public static String getStatus() {
        StringBuilder ret = new StringBuilder();
        int totalUsers = 0;
        for (ChannelServer cs : ChannelServer.getAllInstances()) {
            ret.append("Channel ");
            ret.append(cs.getChannel());
            ret.append(": ");
            int channelUsers = cs.getConnectedClients();
            totalUsers += channelUsers;
            ret.append(channelUsers);
            ret.append(" users\n");
        }
        ret.append("Total users online: ");
        ret.append(totalUsers);
        ret.append("\n");
        return ret.toString();
    }