[Flask backend] record a cross domain experience of sadness
For the first time, the Python back-end interface was sent to the front-end after the Postman test. The front-end worked for a long time and said it was a cross domain problem. I wondered why the web page didn't work when Postman could pass. Was there a problem with the front-end code? The front-end boss explained that the Postman test could no ...
Added by tonbah on Wed, 02 Mar 2022 13:43:40 +0200
Ethereum development strategy 7: Ethereum programming interface Web3 JS API: call contract
Ethereum development strategy 1: preparation part I: installation of various related tools and environment configuration Ethereum Development Strategy II: preparation Part II: Compilation and installation of Ethereum Ethereum development strategy 3: building Ethereum private chain (Mining Based on ethash consensus) Ethereum development strategy ...
Added by dai.hop on Sun, 20 Feb 2022 02:58:54 +0200
The Ethernet node RPC port is open to the network security configuration being attacked
Ethereum supports RPC mode. When this mode is enabled, the Ethereum account can automatically complete some operations, such as automatic transfer to the wallet after digging out coins in the mine pool. Attackers mainly use RPC open ports, so they can protect themselves by limiting RPC ports.
1, The following main attack methods are analyz ...
Added by uatec on Mon, 25 Oct 2021 10:05:28 +0300