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Networking Library

Networking Library

Emmy Awarding Winner,Chris Yates with Huddle Productions, offers his insight into using Social Media, FaceBook, Twitter and YouTube to market your business. Seminar presented by the DeSoto Chamber of Comemrce.

Includes index

Macintosh System 7 Networking Basics (Danish) DK-690-5708-A

 Kali Linux Basics For Hackers Getting Started With Networking,  Scripting, And Security In Kali

 Kali Linux Basics For Hackers Getting Started With Networking,  Scripting, And Security In Kali

A basic networking reference sheet.

A basic networking reference sheet.

Networking For Beginners The Complete Guide To Computer Network Basics Wireless Technology And Network Security

Summary: This show discusses basic principles of networks and how to send data using ONICS Series: Networking Source: http://hackerpublicradio.org/eps.php?id=2909 Original audio: http://archive.org/download/hpr2909/hpr2909_source.flac Theory In this episode I decided to take a slight diversion into networking fundamentals. As before, if you want to learn more about installing the ONICS tool suite, go back and listen to HPR 2882. There are three key concepts to understand about modern networks. They are: digital - the networks carry bits and bytes (binary digits) packet switched - devices break data into blobs of data called "packets" and take turns sending and receiving those packets to/from other devices attached to the network internetworked -- machines communicate using a protocol that allows traffic to traverse across multiple, independently-managed networks in a uniform way My Setup 2 laptops connected to a home wifi network that has Internet connectivity. Practicing sending data from a source machine to a destination machine. Both are running Linux. Source machine: Wifi interface: wlan0 Ethernet address: 00:22:fa:a7:69:90 IP address: 192.168.0.4 Destination machine Wifi interface: wlo1 Ethernet address: 6c:88:14:7c:2e:14 IP address: 192.168.0.248 Internet Router: Ethernet address: 00:0d:b9:23:f2:51 IP address: 192.168.0.1 More Terminology Address - a number that identifies a machine's interface in a network Packet - a blob of binary data sent as a unit over a network Route - a rule that specifies how to forward traffic to a given address Router / Gateway - a machine that uses the IP protocol and forwards traffic between multiple networks that it connects to Network Protocol - a set of rules and data formats for exchanging information over a network Standard UNIX Commands ifconfig (no arguments or '-a') list interfaces on a machine ifconfig IFNAME list properites about a given interface ping -c 1 IPADDRESS send an echo request to machine IPADDRESS arp -na Dump the Ethernet addresses of known nearby machines netstat -nr Dump the routes in a system netstat -nr | grep "^0.0.0.0" Find the route (and thus IP address) of the default gateway ONICS Commands in this Episode rawpkt - take a blob of data and wrap it in an XPKT format (so other ONICS tools can understand what it is) ethwrap - take an XPKT and prepend an Ethernet header to it ipwrap - take an XPKT and prepend an IP header to it pktin - read a stream of packets from a network interface pflt - filter a stream of packets so that only those matching a pattern get through pktout - send a stream of packets to a network interface x2hpkt - convert XPKTs into a hex dump xpktdump - like x2hpkt, but send the output to a pager like 'less' for easy reading Sending an Ethernet Packet to the Destination On the receiver: $ sudo pktin wlo1 | pflt "not ip and eth.dst == 6c:88:14:7c:2e:14" | x2hpkt On the sender: $ echo "hello world" | rawpkt | ethwrap "eth.dst = 6c:88:14:7c:2e:14; " "eth.src = 00:22:fa:a7:69:90; " "eth.ethtype = 12;" | sudo pktout wlan0 Note that while I broke up the field setting commands into multiple lines in ethwrap, they can all be part of a single quoted string if desired. To store the packet to a file rather than send it instead do something $ echo ... | rawpkt | ethwrap ... > outfile.xpkt One can then dump the packet by running: $ xpktdump outfile.xpkt or send the packet by running: $ sudo pktout outfile.xpkt wlan0 Sending an IP Packet to the Destination over the Local Network On the reciever: $ sudo pktin wlo1 | pflt "ip and ip.proto == 255" | x2hpkt On the sender: $ echo "hello world" | rawpkt | ipwrap "ip.saddr = 192.168.0.4;" "ip.daddr = 192.168.0.248;" "ip.len = 32;" "ip.ttl = 64;" "ip.proto = 255;" | ethwrap "eth.dst = 6c:88:14:7c:2e:14; " "eth.src = 00:22:fa:a7:69:90; " "eth.ethtype = 0x800;" | sudo pktout wlan0 Note that while I broke up the field setting commands into multiple lines in ipwrap and ethwrap, they can all be part of a single quoted string if desired. Also note that it is not actually necessary to set the 'ip.len' and 'eth.ethtype' fields: the tools will do that automatically. Sending an IP Packet to the Destination via IP On the receiver: $ sudo pktin wlo1 | pflt "ip and ip.proto == 255" | x2hpkt One the sender: $ echo "hello world" | rawpkt | ipwrap "ip.saddr = 192.168.0.4;" "ip.daddr = 192.168.0.248;" "ip.ttl = 64;" "ip.proto = 255;" | ethwrap "eth.dst = 00:0d:b9:23:f2:51; " "eth.src = 00:22:fa:a7:69:90; " | sudo pktout wlan0 Challenge There are several differences between the packets that arrive at the destination machine when sending directly over the local network versus sending via an IP gateway (router). I've mentioned how the Ethernet header is different. Can you find the other differences? What causes these differences? TIP: instead of sending the pktin command to x2hpkt, send it to a file. Do this for both local network send and for sending via the router saving each to different files. Then run pdiff on the two files to highlight the differences.

