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Security Block Lists

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  • Protect SSH from brute-force on any port

    Today I was interested in the survey whether it is necessary to move SSH to a nonstandard port. The survey is not as interesting as the way the author @zivot_je_cudo to protect SSH from brute-force password: after wrong connection attempts to block new attempts within 20 seconds. The delay apparently chosen empirically on the basis…

  • How to strengthen the protection of passwords of “12345” from brute-force attack

    Object: Web login form. Given task: to strengthen the protection of the user’s account from the selection of a simple password to his account, using a minimum of resources. What is the minimum of resources? It does not use a table-reference to block by IP-address and User-Agent. Do not use unnecessary requests to the system;…

  • Fraud Prevention with CleanTalk

    CleanTalk started to provide its database of IP addresses for banks, payment services, and the companies, evaluating the risk of fraud that strengthens the existing security system of the organization bringing it to a new level. Fraud can happen anywhere in the eCommerce world. It doesn’t matter if you’re running a small online business or…

  • Check domain for backlinks in spam comments/messages.

    We are pleased to announce the launch of check the availability of backlinks to domain in spam comments/messages. CleanTalk keeps track of the links in spam comments/messages; this will help you to learn about the incorrect SEO techniques in promoting the website and to maintain the reputation of the website. The presence of the domain…