Fork-lifting legacy monitoring systems and migrating to the cloud

Within data centres and telecommunications points of presence, many legacy monitoring solutions exist. The architecture is typically rack mounted hardware that has wired sensors or probes. The hardware has a built-in web server and in most cases also a text based cli. The connectivity is typically via an internal Ethernet network and optionally out of band connectivity via a GSM modem. The user is required to connect out of band to the web server or cli on the hardware. This connection entails an incoming session over the modem that requires approval from the service provider. The service provider usually discourages these type of connections due to hacking. Additionally, the network address of the hardware needs to be associated with a name resolution system and often this is a dynamic DNS type service. This architecture is the basis for many types of botnet attacks.

Read the article over at LinkedIn here.

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easywall - Web interface for easy use of the IPTables firewall on Linux systems written in Python3.

Firewalls are becoming increasingly important in today’s world. Hackers and automated scripts are constantly trying to invade your system and use it for Bitcoin mining, botnets or other things. To prevent these attacks, you can use a firewall on your system. IPTables is the strongest firewall in Linux because it can filter packets in the kernel before they reach the application. Using IPTables is not very easy for Linux beginners. We have created easywall - the simple IPTables web interface . The focus of the software is on easy installation and use. Access this neat software over on github: easywall

No Scrubs: The Architecture That Made Unmetered Mitigation Possible

When building a DDoS mitigation service it’s incredibly tempting to think that the solution is scrubbing centers or scrubbing servers. I, too, thought that was a good idea in the beginning, but experience has shown that there are serious pitfalls to this approach. Read the post of at Cloudflare's blog: N o Scrubs: The Architecture That Made Unmetered Mitigation Possible

Thinking problem management!

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