Tuesday, September 15, 2026

C8000v : logging filtering with discriminator

When log in filled up with:

Sep 15 11:25:51.185 UTC: %SMART_LIC-2-PLATFORM_ERROR: Smart Licensing has encountered an internal software error. Contact TAC: The platform provided UDI list has invalid values: ; udi_sn is empty; udi_sn is null or empty for valid udi_pid

configure:

logging discriminator GO-AWAY facility drops SMART_LIC 

logging buffered discriminator GO-AWAY

logging console discriminator GO-AWAY

Tuesday, September 1, 2026

EVE-NG c8000v is slow in response

 

If the c8000v CLI is slow to reply or is acting sluggish, then go in the lab to "Status" and disable "KSM status"

Thursday, August 20, 2026

EVE-NG Export config

 username cisco priv 15 secret 15

line con 0

privilege level 15

EVE-NG upgrade/reinstall manually



export LANG=C.UTF-8

export LC_ALL=C.UTF-8

cd /root

cp /opt/unetlab/evedb.gz /root

apt-mark hold ifupdown

systemctl stop mysql

rm -f /var/lib/dpkg/lock

export TERM=xterm

apt-get --purge autoremove $(dpkg -l | grep 'mysql' | awk '{print $2}')

rm -rf /var/lib/mysql

rm -rf /etc/mysql

rm -rf /var/lib/apt/lists/*

apt update

apt install eve-ng-pro

If it cannot find the package, do:

https://gist.githubusercontent.com/nichham2/439feada8a2645f9627a2cdf246feba8/raw/ce67ab65aee8645e4f969bd7b65cd2435d41ce60/sources.list

put contents in /etc/apt/sources.list

Add 

deb [arch=amd64] http://www.eve-ng.net/jammy jammy main

to that file

apt clean
apt update
apt install eve-ng-pro
apt-mark unhold ifupdown
reboot
cd /opt/unetlab/
mv evedb.gz evedb.fresh
cp /root/evedb.gz /opt/unetlab/
unl_wrapper -a restoredb
reboot
dpkg -l eve-ng-pro


Friday, January 9, 2026

online video m3u8 download

 
Chrome -> dev tools -> network -> filter m3u8




Copy player.js m3u8 URL to VLC -> File -> Open Network -> Stream Output -> Settings


Name and mp4


Click OK and wait for timebar to complete.


Wednesday, January 7, 2026

Home Assistant Gree Versati III modbus ESP32

 

Versati III has an interface that communicates via the Modbus software protocol over RS-485 (physical layer standard). RS-485 can between -7 and +12V.

This needs to be converted to TTL, Transistor-Transistor Logic, which operates at low voltages. TTL can be read by ESP32 (not RS-485)


Based on 

https://github.com/peca2345/ESPHome-modbus-heatpump-Gree-Versati-III/blob/main/README.md

Wiring Diagram

Versati_Modbus----RS485--DollatekModule--TTL----ESP32


Hardware

ESP32 NodeMCU Module USB Type-C ESP32 Development Board Dual-Core 2.4GHz WiFi + Bluetooth CH340C for Arduino
https://www.amazon.com.be/dp/B0D8VN3J77?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Pinout
https://lastminuteengineers.com/esp32-pinout-reference/



Note that the pinout can be differently ordered.

DollaTek 5 x 5V MAX485 / RS485 TTL Module to RS-485 MCU Development Board



A & B are the connector for RS-485.
DI, DE, RE, RO are the connectors for TTL.

Good article explaining TTL-RS485




C8000v : logging filtering with discriminator

When log in filled up with: Sep 15 11:25:51.185 UTC: %SMART_LIC-2-PLATFORM_ERROR: Smart Licensing has encountered an internal software error...