TELNET is an unsecure protocol that enables remote terminal connections by establishing virtual terminal sessions. It uses cleartext for authentication, allowing passwords to be easily sniffed. SSH was created as a secure replacement for TELNET and other insecure protocols, providing encryption, integrity checks, and authentication to prevent sniffing of passwords and data on untrusted networks.
Telnet and SSH configuration on ubuntu and windows. this presentation show how we can configure telnet and ssh on windows and linux and what additional software we will have to required.
Protocols And IP suite PPT
Contents are
History
TCP/IP Suite Layer
a} Network Interface
b} Internet Layer
c} Transport Layer
d} Application Layer
3.Comparison of OSI and IP
Telnet and SSH configuration on ubuntu and windows. this presentation show how we can configure telnet and ssh on windows and linux and what additional software we will have to required.
Protocols And IP suite PPT
Contents are
History
TCP/IP Suite Layer
a} Network Interface
b} Internet Layer
c} Transport Layer
d} Application Layer
3.Comparison of OSI and IP
This presentation outlines the core functions of TCP - Transmission Control Protocol.
These comprise TCP Connection Control, TCP Flow Control, TCP Error Control, TCP Congestion Control, TCP Options and TCP Timers.
TCP/IP is the Internet core protocol that provides reliable, connection-oriented and stream-based communication service. Most of Internet traffic is carried in TCP connections, so scalability and reliability are crucial for a stable network on a global scale.
This presentation outlines the core functions of TCP - Transmission Control Protocol.
These comprise TCP Connection Control, TCP Flow Control, TCP Error Control, TCP Congestion Control, TCP Options and TCP Timers.
TCP/IP is the Internet core protocol that provides reliable, connection-oriented and stream-based communication service. Most of Internet traffic is carried in TCP connections, so scalability and reliability are crucial for a stable network on a global scale.
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I have tried my best to describe Samba Server through this PPT. I hope you guys will love this and this ppt will be helpful for you all.
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Overview of the FTP protocol.
In the early days of the Internet, applications were mostly restricted to mail transfer (email) and file transfer. FTP (File Transfer Protocol) is one of the first standardized protocols for exchanging binary and text files between hosts.
FTP is rather simple in that it uses a TCP connection for exchanging commands and a data transfer TCP connection for the actual file transfer.
In normal FTP operation, the client opens the control connection to the FTP server while it is up to the server to open data connections for each file transfer. With the upcoming firewalls, this scheme proved to pose a problem since firewalls tend to block incoming TCP connections. Thus a passive mode was defined where the client is responsible to open the data connection to the server.
XMPP and SIP Presence Protocols for Messaging and Session Control.pptxGSCWU
XMPP is the Extensible Messaging and Presence Protocol, a set of open technologies for instant messaging, presence, multi-party chat, voice and video calls, collaboration, lightweight middleware, content syndication, and generalized routing of XML data.
XMPP was originally developed in the Jabber open-source community to provide an open, decentralized alternative to the closed instant messaging services at that time
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The Internet Protocol Suite (commonly known as TCP/IP) M Shamim Iqbal
The Internet Protocol Suite (commonly known as TCP/IP) is the set of communications protocols used for the Internet and other similar networks.
It is named from two of the most important protocols in it:
the Transmission Control Protocol (TCP) and
the Internet Protocol (IP), which were the first two networking protocols defined in this standard.
Standard Client / Server Protocols: Worldwide- web and HTTP,FTP, Electronic mail, Telnet, Secured Shell, Domain name system. Application layer: DNS: Name space – domain name space – distribution of name space Electronic mail Architecture – FILE transfer: FTP WWW and HTTP: Architecture – web documents – HTTP Network Security: Introduction - definitions – two categories - symmetric key cryptography – traditional ciphers – asymmetric key cryptography
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
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A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. 1. TELNET (Terminal Network)
• TELNET is an abbreviation for TErminaL NETwork.
• Is an application layer protocol used on the internet or local
area networks, enables the establishment of a
connection to a remote system in such a way that the
local terminal appears to be a terminal at the remote
system.
• It is the standard TCP/IP protocol for virtual terminal
service
3. Topics to be Discussed
• Understand how TELNET works
• Understand the role of NVT in a TELNET communication
• Understand TELNET option and sub-option negotiation
• Know how control characters are used
• Know the TELNET modes of operation
• Why TELNET unsecure!
4. TELNET is a general-purpose
client-server application program
8. Network Virtual Terminal (NVT)
• Is a universal interface, The TELNET client translates characters (data
or commands) that come from the local terminal into NVT form and
delivers them to the network. The TELNET server translates data and
commands from NVT form into the form acceptable by the remote
computer. Figure 1.3 concept of NVT
9. NVT uses two sets of characters, one for data and
one for control. Both are 8-bits.
Figure 1.5 format of data and control characters
12. Default Mode
• In this example, we use the default mode to show the concept
and its deficiencies even though it is almost obsolete today.
• The client and the server negotiate the terminal type and
terminal speed and then the server checks the login and
password of the user (see figure 1.6).
14. Character Mode
•We show how the client switches to the character
mode. This requires that the client request the
server to enable the SUPPRESS GO AHEAD
and ECHO options (see
Figure 1.7).
16. Line Mode
• It’s proposed to compensate for the deficiencies of
default mode and character mode
• In this line (echoing) in done by the client, then the
client sends the whole line to the server
17. Why TELNET Unsecure?!
TELNET suffers from security problems. TELNET requires a login
name and password (when exchanging text). A microcomputer
connected to a broadcast LAN can easily spy using snooper software
to capture a login name and the corresponding password (even if it is
encrypted).!!
It’s Big problem
Let’s see how to hacking ;)
22. 2. SSH
• Is a protocol for secure remote login and other secure
network services over an unsecure network.
• Secure channel between two computers
• Provides data confidentiality and integrity
• Many uses other than remote shell
23. Topics to be Discussed
• History
• SSH components
• Why using SSH?
• SSH security features
• SSH Authentication Methods
• Port forwarding
24. History
• SSH-1 designed in 1995 by Tatu Ylönen
• In response to a password-sniffing attack
• Replacement for rlogin, telnet, and rsh
• Released as freeware in July 1995
• SSH-2 designed in 1996
• Incompatible with SSH-1
• Security and feature improvements
• Open source implementations (OSSH and OpenSSH) created in 1999
• OSSH is now obsolete
• OpenSSH is the most popular SSH implementation as of 2005
25. SSH Components
•Transport Layer Protocol
•Provides server authentication, confidentiality, and
integrity
•User Authentication Protocol
•Authenticates the client-side user to the server
•Connection Protocol
•Multiplexes the tunnel into logical channels
29. Why using SSH?
•SSH can handle secure remote logins (SSH)
•SSH can handle secure file copy (SCP)
•SSH can even drive secure FTP (sFTP)
30. SSH security features
• strong algorithms
• uses well established strong algorithms for encryption, integrity, key
exchange, and public key management
• large key size
• requires encryption to be used with at least 128 bit keys
• supports larger keys too
• algorithm negotiation
• encryption, integrity, key exchange, and public key algorithms are negotiated
• it is easy to switch to some other algorithm without modifying the base
protocol