Difference between revisions of "16471 Grundlæggende programmering"

From Teknologisk videncenter
Jump to: navigation, search
m (Telnet)
m
 
(5 intermediate revisions by the same user not shown)
Line 3: Line 3:
 
#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=
Line 15: Line 26:
 
==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
+
Example of basic setup for Telnet and SSH
  
 
<source lang=cli>
 
<source lang=cli>
enable password cisco
+
hostname R1
 
!
 
!
 
username cisco password 0 cisco
 
username cisco password 0 cisco
 +
!
 +
ip domain-name merhot.dk
 +
!
 +
crypto key generate rsa general-keys modulus 1024
 
!
 
!
 
aaa new-model
 
aaa new-model
aaa authentication login default local enable
+
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
 
line vty 0 15
  password cisco
+
  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>
 
</source>
  

Latest revision as of 11:53, 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.