plembo

Want to configure UPnP on EdgeRouter-4?

Don't do it!

Introduction

As a former sysadmin that once helped ride herd over around 1,000 servers, of which around 10% were Internet-facing, I've never been a fan of autoconfiguation when it comes to punching holes through the firewall. I've seen the tripwire logs, and it's sobering.

The Problem

So enabling UPnP on my EdgeRouter-4 wasn't something I had on the roadmap, but when I ran into difficulty getting DLNA to work on the default VLAN, I thought it was worth looking into (never mind that, as I later learned, having UPnP turned on wasn't going make a bit of difference on my local network: another reason that mastering theory should always come before practice).

samwise4

# return 1 if alive, 0 if dead
ping_success() {
  ! ping -c1 -W1 8.8.8.8 >/dev/null 2>&1
}

# Spinner taken from https://stackoverflow.com/a/12498395
spinnerindex=0
spinner='-\|/'
sleepy_spinner() {
  for (( i=0; i<$(($1 * 2)); i++ ))

DaffyDuke

Omconfig Replace Member Virtual Disk:

omconfig storage vdisk action=replacememberdisk controller=1 vdisk=4 source=0:3 destination=0:5

Omconfig Prepare To Remove Physical Disk:

omconfig storage pdisk action=remove controller=1 pdisk=0:2:3

Tips

Passage RAID 0 en RAID 1 OMSA CLI
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