×××¢× ×¢×¡ ק××× ×Š× ××Öž× ×××֞ך×× × ×× ×××עך×××× ×€×× ×Ö·× ×× ×¢×š××¢× ×€Ö¿×ך××¢ ×Öž×עך ××¢×€ÖŒ×ַך×××¢× ××Ö·× × ×¢×¥, ×€×××¢ ××××ַך××¢×עך עס ××× ×§×Ö·× ×ך×Öž×××× × ××× ×€Ö¿×֞ך××ַ׊××¢ ××קס ××× ×××€ÖŒ××Ö·××¢× ×× × DLP ס×Ö·××ש×Ö·× ×. ××× ×××× ××ך ׀֌ך××××š× ×Š× ×עךק××¢×š× ×× ×§×©×× ××× ×€×š×¢×× ××× ××ך ××¢××¢×§× ×× ×€××× ××××£ ×× ×× ×¢×š××¢× × ×¢×¥, ×עך ×¢× ×׀עך ×××¢×, ××× ×Ö· ×עךש×, ×××× ×עך××Öž× ×× × ×€×× ×× ×ך××ש×Ö·× ×××עקש×Ö·× ×¡×ס××¢××¢× (IDS). ××× ×××֞ס ××× ××¢×××¢× ×× ××××× ×֞׀֌׊××¢ 10-20 ××ך ׊×ך×ק ××× ×©××× ×Ö·× ×Ö·× ×Ö·×ך×Öž× ××× ×××Ö·× ×. עס ××× ×Ö· ×עך ע׀עק××××, ××× ××× ×¢×××¢××¢ עך×עך, ×עך ××××× ××¢×××¢× ×֞׀֌׊××¢ ×€Ö¿×ַך ××Öž× ×××֞ך×× × ×Ö·× ×× ×¢×š××¢× × ×¢×¥ - × ××Š× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס, ×××֞ס ××¢× ×¢× ×¢×š××××©× ×Ö·×× ×××××× × ×Š× ×××× ×€Ö¿×ַך × ×¢×¥ ׀֌ך×Öž×××¢×ס (×ך×Öž×××עש×Öž×Öž××× ×), ×Öž×עך ××× ×Š××× ×€×ך×××× ×××¢× ××× ×Ö· ×××עך ×ש×ק×Ö·×××¢ ×××עך×××× ×ע׊××Ö·×. ××ך ×××¢×× ×š×¢×× ×××¢×× ×××֞ס ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס עס ××¢× ×¢× ××× ×××֞ס ××¢× ×¢× ×עסעך ××× ×××עק××× × × ×¢×¥ ×× ×€×××, ××× ×¢×¡ ××× ×עס×עך ×Š× ×× ×¡×ך×××¢× × ××××€× ××Öž× ×××֞ך×× ×, ×××֞ס ×Š× ×§××§× ×€Ö¿×ַך ×××¢× ×××€ÖŒ××××× × ×Ö·××Ö· ×Ö· ס××¢××¢, ××× ××€××× ××× ×Š× "×××××" ×Ö·××¢ ××¢× ××××£ ××× ×¢×š ××סך××× ××× ××¢× ×€×Ö·×š× ×¢× ×€×× ××¢× ×ַך××ק×.
××× ×××¢× × ××©× ××××× ×¢× ××××£ ×× ×§×©×× "×€×ך×××ס ××× ×× ×¢×š××¢× ×× ×€×š×ַס×ך×ַק×שעך ×××עך×××× ××Öž× ×××֞ך×× × ××ךף?" ×עך ×¢× ×׀עך ×××× × ×Š× ×××× ×§××֞ך. ×Öž×עך ×××× ××ך ×××Öž×× ××× ×Š× ××Ö·×× ×××עך ×Ö·× ×××Ö·× × ××ך ×§×¢× ×¢× × ××©× ××¢×× ×Öž× ×¢×¡,
××× ×××Öž×× ×××××€ÖŒ×× ×§× ×ך×× ×©×××¡× ××Ö·×× ×§××××× ×€Ö¿×ַך ××Öž× ×××֞ך×× × ×× ×€×š×ַס×ך×ַק×שעך ××××£ ×× × ×¢×¥ ××ך××:
- "ך××" ×€×ַךקעך ×××֞ס ××ך ××Ö·×€ÖŒ× ××× ×€×֞ך××××× ×€Ö¿×ַך ×Ö·× ×Ö·××ס×ס ×Š× ×××עך ×Ö·× ×Ö·××ס×ס ס×ס××¢××¢×,
- ××¢×©×¢×¢× ××©× ×€×× × ×¢×¥ ××¢×××סעס ×××š× ×××֞ס ×€×ַךקעך ×€ÖŒ×ַס××,
- ×€×ַךקעך ××× ×€Ö¿×֞ך××ַ׊××¢ ××ק×××¢× ×××š× ×××× ×¢×š ×€×× ×× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס.
