Difference between revisions of "16471 Grundlæggende programmering"

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#Kurset følger i første del video læringsmaterialet via [https://learning.oreilly.com/videos/introduction-to-python/9780135707333 denne link til Oreilly]
 
#Kurset følger i første del video læringsmaterialet via [https://learning.oreilly.com/videos/introduction-to-python/9780135707333 denne link til Oreilly]
 
#Materiale til øvelser i videomateriale via denne [https://github.com/ariannedee/intro-to-python-livelessons link til Github]
 
#Materiale til øvelser i videomateriale via denne [https://github.com/ariannedee/intro-to-python-livelessons link til Github]
 +
 +
=Overhøring=
 +
==Onsdag==
 +
*13:00 - Brian
 +
*13:15 - Mads
 +
*13:30 - Michael
 +
*13:45 - Esben
 +
==Torsdag==
 +
*08:00 - Karsten
 +
=Primtal opgave svar=
 +
*[[Media:Prime.zip|Prime.zip]]
  
 
=Python and networking=
 
=Python and networking=
 +
==Materials==
 +
*[https://learning.oreilly.com/videos/python-network-programming/9781838551957 Python Network Programming for Network Engineers (Python 3)]  (Oreilly Video based)
 +
** GNS3 see - Chapter 1 - part 2 to 6
 +
*** Link to: [https://mars.merhot.dk/data/sw/ios/c7200-adventerprisek9-mz.124-24_unZ.BIN Cisco 7200 IOS]
 +
**Chapter 3 - Telnet
 +
**Chapter 4 - SSH
 +
**Chapter 5 - NAPALM - Mutivendor automation API
 +
 
==Telnet==
 
==Telnet==
 
To use this module, you need to be able to telnet to one or more Cisco devices.
 
To use this module, you need to be able to telnet to one or more Cisco devices.
−
*[https://networksandrants.com/2018/10/24/using-python-and-telnet/ Using Python and Telnet]
+
 
 +
Example of basic setup for Telnet and SSH
 +
 
 +
<source lang=cli>
 +
hostname R1
 +
!
 +
username cisco password 0 cisco
 +
!
 +
ip domain-name merhot.dk
 +
!
 +
crypto key generate rsa general-keys modulus 1024
 +
!
 +
aaa new-model
 +
aaa authentication login default local
 +
aaa authentication login CONSOLE none
 +
aaa authorization exec default local
 +
aaa session-id common
 +
!
 +
enable secret cisco
 +
!
 +
interface Loopback0
 +
ip address 1.1.1.1 255.255.255.255
 +
!
 +
ip ssh time-out 60
 +
ip ssh authentication-retries 2
 +
ip ssh source-interface Loopback0
 +
ip ssh logging events
 +
!
 +
line vty 0 15
 +
transport input ssh telnet
 +
!
 +
line con 0
 +
login authentication CONSOLE
 +
</source>
 +
Python 3 telnet example
 +
<source lang=python>
 +
import getpass
 +
import sys
 +
import telnetlib
 +
host = "192.168.239.129"
 +
user = input("Username: ")
 +
password = input("Password: ")
 +
 
 +
tn = telnetlib.Telnet(host)
 +
tn.read_until(b"Username: ")
 +
tn.write(user.encode('ascii') + b"\n")
 +
if password:
 +
  tn.read_until(b"Password: ")
 +
  tn.write(password.encode('ascii') + b"\n")
 +
 
 +
tn.write(b"enable\n")
 +
tn.write(b"cisco\n")
 +
tn.write(b"conf t\n")
 +
tn.write(b"int loop 10\n")
 +
tn.write(b"ip address 1.1.1.1 255.255.255.255\n")
 +
tn.write(b"int loop 11\n")
 +
tn.write(b"ip address 1.1.1.2 255.255.255.255\n")
 +
tn.write(b"end\n")
 +
tn.write(b"exit\n")
 +
print(tn.read_all())
 +
</source>
 +
 
 
==SSH==
 
==SSH==
 
To use this module, you need to be able to ssh to one or more Cisco devices.
 
To use this module, you need to be able to ssh to one or more Cisco devices.

Latest revision as of 10:53, 8 April 2020

  1. Link til Google Hangout
  2. Vores facebookgruppe til at dele info via denne link - gruppen hedder Grundlæggende programmering - Python
  3. Kurset følger i første del video læringsmaterialet via denne link til Oreilly
  4. Materiale til øvelser i videomateriale via denne link til Github

Overhøring

Onsdag

  • 13:00 - Brian
  • 13:15 - Mads
  • 13:30 - Michael
  • 13:45 - Esben

Torsdag

  • 08:00 - Karsten

Primtal opgave svar

Python and networking

Materials

Telnet

To use this module, you need to be able to telnet to one or more Cisco devices.

Example of basic setup for Telnet and SSH 

hostname R1
!
username cisco password 0 cisco
!
ip domain-name merhot.dk
!
crypto key generate rsa general-keys modulus 1024
!
aaa new-model
aaa authentication login default local
aaa authentication login CONSOLE none
aaa authorization exec default local
aaa session-id common
!
enable secret cisco
!
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
!
ip ssh time-out 60
ip ssh authentication-retries 2
ip ssh source-interface Loopback0
ip ssh logging events
!
line vty 0 15
 transport input ssh telnet
!
line con 0
 login authentication CONSOLE

Python 3 telnet example 

import getpass
import sys
import telnetlib
host = "192.168.239.129"
user = input("Username: ")
password = input("Password: ") 

tn = telnetlib.Telnet(host)
tn.read_until(b"Username: ")
tn.write(user.encode('ascii') + b"\n")
if password:
  tn.read_until(b"Password: ")
  tn.write(password.encode('ascii') + b"\n")

tn.write(b"enable\n")
tn.write(b"cisco\n")
tn.write(b"conf t\n")
tn.write(b"int loop 10\n")
tn.write(b"ip address 1.1.1.1 255.255.255.255\n")
tn.write(b"int loop 11\n")
tn.write(b"ip address 1.1.1.2 255.255.255.255\n")
tn.write(b"end\n")
tn.write(b"exit\n")
print(tn.read_all())

SSH

To use this module, you need to be able to ssh to one or more Cisco devices.

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