Chapter 6 . Securing (Cheapest web hosting) Linux 239 Using Security
Chapter 6 . Securing Linux 239 Using Security Tools Linux Distributions If you suspect your computers or networks have been exploited, there are a wide range of security tools available for Linux you can use to scan for viruses, do forensics, or monitor activities of intruders. The best way to learn about and use many of these tools is by using dedicated, bootable Linux distributions built specifically for security. Refer to Chapter 18 for information on several bootable, security-oriented Linux distributions you can use to monitor and troubleshoot the security of your computer systems and networks. The chapter also includes various tools you can try out. Summary Securing your Linux system is something you need to do from the very beginning and continue as you use your Linux system. By implementing good security practices (such as practices described in the security checklist at the beginning of this chapter), you stand a better chance of keeping out intruders over the long haul. Going forward, you can help keep your Linux system secure by using encrypted network applications (such as ssh), monitoring log files, and adhering to good password techniques. If your Linux system is being used as a server, you need to take particular care in narrowing the access to the server and protecting data, using such tools as TCP wrappers (to limit who can use your server) and certificates (to ensure that both ends of communications with your Web server are authenticated). . . .
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