By Michel Bisson

Show description

Read or Download Linux Network Security Course PDF

Similar network security books

IPSec (2nd Edition)

IPSec, moment version is the main authoritative, entire, obtainable, and up to date advisor to IPSec expertise. top gurus hide all elements of IPSec structure, implementation, and deployment; evaluate vital technical advances for the reason that IPSec used to be first standardized; and current new case reviews demonstrating end-to-end IPSec defense.

A Survey of Data Leakage Detection and Prevention Solutions

SpringerBriefs current concise summaries of state of the art learn and sensible functions throughout a large spectrum of fields. that includes compact volumes of fifty to a hundred pages (approximately 20,000- 40,000 words), the sequence covers a variety of content material from expert to educational. Briefs let authors to provide their principles and readers to soak up them with minimum time funding.

Unified Communications Forensics. Anatomy of Common UC Attacks

Unified Communications Forensics: Anatomy of universal UC assaults is the 1st ebook to give an explanation for the problems and vulnerabilities and exhibit the assaults, forensic artifacts, and countermeasures required to set up a safe (UC) atmosphere. This ebook is written by way of prime UC specialists Nicholas provide and Joseph W.

CCSP Self-Study CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide

Community protection is a truly advanced enterprise. The Cisco graphics Firewall plays a few very particular capabilities as a part of the safety approach. it is important to to be acquainted with many networking and community defense strategies ahead of you adopt the CSPFA certification. This ebook is designed for safety pros or networking pros who're attracted to starting the safety certification technique.

Extra info for Linux Network Security Course

Sample text

2007 Michel Bisson # run the mailqueue /usr/sbin/sendmail -q Also make a cronjob that runs every now and then to flush the queue: ----------------------# run queue every 5 minutes */5 * * * * root test -x /usr/sbin/sendmail # && \ nice -n10 /usr/sbin/sendmail -q ----------------------That's it. Mail should now be queued until it can be delivered via your own mail server. ----------------------------------------------------------------For security, though, you don't want to let people log in to your OpenSSH server as you without a passphrase.

To achieve this, the deny rule must be declared first. delay_access 1 deny special_hosts delay_access 1 allow intranets This above examples are some of the most useful configurations I've found so far. x explains in more details the different possibilities. conf # DELAY POOL PARAMETERS (all require DELAY_POOLS compilation option) #--------------------------------------------------------------------# TAG: delay_pools # This represents the number of delay pools to be used. For example, # if you have one class 2 delay pool and one class 3 delays pool, you # have a total of 2 delay pools.

IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 23 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­sport 23 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 22 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­sport 22 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 20 ­j TOS ­­set­tos \ Maximize­Throughput ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­sport 20 ­j TOS ­­set­tos \ Maximize­Throughput ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 21 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p udp ­­dport 53 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 53 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 25 ­j TOS ­­set­tos Minimize­Cost ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 110 ­j TOS ­­set­tos Normal­Service ${IPTABLES} ­t mangle ­A PREROUTING ­p icmp ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 5190 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 4000 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p udp ­­dport 4000 ­j TOS ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 6666:6667 ­j TOS \ ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 1214 ­j TOS ­­set­tos Minimize­Cost ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 6699 ­j TOS ­­set­tos Minimize­Cost ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 6700 ­j TOS ­­set­tos Minimize­Cost ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­dport 1412 ­j TOS \ ­­set­tos Maximize­Throughput ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­sport 1412 ­j TOS \ ­­set­tos Maximize­Throughput ${IPTABLES} ­t mangle ­A PREROUTING ­p udp ­­dport 4000:7000 ­j TOS \ ­­set­tos Minimize­Delay ${IPTABLES} ­t mangle ­A PREROUTING ­p tcp ­­sport 80 ­j TOS ­­set­tos Minimize­Cost ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ I have also put together a simple but quite effective QOS script which you may want to put into your /etc/ppp/ip-up script This script was put together from a number of other scripts I found on the internet.

Download PDF sample

Rated 4.74 of 5 – based on 11 votes