• https://realpython.com/python-sockets/
• https://www.pythonsheets.com/notes/python-socket.html
• https://steelkiwi.com/blog/working-tcp-sockets/

• https://wiki.python.org/moin/UdpCommunication
• https://pymotw.com/2/socket/udp.html
• http://www.binarytides.com/programming-udp-sockets-in-python/

• http://docs.python-requests.org/en/master/

• http://chimera.labs.oreilly.com/books/1230000000393/ch11.html

• https://wiki.python.org/moin/TcpCommunication
• SOCKET.RECV -- Three ways to turn it into RECVALL

• https://www.darknet.org.uk/2007/12/pcapy-python-interface-to-libpcap/
• https://www.coresecurity.com/corelabs-research/open-source-tools/impacket
• https://stackoverflow.com/questions/4948043/how-to-parse-packets-in-a-python-library?noredirect=1&lq=1

• https://pythonistac.wordpress.com/2017/03/09/python-network-packet-dissection-frameworks-shootout-scapy-vs-construct-vs-hachoir-vs-kaitai-struct/
• Scapy Einführung hier im Wiki

• https://github.com/pfa/python-ripv2/blob/master/ripserv.py
• https://github.com/puetsua/pyRIP/blob/master/pyrip.py
• https://github.com/svinota/pyroute2

• https://stackoverflow.com/questions/3632210/udp-client-and-server-with-twisted-python
• https://twistedmatrix.com/documents/10.2.0/core/howto/udp.html
• http://krondo.com/in-which-we-begin-at-the-beginning/
• https://steelkiwi.com/blog/working-tcp-sockets/ – using select

# connect to your Email-Server and send Hello Message (ehlo)
smtpObj = smtplib.SMTP('smtp.example.com', 587)
smtpObj.ehlo()
# start TLS encryption for security
smtpObj.starttls()
# login to the Email-Server with your own username/password
smtpObj.login('bob@example.com', 'PASSWORD')
# send Email from Bob to Alice. Email-Headers are text-fields on separate lines. 
# the Email-Body is separated by an empty line from the header. 
smtpObj.sendmail('bob@example.com', 'alice@example.com', 'Subject:Just a Test\nDate:20171208\nFrom:bob@example.com\n\nThis is a test-mail. Ignore!')
# disconnect from Mailserver
smtpObj.quit()

• http://www.admin-magazin.de/Das-Heft/2012/06/Paramiko-oeffnet-SSH-Verbindungen