Summary: This show discusses basic principles of networks and how to send data using ONICS Series: Networking Source: http://hackerpublicradio.org/eps.php?id=2909 Original audio: http://archive.org/download/hpr2909/hpr2909_source.flac Theory In this episode I decided to take a slight diversion into networking fundamentals. As before, if you want to learn more about installing the ONICS tool suite, go back and listen to HPR 2882. There are three key concepts to understand about modern networks. They are: digital - the networks carry bits and bytes (binary digits) packet switched - devices break data into blobs of data called "packets" and take turns sending and receiving those packets to/from other devices attached to the network internetworked -- machines communicate using a protocol that allows traffic to traverse across multiple, independently-managed networks in a uniform way My Setup 2 laptops connected to a home wifi network that has Internet connectivity. Practicing sending data from a source machine to a destination machine. Both are running Linux. Source machine: Wifi interface: wlan0 Ethernet address: 00:22:fa:a7:69:90 IP address: 192.168.0.4 Destination machine Wifi interface: wlo1 Ethernet address: 6c:88:14:7c:2e:14 IP address: 192.168.0.248 Internet Router: Ethernet address: 00:0d:b9:23:f2:51 IP address: 192.168.0.1 More Terminology Address - a number that identifies a machine's interface in a network Packet - a blob of binary data sent as a unit over a network Route - a rule that specifies how to forward traffic to a given address Router / Gateway - a machine that uses the IP protocol and forwards traffic between multiple networks that it connects to Network Protocol - a set of rules and data formats for exchanging information over a network Standard UNIX Commands ifconfig (no arguments or '-a') list interfaces on a machine ifconfig IFNAME list properites about a given interface ping -c 1 IPADDRESS send an echo request to machine IPADDRESS arp -na Dump the Ethernet addresses of known nearby machines netstat -nr Dump the routes in a system netstat -nr | grep "^0.0.0.0" Find the route (and thus IP address) of the default gateway ONICS Commands in this Episode rawpkt - take a blob of data and wrap it in an XPKT format (so other ONICS tools can understand what it is) ethwrap - take an XPKT and prepend an Ethernet header to it ipwrap - take an XPKT and prepend an IP header to it pktin - read a stream of packets from a network interface pflt - filter a stream of packets so that only those matching a pattern get through pktout - send a stream of packets to a network interface x2hpkt - convert XPKTs into a hex dump xpktdump - like x2hpkt, but send the output to a pager like 'less' for easy reading Sending an Ethernet Packet to the Destination On the receiver: $ sudo pktin wlo1 | pflt "not ip and eth.dst == 6c:88:14:7c:2e:14" | x2hpkt On the sender: $ echo "hello world" | rawpkt | ethwrap "eth.dst = 6c:88:14:7c:2e:14; " "eth.src = 00:22:fa:a7:69:90; " "eth.ethtype = 12;" | sudo pktout wlan0 Note that while I broke up the field setting commands into multiple lines in ethwrap, they can all be part of a single quoted string if desired. To store the packet to a file rather than send it instead do something $ echo ... | rawpkt | ethwrap ... > outfile.xpkt One can then dump the packet by running: $ xpktdump outfile.xpkt or send the packet by running: $ sudo pktout outfile.xpkt wlan0 Sending an IP Packet to the Destination over the Local Network On the reciever: $ sudo pktin wlo1 | pflt "ip and ip.proto == 255" | x2hpkt On the sender: $ echo "hello world" | rawpkt | ipwrap "ip.saddr = 192.168.0.4;" "ip.daddr = 192.168.0.248;" "ip.len = 32;" "ip.ttl = 64;" "ip.proto = 255;" | ethwrap "eth.dst = 6c:88:14:7c:2e:14; " "eth.src = 00:22:fa:a7:69:90; " "eth.ethtype = 0x800;" | sudo pktout wlan0 Note that while I broke up the field setting commands into multiple lines in ipwrap and ethwrap, they can all be part of a single quoted string if desired. Also note that it is not actually necessary to set the 'ip.len' and 'eth.ethtype' fields: the tools will do that automatically. Sending an IP Packet to the Destination via IP On the receiver: $ sudo pktin wlo1 | pflt "ip and ip.proto == 255" | x2hpkt One the sender: $ echo "hello world" | rawpkt | ipwrap "ip.saddr = 192.168.0.4;" "ip.daddr = 192.168.0.248;" "ip.ttl = 64;" "ip.proto = 255;" | ethwrap "eth.dst = 00:0d:b9:23:f2:51; " "eth.src = 00:22:fa:a7:69:90; " | sudo pktout wlan0 Challenge There are several differences between the packets that arrive at the destination machine when sending directly over the local network versus sending via an IP gateway (router). I've mentioned how the Ethernet header is different. Can you find the other differences? What causes these differences? TIP: instead of sending the pktin command to x2hpkt, send it to a file. Do this for both local network send and for sending via the router saving each to different files. Then run pdiff on the two files to highlight the differences.

