Mikrotik Tips

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Connecting 2 remote places using wireless bridge

Connecting 2 remote places using wireless bridge

point to multi-point, point to point, wireless
So, somebody asked me about a topic about "connecting 2 remote places using wireless bridge". so he has 2 rooms (or office) separated by a road, each location already has its own network, and then the plan is to connect them. as simple as that. lets make this process to be systematic and logical way. first of all, we need to gather requirements and current condition. here are the check lists: Current conditions both sites have computer network already running, and both network use network id of 10.0.0.0/24 both sites is separated by a road and the distance is around 30 meters both are located in second floor Requirements: to connect both sites using wireless connect using mikrotik devices if possible, donot change the current configuration max traffic between 2 sites can…
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Setup mikrotik bridge

Setup mikrotik bridge

bridge, layer 2
This article will give an example of how to setup mikrotik bridge on routerboard. this technique can be applied on mikrotik devices that has more than one interfaces. Before implementing this tutorial, make sure you understand how switch works. ok lets start. prerequisite Make sure feature bridge is supported on your routerOS your device has more than one interface routerboard is looks like a switch, why do we need to make a bridge? can we just plug a cable on and it works like ordinary switch? did you know that on each interface of your routerboard there is a MAC address associated with it? yes, on each port/interface. why on each port? because routerboard is basically a router, and router is connecting networks, and each interface will connect to a network,…
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Simplex, half-duplex, full-duplex

Simplex, half-duplex, full-duplex

tips
When we talk about communication, there are always 2 parties involved: TX (transmitter, the one who send signal/information) and RX (receiver, the one who receive signal/information). Simplex, half-duplex, full-duplex. In this article, we will be discussing about types of communication between TX and RX. they are: simplex, half-duplex, full-duplex. these terms are fundamental terminologies which network / telco engineers need to know. Between TX and RX there is a media that is used to deliver signal. channel could be physical or logical, could be wired or wireless. this media later on is called communication channel. Simplex means one way communication. this happens because the communication channel is only used by TX and RX is the passive side which only receive information. example: broadcast radio/tv, streaming. (more…)
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How packets travel over network by using Layer 2 and 3 information

How packets travel over network by using Layer 2 and 3 information

layer 2, Layer 3
How packets travel over network by using Layer 2 and 3 information. This is a class-based course about Networking. In this session we were discussing how packets travel on the network using layer 2 (data link) and layer 3 (network) information. We decided to explain the concept using simulation, asking a volunteer from students  to become a packet that travels over network. On his front, we put "headers" information (layer 2 and 3) so router can use that information to forward the packet to destination. (more…)
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apa itu ransomware

apa itu ransomware

malware, ransomware
Pada artikel sebelumnya, kita telah membahas apa itu malware. sekarang, kita akan bahas apa itu ransomware. apa itu ransomware? ware artinya perkakas, tools, devices, bisa berupa hardware atau software. ransom artinya tebusan. ransomware artinya software yang meminta tebusan? loh kok bisa minta tebusan / memeras korban? wah saya masih bingung... ada contoh kasusnya? komputer korban terinfeksi malware, dimana pengguna tidak sadar telah terinfeksi. karena baru, software antivirus pun tidak mengenali malware ini karena masih baru malware ini kemudian merajalela. menginfeksi ribuan komputer di seluruh dunia malware ini tidak bekerja secara independen, mereka dikontrol oleh sebuah server yang ada di internet. diam-diam dan terenkripsi, mereka mengirim data/informasi ke server pusat tentang komputer yang telah mereka jangkiti pada suatu hari, server memerintahkan malware tersebut untuk melakukan enkripsi terhadap harddisk korban, dengan key…
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Tips ujian Mikrotik MTCNA

Tips ujian Mikrotik MTCNA

MTCNA exam
Saya menggunakan mikrotik sejak tahun 2007, dimulai dari versi 2.9 yang diinstall via ISO image kemudian diburn ke CDROM untuk kemudian diinstall ke PC. Saya kemudian mengambil ujian sertifikasinya dan lulus dengan score yang lumayan (lihat gambar dibawah). Pada tulisan ini saya akan coba berbagi Tips ujian Mikrotik MTCNA. (more…)
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apa itu malware

apa itu malware

malware, security
Kita sudah pernah dengan hardware, software, brainware. tapi kemudian muncul istilah lain lagi seperti malware dan ransomware. apa itu malware / ransomware / xxxware ya? malware secara singkat adalah termasuk dalam software (perangkat lunak), aka. program komputer yang bertujuan untuk melakukan sesuatu yang buruk terhadap komputer kita. ware artinya perkakas / tool / devices. mal berasal dari kata malicious yang artinya membahayakan / merusak. contoh sesuatu yang buruk yang dilakukan malware? menginfeksi komputer kita sehingga komputer kita menjadi lambat memata-matai komputer kita (dikenal juga sebagai spyware), kemudian mengirim data ke server mereka memformat harddisk kita dll bagaimana malware bisa masuk ke komputer kita? melalui kelemahan dari sistem operasi kita. sistem operasi, tentu punya kelemahan-kelemahan (vulnerabilities) yang dapat dimanfaat penyerang untuk menjalankan aksinya. komputer terinfeksi malware biasanya karena berhubungan dengan komputer lain yang…
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Routing protocol vs routed protocol

Routing protocol vs routed protocol

Layer 3, routed protocol, routing protocol
Routing protocol vs routed protocol. Kebetulan lagi iseng baca artikel rekan saya tentang routing & routed protocol. kliatannya rekan saya ini lagi semangat-semangatnya belajar networking. Sebuah kritik positif terhadap artikel tersebut adalah kurang jelasnya mendefinisikan perbedaan fundamental antara routing protocol & routed protocol. bisa jadi juga karena kendala bahasa (english) dimana akan susah dimengerti jika ditranslate ke indonesian. so, saran saya, kalo belajar IT sebaiknya langsung dari bahasa aslinya. (more…)
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