Serial number check (warranty etc):
https://cway.cisco.com/sncheck/
Настройка ASA, да и вообще отличный сайт с мануалами
Практические руководства по начальной настройке:
https://pyatilistnik.org/kak-nastroit-kommutatoryi-cisco-3-urovnya-na-primere-cisco-3560/
https://pyatilistnik.org/kak-nastroit-marshrutizator-cisco-organizatsiya-seti-dlya-nebolshogo-ofisa/
https://pyatilistnik.org/staticheskaya-marshrutizatsiya-cisco/
WiFi blog:
Working with the flash file system:
Recursively delete non-empty folder from flash:
delete /force /recursive flash:FOLDERNAME
Passwords Security:
Cisco Device Security:
https://arny.ru/education/ccnp-enterprise/rasshirennaya-bezopasnost-cisco/
How to Reset Cisco Catalyst 3560 Back to Factory Defaults:
https://fatmin.com/2015/09/29/how-to-reset-cisco-catalyst-3560-back-to-factory-defaults
First you need to power down the switch. Once the switch is powered off, hold down the mode button, and power the switch on. The switch will boot up and you should see the switch prompt as shown below.
Now type flash_init. Your output should be similar to what you see below.
Check out the contents of flash and locate config.text and vlan.dat (if it exists).
Now delete the vlan.dat and config.text.
Reboot switch
Enter Rommon:
Push Ctrl and Break (use submenu in Putty) before the device start loading firmware.
Recover Catalyst Fixed Configuration Switches from a Corrupted Image:
https://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html
Show full config:
show run all
Cisco hardware and info short:
http://wiki.ciscolinux.co.uk/index.php/Cisco_1941_with_EHWIC-4G-LTE-G
Cisco EHWIC-4G-LTE info:
https://jakondo.ru/nastrojka-modulya-cisco-ehwic-4g-lte-g-na-rabotu-s-mobilnym-operatorom-yota/
Additional ACL Features:
https://etutorials.org/Networking/Router+firewall+security/Part+III+Nonstateful+Filtering+Technologies/Chapter+7.+Basic+Access+Lists/Additional+ACL+Features/