Poster

peripheral.find("modem", rednet.open)

write("Finding database server ID...")
rednet.broadcast("database", "dns-lookup")
_, body = rednet.receive("dns-record-database")
serverId = tonumber(body)
print(" Done!")

while true do
    write("Filename> ")
    local filename = read()
    write("Content> ")
    local content = read()
    rednet.send(serverId, filename..";"..content, "database-file-post")
end