It is possible to automatically get a Kerberos Ticket (kinit) generated everytime you login via SSH to a host by editing ".bash_profile". This also applies to a scenario wherin you are using Red Hat IDM/IPA and want to automate "kinit" instead of a user have to manually type in kinit everytime they login.
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When using IPA for managing user authentication you can come across this issue of SSH dropping just after a password change. It can be resolved by changing options in /etc/ssh/sshd_config. You need to be ROOT to make this change and restart SSHD service to take effect.
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This article shows you the steps to install Spacewalk 2.2 (aka Satellite) version on CentOS. To start with the install we need make sure that firewall and hostname and IP are configured correctly. Make sure that these ports are opened in the firewall.
Ports required:
Outbound open ports -- 80, 443, 4545
Inbound open ports -- 80, 443, 5222 and 5269, 69 udp if you want to use tftp (for kickstart PXE)
RAM requirements -- 2GB Minimum , 4GB Recommended
This article will be based on CentOS 6. There is a one click script as well in BASH SCRIPTS section.
Requirements:
Make sure the hostname ,static IP and host entry is setup properly.
There might be a need to Change SUDO LDAP password whilst managing the SUDO rights centrally through IDM. In this scenario it would be the 1st time you are configuring the SUDO rights. Follow the steps outlined to change the password for master server.
NOTE: Don't run this on replica instances of IDM as it would be replicated from Master.
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This article shows you How To register Spacewalk Clients to the Spacewalk Server. All you need is to make sure before the registration you are logged in as ROOT and the SSL Cert is downloaded from the server to the client host. There is a Once Click BASH SCRIPT as well you can download.
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