dbasch's questions

I am researching installing JIRA, and the rest of the Atlassian Suite, onto an Ubuntu 12.04 server.

It appears that not long ago everyone recommended installing JIRA manually. This was due to lots of configuration problems and bugs related to Java 7.

I found a manual installation guide, but I would prefer to be lazy and have the install automated.

Ubuntu 12.04 /12.10 Ultimate Atlassian Production Server : Crowd + JIRA + Confluence + Stash + Fisheye | Single Sign On (SSO) | Fully Integrated | PostgreSQL ( pgSQL ) + Oracle Java 1.7( JDK 7 ) + Apache2 + SSL ( https ) + SNI (Shared SSL) + PROXY_AJP ( ajp ) + Optimised

Does the default JIRA installer for linux work well?

Is there a reason to manually install JIRA?

I am setting up an Ubuntu server hosted by Linode.

I am stepping through their security guide and they recommend installing fail2ban after disabling password based SSH logins.

I don't see the point in installing fail2ban if dictionary attacks are not possible with SSH keys.

Am I missing something here?

I host multiple domains on a single IP address:

cats.com 
A @ --> 10.20.30.40
A mail --> 10.20.30.40
MX @ --> mail

dogs.com
A @ --> 10.20.30.40
A mail --> 10.20.30.40
MX @ --> mail

I need to set up a PTR record for the IP address. This is so that forward-confirmed reverse DNS will succeed for other mail servers.

DNS query type PTR on 10.20.30.40 --> returns PTR-record="cats.com" (1 result)
DNS query type A on "cats.com" --> returns A-record=10.20.30.40 (1 result)

If I can only have one PTR record for my IP, that points to cats.com, how will FCrDNS ever succeed for dogs.com?

Can I just use the domain name they both share (80.70.60.50.static.host.net) in the PTR ?

Thanks!