cmd :secret do |cfg|
    cfg.gsub! /^(snmp-server community).*/, '\\1 <configuration removed>'
    cfg.gsub! /username (\S+) privilege (\d+) (\S+).*/, '<secret hidden>'
    cfg.gsub! /^username \S+ password \d \S+/, '<secret hidden>'
    cfg.gsub! /^enable password \d \S+/, '<secret hidden>'