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HD project: common network configuration debugging to assist in actual combat skills

©Lander Zhang focuses on on-demand IT infrastructure operation and maintenance services for foreign enterprises, and IT Helpdesk engineers train practitioners.

Blog: https://blog.51cto.com/lander

Practical training course for IT Helpdesk engineers: https://edu.51cto.com/lecturer/733218.html

Easy entry into foreign companies: the way for IT Helpdesk engineers to practice and self-study: https://blog.51cto.com/lander/2413018

Last updated: 2019-9-20

Direct course access: https://edu.51cto.com/course/19722.html

0. Course introduction

Why record this course: practical skills that IT Helpdesk engineers need to know or master when collaborating with network engineers

Features: systematic curriculum, which can be used as a tool document

1. General knowledge of Cisco Network equipment

1.1 Common debugging commands for Cisco router switches .note

1.2 Establishment of Console Access.note for debugging connection mode of Cisco router switch

1.3 Console+Putty.note for debugging connection modes of Cisco router switches

1.4 Console+CRL.note for debugging connection modes of Cisco router switches

1.5 telnet.note for routine maintenance of connection modes of Cisco router switches

1.6 TFTP server for debugging commonly used software on Cisco router switch.note

1.7 Wireshark.note for debugging common software on Cisco router switches

two。 Cisco switch

2.1 how do I reset the Cisco switch password while keeping the configuration unchanged? .note

2.2 how do I back up the IOS and configuration files of a Cisco switch? .note

2.3 how do Cisco switches revert to factory defaults or bare metal? .note

2.4How do I fill a Cisco switch with IOS images? .note

2.5 how do I restore the Cisco switch configuration file? .note

3. Cisco Router

3.1 how do I reset the Cisco router password and keep the configuration intact? .note

3.2 how do I back up the Cisco router IOS and configuration files? .note

3.3 how do I restore a Cisco router to factory defaults or bare metal? .note

3.4How do I fill a Cisco router with IOS on bare metal? .note

3.5 how do I restore the configuration file of a Cisco router? .note

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