Archivo de la categoría: Security

How Cybercriminals Are Using Bitcoin’s Blockchain to Make Botnets Stronger Than Ever

https://gizmodo.com/how-cybercriminals-are-using-bitcoins-blockchain-to-mak-1848189767 Bitcoin’s blockchain appears to be the newest tool that cybercriminals are using to make their botnets incredibly resilient. ByLucas RopekToday 12:50PMComments (5)Alerts Last week, Google announced that it had partially disrupted the operations of a massive botnet—a gargantuan network of over one million malware-infected Windows computers. In the world of cybersecurity, that would be news on… Leer más »

What SREs Can Learn from Facebook’s Largest Outage

sauce: https://rootly.io/blog/what-sres-can-learn-from-facebook-s-largest-outage?utm_source=reddit&utm_medium=blog SRE (Site Reliability Engineer).- Is an engineer whose main role is maximizing the reliability of IT systems. Facebook’s October 2021 outage was the type of event that gives SREs nightmares: A series of critical business apps crashed in minutes and remained unavailable for hours, disrupting more than 3.5 billion users around the world and costing… Leer más »

uMatrix

uMatrix: Un cortafuegos matricial ajustable mediante clics, con varias herramientas para mejorar su privacidad. Excelente para bloquear subscripciones de noticias https://chrome.google.com/webstore/detail/umatrix/ogfcmafjalglgifnmanfmnieipoejdcf

fix java errors

No appropiate protocol (protocol is disabled or cipher suites are inappropriate) java version «1.8.0_261»Java(TM) SE Runtime Environment (build 1.8.0_261-b12)Java HotSpot(TM) Client VM (build 25.261-b12, mixed mode) FIX Disable: In $JRE/lib/security/java.security: Comment this lines: Certificates do not conform to algorithm constraints FIX Disable: In $JRE/lib/security/java.security: Comment this lines:

security

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security online

https://www.acunetix.com/vulnerability-scanner/online-scanner/ https://www.tenable.com/products/nessus/nessus-professional https://www.tenable.com/products/tenable-io/web-application-scanning

Linux: Find Out Which Process Is Listening Upon a Port

How do I find out running processes were associated with each open port? How do I find out what process has open tcp port 111 or udp port 7000 under Linux? You can the following programs to find out about port numbers and its associated process: netstat – a command-line tool that displays network connections, routing… Leer más »

Resize a Linux Root Partition Without Rebooting resize alienvault

Introduction A typical Linux server deployed from a ProfitBricks supplied image has a single storage volume, /dev/vda. If we take a look at that using fdisk we will see that the disk is divided into two partitions. The first one, /dev/vda1, is the boot partition where the OS resides. The second partition, /dev/vda2, is configured as swap space. root@debian:~# fdisk… Leer más »