Untuk melakukan ping ke blok ip bisa menggunakan ping atau fping. Untuk fping, opsi -g akan menghasilkan sebuah list target dari ip dan netmask yang diberikan atau ip awal dan akhir.
Perintah fping
Untuk nge-ping class C 192.168.1.0/24 gunakan perintah :
# fping -g 192.168.1.0/24
atau
# fping -g 192.168.1.0 192.168.1.255
Perintah ping
# for i in {1..254}; do ping -c1 192.168.1.$i; [...]
Penjelasan netcat yg di ambil dari man page :
netcat is a simple unix utility which reads and writes data across network connections, using TCP or UDP protocol. It is designed to be a reliable “back-end” tool that can be used directly or easily driven by other programs and scripts. At the same time, it is [...]
Ntop digunakan untuk mengambil informasi network dengan konfigurasi sederhana. Kita bisa menggunakan browser untuk melihat hasilnya baik berupa grafik atau statistik.
Install ntop
# apt-get install ntop
ICMP Bandwidth Tester (Ping Speed) digunakan untuk menganalisa throughput bandwidth maksimal yang dapat dicapai paket ICMP dari LAN Card ke host yang lain.
Selain itu, tool ini dapat dipakai untuk membantu memecahkan kemacetan pada jaringan.
Versi terbaru biasanya berisi pembenahan critical bug sehinga jika punya waktu luang sempatkan untuk update. Asumsikan sudah terinstall nagios dari source code yg sudah di download, jadi tinggal update ke versi terbaru saja.
Pastikan sudah memback-up instalasi nagios dan file-file konfigurasinya, jaga-jaga Jika ada sesuatu yg salah saat upgrade nanti kita masih punya back-up.
Knocker is a new, simple, and easy to use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them.
IPTraf is an ncurses-based IP LAN monitor that generates various network statistics including TCP info, UDP counts, ICMP and OSPF information, Ethernet load info, node stats, IP checksum errors, and others.
jNettop captures traffic comming across the host it is running on and displays streams sorted by bandwidth they use. Result is a nice listing of communication on network by host and port, how many bytes went through this transport and the bandwidth it is consuming.
Ipgrab is a network debugging utility not unlike tcpdump except that it prints out detailed header field information for data link, network and transport layers.
httping show you how long it takes to connect to a hostname or remote url; send a request and retrieve the reply (only the headers).
Ethstatus is a console-based monitoring utility for displaying statistical data of the ethernet interface on a quantity basis. It is similar to iptraf but is meant to run as a permanent console task to monitor the network load.
You can wake up WOL compliant Computers which have been powered down to sleep mode or start WOL compliant Computers with a BIOS feature.
WOL is an abbreviation for Wake-on-LAN. It is a standard that allows you to turn on a computer from another location over a network connection.
etherwake also supports WOL passwords.
