OCF servers a very brief overview

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Presentation transcript:

OCF servers a very brief overview

The server rack

Three main physical servers jaws newest, fastest production servers and nfs pandemic dev/staging server software mirroring hal mega old staff VMs and backups

Three main physical servers blackhole fancy network switch

Three main physical servers see https://ocf.io/servers

OCF internet/networking border (and how to access OCF from outside)

ocf internet setup internet (IST) cisco firewall (owned by IST)

ethernet jack in our server room

ethernet jack in our server room

ethernet jack in our server room internet cisco firewall (owned by IST) ethernet jack in our server room

blackhole connected to internet everything connected to blackhole

all outbound traffic allowed* internet all outbound traffic allowed* *one exception: email (for spam reasons) desktops (computer lab) services (web, email, ...) login (ssh)

X all outbound traffic allowed* desktops (computer lab) services internet X some inbound allowed (ssh) no inbound allowed some inbound allowed desktops (computer lab) services (web, email, ...) login (ssh)

X what if I want to access a desktop or server remotely? desktops internet X desktops (computer lab) services (web, email, ...) login (ssh)

X bastions! what if I want to access a desktop or server remotely? internet bastions! X desktops (computer lab) services (web, email, ...) login (ssh)

bastions! first, connect via SSH to a login server desktops internet first, connect via SSH to a login server desktops (computer lab) login (ssh)

bastions! first, connect via SSH to a login server internet first, connect via SSH to a login server then, connect to anything else desktops (computer lab) login (ssh)

OCF has two login servers: tsunami public, all OCF users can access it no access to other OCF stuff supernova private, only OCF staff can access it full access to other OCF stuff

always connect to supernova first! first step: SSH to supernova from your machine

always connect to supernova first! second step: SSH to some other server from your laptop (e.g. anthrax)

always connect to supernova first! third step: do whatever!

X one thing we skipped... desktops (computer lab) services internet X desktops (computer lab) services (web, email, ...) login (ssh)

X hozers (your staff VMs!) desktops (computer lab) services internet hozers (your staff VMs!) X desktops (computer lab) services (web, email, ...) login (ssh)

X hozers (your staff VMs!) desktops (computer lab) services internet hozers (your staff VMs!) X desktops (computer lab) services (web, email, ...) login (ssh)

congrats! now you can log in to the OCF!