worked flawlessly. I'm now ...
2
votes
0answers
75 views

PIV authentication on redhat

I'm looking for a solution, or set of technologies, (etc) - for setting up a mixed (win 7, rhel 6.5) network with centralized login using smart cards (PIV). I know that this is possible using a ...
2
votes
0answers
96 views

SNMPget and bash gives strange results (gauge32 values incorrect)

Reallly strange to me but here is the problem. If I use an SNMP client such as ManageEngineMibBrowser to query the appliance I get what look like reasonable Numbers: dpStatusMemoryStatusUsage.0 97 ...
2
votes
0answers
107 views

Lots and lots of kernel log entries: iint_free: readcount: -1, iint_free: writecount: 1

I am getting tons of log entries of the form Mar 2 00:44:10 SRV123 kernel: iint_free: readcount: -1 Mar 2 00:44:10 SRV123 kernel: iint_free: writecount: 1 Mar 2 00:44:10 SRV123 kernel: iint_free: ...
2
votes
0answers
3k views

Connecting to MSSQL server using sqlcmd and odbc driver on RHEL 6 fails

I spent the last hour trying to connect to a mssql server using sqlcmd through odbc driver. I was talking to the db guy but he doesn't seem to have a clue what is going on.. Maybe you can help me out ...
2
votes
0answers
60 views

Does the LVM DM UUID contain any metadata?

For example within the name listed below is there any metadata within the name, eg based on server serial number or date created or such: dm-uuid-LVM-...
2
votes
0answers
353 views

ZFS on RedHat configuration

I have to set up a ZFS storage appliance (Oracle ZFS Storage ZS3-2) with NFSv4. The NFS is mounted on a Redhat 6.5 cluster, where the linux users are created (they don`t exist on the appliance). ...
2
votes
0answers
318 views

Set Linux GID based on LDAP OU in ldap.conf

In our company we have a given LDAP Server, which represents the Users of our Windows Active Directory. Unfortunately the gidNumber sent to the LDAP client is always containing the Value "1001" for ...
2
votes
0answers
2k views

Completely remove and reinstall Foreman RHEL 6

I have a RHEL 6 host I inherited on which I need to install Foreman stable. It previously had Red Hat's OpenStack "Technology Preview", which relied on Puppet 2.5 and was not useful for permanent use. ...
2
votes
0answers
239 views

Redhat 6.4 configured to log Martian packets but is not logging ll header

I am trying to investigate the source of martian packets I have been seeing on several servers connected to the same subnet. The logging of martian packets has been enabled in /etc/sysctl.conf. ...
2
votes
0answers
4k views

NERR_DCNotFound when attempting to join Windows Server 2010 domain using PBIS

I have a RHEL 6.3 Amazon Web Service instance I'm trying to join to a Windows Server 2012 AD domain through PowerBroker Identity Services Open (ie: not enterprise). The Server 2012 instance is in the ...
2
votes
0answers
354 views

setup static route via dhcp

I try to push static routes over dhcp in a redhat enviroment. I have already activatet the option rfc3442-classless-static-routes. The dhcp client is also configured to request this optien as ...
2
votes
0answers
289 views

Phusion Passenger setting PassengerPreStart does not activate using service httpd start

I'm running Phusion Passenger on RHEL, hosting a Rails application. I can successfully start up a passenger instance on Apache startup using the Passenger setting PassengerPreStart, but only if I ...
1
vote
0answers
24 views

Configuring NTP server on a virtual machine and have it point to the physical machine

I have a virtual machine running on a physical machine, both using RHEL 7/CentOS 7. I need to configure the virtual machine to serve as an NTP Server and have this NTP server point to the physical ...
1
vote
0answers
29 views

How to Deploy Enterprise Applicatin on JBoss

I have been having the most difficult time deploying an enterprise application on Jboss. In my opinion Jboss is ridiculously un-intuitive and Impossible configure without extensive help. I am ...
1
vote
0answers
26 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/...
1
vote
0answers
21 views

Mount a Windows share on Linux boot without storing the password

Is there a way to do this? Most examples store the credentials in an external file to fstab e.g. - fstab: \\server\share /media/windowsmount cifs credentials=/root/secret.txt,_netdev,uid=root,gid=...
1
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0answers
15 views

How to Configure freeIPA to host external DNS Zone

Is it possible to use freeIPA DNS servers to host an external DNS zone that will resolve records for external clients without exposing the internal zones and records? I need to host SPF and DKIM ...
1
vote
0answers
22 views

ipSystemStatsOutDiscards increments, but not the interface specific counters?