1. Network   & Internet Architecture 2. Protocol Layers (Application, Transport, Network and routing, Data Link, Physical) 3. Network Application 4. Network Security 5. Network Management

1. Network   & Internet Architecture 2. Protocol Layers (Application, Transport, Network and routing, Data Link, Physical) 3. Network Application 4. Network Security 5. Network Management

1. Network   & Internet Architecture 2. Protocol Layers (Application, Transport, Network and routing, Data Link, Physical) 3. Network Application 4. Network Security 5. Network Management

This video shows the basics of Cisco IOS network configurations. As well as explaining the concepts behind them.

2003, Cisco Systems, Inc. CCNA 1: Networking Basics. v 2.1.4. Student Lab Manual CCNA 2: Routers and Routing Basics. v 2.1.4. Student Lab Manual CCNA 4: WAN Technologies. v 2.1.4. Student Lab Manual

In this episode: a basic, general overview of wireless networking in Linux, with mentions of the Intel wireless firmware, MadWifi , WPA Supplicant , NdisWrapper , and more; several audio Listener Tips, one on using an iPod with Amarok, and two regarding ssh and vnc; audio feedback.

Summary: Klaatu covers IP (Internet Protocol) Series: Networking Source: http://hackerpublicradio.org/eps.php?id=0414 Klaatu goes over IP (Internet Protocol), its header information, the mechanics of datagram fragmentation, and RFC 791 in general. see also RFC 791 iana protocol number assignments Listen to this episode in ogg.

A book on basic linux hacks

Summary: A SAMBA howto from klaatu Series: Networking Source: http://hackerpublicradio.org/eps.php?id=1121 Klaatu continues his Networking Basics series with a SAMBA howto. http://samba.org

Summary: The third episode of Basic Networking Series: Networking Source: http://hackerpublicradio.org/eps.php?id=0363 In the third episode of Basic Networking, Klaatu talks about all things Ethernet; from the physical construction of the cables to the structure of the data frames being sent over them. As usual, an ogg version is available over on the bad apples .

Summary: Klaatu presents his fourth episode on networking basics--covering the UDP and TCP protocols Source: http://hackerpublicradio.org/eps.php?id=0394 Klaatu continues his Network Basics series. This episode covers TCP and UDP. You can download the ogg version of this episode, or if you are using Firefox 3.5 then you can just listen to it right in your browser, by clicking here.