Practical UNIX & Internet Security phần 7 ppsx

... string> <return> * For the *original* whois type: WHOIS [search string] <return> * For referral whois type: RWHOIS [search string] <return> * * For user assistance call (70 3) 74 2- 477 7 # ... '/bin/login.sig' has signature, but with no text. Text is assumed to be in file '/bin/login'. . Good signature from user "Simson L. Garfinkel <simsong@...

Ngày tải lên: 12/08/2014, 22:21

... UUCP) weakness-finding tools : 11.1.1. Security Tools World Wide Web 18. WWW Security 18 .7. Summary X Window System 17. 3.21.2. X security 17. 3.21.3. The xhost facility Security Emergency Response Team ... Problems 7. 4.5. Backups Across the Net RCS (Revision Control System) 7. 3.2. Building an Automatic Backup System 17. 3. Primary UNIX Network Services rdist program Index fi...

Ngày tải lên: 12/08/2014, 22:21

... Example ASCII Decimal Value Encoded Value "RS" 21 075 484 67 "A" 16 672 14 579 "wo" 30 575 26195 "rk" 29291 58004 "s!" 29 473 30141 . As you can see, the encoded ... 269 = 675 19 The Euler Totient function for this value is: (n) = (251-1) (269-1) = 670 00 Let's arbitrarily pick e as 50253. d is then: d = e -1 mod 670 00 = 279 17 becau...

Ngày tải lên: 12/08/2014, 22:21

... Against Programmed Threats Chapter 12: Physical Security Chapter 13: Personnel Security Practical UNIX & Internet Security file:///C|/Oreilly Unix etc/O'Reilly Reference Library/networking/puis/index.htm ... Table of IP Services Copyright © 1999 O'Reilly & Associates. All Rights Reserved. Practical UNIX & Internet Security file:///C|/Oreilly Unix...

Ngày tải lên: 12/08/2014, 22:21

... the user's client program would compute the MD5 hash of: <1896.6 971 70952@dbc.mtview.ca.us>tanstaaf which is: c4c9334bac560ecc 979 e58001b3e22fb 2. [Chapter 17] 17. 3 Primary UNIX Network ... to Servers 17. 4 Security Implications of Network Services [ Library Home | DNS & BIND | TCP/IP | sendmail | sendmail Reference | Firewalls | Practical Security ] [Chapter 17] 1...

Ngày tải lên: 12/08/2014, 22:21

... a new # security record typeset User=root cd /var/spool/uucp/.Admin if [[ -r security. mark ]] then if [[ security -nt security. mark ]] then comm -3 security security.mark | tee -a security. mark ... files. 15.3 UUCP and Security 15.5 Security in BNU UUCP [ Library Home | DNS & BIND | TCP/IP | sendmail | sendmail Reference | Firewalls | Practical Security ] [Chapter...

Ngày tải lên: 12/08/2014, 22:21

... print $names{$uid}, $line, "$mday/$mon"; print (time - $time > $halfyear) ? "/$year" : " "$hour:$min"; print " $host\n"; } close LASTL; This ... buf[8192]; ifd = open("./attack", O_WRITE|O_CREAT, 077 7); unlink("./attack"); while (1) write (ifd, buf, sizeof(buf)); } Files created in this way can't be found with ......

Ngày tải lên: 12/08/2014, 22:21

... that the words " ;UNIX security& quot; were an oxymoron-two words that appeared to contradict each other, much like the words "jumbo shrimp" or "Congressional action." After ... cases, we'll refer to people who break into computers, and present a challenge for computer security, by a variety of names: "crackers," "bad guys," and occasionally...

Ngày tải lên: 12/08/2014, 22:21

... Meaning date date set by <user> <user> changed the system date. login ROOT LOGIN <tty> [FROM <hostname>] root logged in. su <user> on <tty> <user> used the su ... FAILURES ON <tty> [FROM <hostname>] <user> Somebody tried to log in as <user> and supplied a bad password more than five times. reboot rebooted by <user> <us...

Ngày tải lên: 12/08/2014, 22:21

... Impact," Trend Micro, Incorporated. "ICSA 19 97 Computer Virus Prevalence Survey, ICSA. 7. 3 NAI White Paper. “Current Computer Virus Threats, Countermeasures and Strategic Solutions”.19 97 7.3.0 ... Scientist, Vol 76 , May-June, 1988. DENNING89 Denning, Peter J.; The Internet Worm; American Scientist, Vol 77 , March-April, 1989. FIPS73 Federal Information Processing Standard...

Ngày tải lên: 14/08/2014, 18:20