Abstract :
The most important aspect of a network security system is to maintain data integrity
and ensure the availability of services that are used by users safely. All types of
attacks and attempts to abuse network resources by irresponsible parties must be
overcome in an effort to protect the network security system. As in the case that
occurred at Cafe Ready Stadium, it shows that network security at Café Ready
Jombang Stadium is still relatively low. Such as abusing an unhealthy network,
causing the entry of viruses into the ISP's Internet Service Provider, resulting in
unstable Internet Service Provider (ISP) lines. However, this can be overcome by
utilizing the block access method and bandwidth management. With the
Management Banwith it can limit every use of internet services and can be
configured on the MikroTik router software, where there are 2 different MikroTik
namely MikroTik RB951Ui-2HnD and MikroTik RB941-2nD. So that there will
be a significant difference between the two Mikrotik routers. Namely in terms of
capacity and processor of each router. Thus, the purpose of this study is to show the
difference between a combination of dividing internet access by providing
bandwidth to each user in the form of a hotspot and closing an internet access
permanently, so that only certain users cannot access the internet network.