Here's an odd one. I noticed that one of my nameservers was complaining about some outbound congestion, and that it seemed to correlate incrementing interface discards on my outbound path. Open and ...
1
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0answers
24 views

how to patch dev/test servers with production subscription ?

Our Organization has purchased Redhat platinum support subscription (5 years back),and using it for all Prod/Dev/test systems. The Recent Org change and our management decided not to pay platinum ...
1
vote
0answers
69 views

RHEL 6.5 in AWS, yum : Cannot retrieve repository metadata because of 404 Not Found

I have a RHEL 6.5 EC2 instance and yum is broken yum clean all $ yum clean all Loaded plugins: amazon-id, rhui-lb, security Cleaning repos: dag epel rhui-REGION-client-config-server-6 rhui-REGION-...
1
vote
0answers
23 views

socket_keepalive configuration for mod_jk

I have Apache httpd with mod_jk. I have issue with killed connections after long idling period: Apache stops to respond and each HTTP request hangs for 15 minutes. I tried turn off mod_jk connection ...
1
vote
0answers
79 views

Configuring OpenLDAP over TLS for RHEL/CentOS 6.5

i've been banging my head against the wall with something that seems to be a simple concept. I have two RHEL 6.5 servers. One will be acting as the OpenLDAP server, and one will be a client ...
1
vote
0answers
72 views

Cluster red hat add a default route , no RIP protocol is enabled

We have a couple of Red Hat Enterprise linux server with clustering uname -a: Linux deda-ora1 2.6.18-194.el5 #1 SMP Mon Mar 29 22:10:29 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux rpm -qf /etc/...
1
vote
0answers
26 views

WinSCP successfully uploads to a CIFS automount but fails on the final rename

One system has CIFS autofs home directories. I can upload files without issue but it seems to be failing on the final rename: But I can see the file uploaded, just with the .filepart extension: ...
1
vote
0answers
35 views

redhat satellite + downgrade procedure - how

I used the RHN - red-hat satellite version 5.x in order to install errata patch: ( on linux version 6.x ) glibc-2.12-1.166.el6_7.7.x86_64 while the curent patch on my linux was: glibc-devel-2....
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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:...
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vote
0answers
34 views

Network Kickstart RHEL 5 vs Kickstart RHEL 6, vmlinuz doesn't support nameservers?

I use PXE + kickstart in conjunction with Foreman, to install new hosts over the network. I've run into a problem while trying to install Red Hat 5. It looks like the older vmlinuz in RH5 does not ...
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0answers
106 views

How can I distinguish between SAN zoning and LUN assignment issues on RHEL6?

From Red Hat Enterprise Linux 6 how can I tell the difference between a SAN zoning problem (e.g. cannot reach the storage at all) versus a LUN masking issue (e.g. LUNs not assigned to the right HBA ...
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vote
0answers
121 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=...
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vote
0answers
102 views

Can't remove lock file in sysemd unit files

I'm having a really weird problem with systemd on RHEL7.The /run/puppetboot.lock file is not being removed at the end of execution for the unit file. Strangely, when I replace the 'puppet agent' lines ...
1
vote
0answers
319 views

Install yum module for Python 2.6

I am running a Red Hat Enterprise 5.11 Server and just installed Python 2.6 in addition to version 2.4, which is system default. Unfortunately, I don't have access to the yum module anymore which I ...
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vote
0answers
61 views

Putty connection refused until server login

Our Red hat main host reboots every night and when I try to connect with Putty I get connection refused. Then after I physically go to the server and login to it and go back to my other computer I am ...