# Citrix VDA Installation

There is a [installation guide](https://docs.citrix.com/en-us/linux-virtual-delivery-agent/current-release/installation-overview/manual-installation-overview/redhat.html) by Citrix to install the Citrix VDA manually on Red Hat systems.

The following Hiera settings will bring the system into a state as requested in the installation guide:
```
# Citrix VDA specialities
hostname::short: true
networking::hostname_on_lo: true
aaa::sssd_cache_creds: false
aaa::default_krb_cache: "FILE:/tmp/krb5cc_%{literal('%')}{uid}"
```

Note that for `hostname -f` to work correctly with `hostname::short: true` you need to set as well `networking::hostname_on_lo: true` because `glibc getaddrinfo()` reads the first hostname in `/etc/hosts` to determine the fully qalified hostname.