ק×Ö·×€ÖŒ×שעך×× × ×š×× ×€×ַךקעך ××× ×× ××¢×š×¡× ×€×Öž×קס ×֞׀֌׊××¢ ׊××××©× ×××עך×××× ×¡×€ÖŒ×¢×©×Ö·××ַסץ, ××××Ö·× ×¢×¡ ××ס××֞ך×ק×× ×ך××ס ××× ××× ××¢×××¢× ×עך עךש×עך. ק×Ö·× ×××¢× ×©×Ö·× ×Ö·× × ×¢×¥ ×× ×ך××ש×Ö·× ×××עקש×Ö·× ×¡×ס××¢××¢× (×× ×××עך עךש×עך ××¢×©×¢×€× ×× ×ך××ש×Ö·× ×××עקש×Ö·× ×¡×ס××¢× ××× ××¢×××¢× NetRanger ×€×× ×× Wheel Group, ׀֌עך×ש×Ö·×¡× ××× 1998 ×××š× Cisco) ××¢× ×¢× ×€ÖŒ×× ×§× ×€×Ö·×š×§× ×Ö·×¡× ××× ×§×Ö·×€ÖŒ×שעך×× × ×€ÖŒ×ַק××¥ (××× ×©×€ÖŒ×¢×עך סעש×Ö·× ×) ××× ×××֞ס ×××עך ס××× ×Ö·××©×¢×š× ××¢× ×¢× ×עק××§× ×€Ö¿×ַך ("××ַש××××¢× ××ק ×ÖŒ××××" ××× FSTEC ×עך××× ×Öž××Öž×××¢), ס××× ×Ö·××× × ×× ×€×××. ××Öž×, ××ך ×§×¢× ×¢× ×Ö·× ×Ö·×××× ×š×× ×€×ַךקעך × ×× ××××× × ××Š× IDS, ×Öž×עך ×××× × ××Š× ×× ×עךע ××ש×ך×× (××ש×, Wireshark, tcpdum ×Öž×עך ×× NBAR2 ×€×Ö·× ×קש×Ö·× ×Ö·×××× ××× Cisco IOS), ×Öž×עך ××× ×××ש×Ö·×××Ö·×× ×€×¢×× ×× ××××¡× ××Ö·××¢ ×××֞ס ××ס××× ×××××ש×× ×Ö·× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ×ע׊××Ö·× ×€×× ×Ö· ךע×××עך. עס ×ע׊××Ö·×.
×Ö·×××, ××Ö·×€×Ö·×× ×××עקש×Ö·× ×¡×ס××¢××¢×. ×× ×Öž××××Ö·×¡× ××× ××¢×š×¡× ×€×Öž×קס ×××€Ö¿× ×€×× ×××עק××× × × ×¢×¥ ×× ×€×××, ×××֞ס ××× ×Ö· ××× ×ַך××¢× ××× ×× ×€ÖŒ×¢×š×××¢×עך (ק××× ×¢× ×× ×××֞ס - ×€Ö¿×ך××¢, ××Ö·×× ×Š×¢× ×עך, ×Öž×€ÖŒ×©× ××, ×××"× ×), ×Öž×עך ×€×××× ××× ××Öž××¢×š× ×¡×××××©× ××× ××××××××ך×-×××€××× × × ×¢××××֞ךקס. ××× ××¢× ×€×Ö·× ×€×× ×Ö· × ×¢×¥ ××¢×××× ××××£ ×× ×קעך ×€×× ×§×Ö·× ×××¢× ×©×Ö·× ×Ö·× ×¡××××ש××, ×× ×× ×€×š×ַס×ך×ַק×שעך ×€×× ××Ö·×€×Ö·×× ×××עקש×Ö·× ×¡×¢× ×¡×֞ךס ×××¢×š× ×Š× ×ך××ס - ××ך ×××¢× ××Öž×× ×Š× ×× ×¡××Ö·×××š× ×Ö· ×¡×¢× ×¡×¢×š ××××£ ××¢×עך קשך ×Š× ×× × ×Öž××¢ ××××£ ×××֞ס ××ך ××××× ×Š× ××Öž× ×××֞ך ×× ×€×××. ××¢×עך ×€×Ö·×ך×ק×Ö·× ×, ×€×× ×§×ךס, ×××¢× ×××× ×Š×׀ך××× ×Š× ×€×ַךק×××€× ××ך ××× ×עך×עך ××× ××××× ×עך ×€×× ×¡×¢× ×¡×֞ךס, ×Öž×עך ××× ×ך×Ö·××× ×××× ×××××©×¢× ×§×¢× × ××©× ×©×××Š× ×Ö·××Ö· ××׊××ת. ××× ×§×¢× ××Öž×× ×Ö·× ××€××× ××× ×¡×סק×Öž (××× ××ך ××¢× ×¢× ×× ××¢×××¢××֞׀֌עךס ×€×× NGIPS) ××ך ×§×¢× × ××©× ××Öž× ××֞ס, ××Öž×ש עס ×××Öž×× ××סק×××¢× ×Ö·× ×× ×ַך××ס××¢×× ×€×× ×€ÖŒ×š××Ö·× ××× ×€Ö¿×ַך ××× ××. ××× ××Öž× × ××©× ×©×××× - ××֞ס ××× ××× ××עך ×××××¢× ×¢ ××ַש××ס. ××× ×עך׊×, ×× ×§×©×× ×¢×š××××Ö·×, ××× ×Š× ×€×ַך××× ×× ×× ×¡×¢× ×¡×¢×š ××× ××¢× ××עךס××¢? ××× ×עך ך×ס? ×××֞ס ×××× ×עך ×¡×¢× ×¡×¢×š ××× ×€××××? ××Ö·×š×€× ×Ö· ××××€ÖŒ×ַס ××Öž××××¢ ××× ×× ×¡×¢× ×¡×¢×š? × ××Š× ×¡×€ÖŒ××××עךס (׊×Ö·×€ÖŒ×)? ×Ö·××¢ ××¢× ×××× ×× ×××××× × ×עך ×××ַעך ××× ×××× ×¢×¡ ×Ö·× ×Ö·×€×֞ך××Ö·××Ö·× ×€Ö¿×ַך ×Ö· ×€×ך××¢ ×€×× ââק××× ×ך××ס.
××ך ×§×¢× ×¢× ×€ÖŒ×š××××š× ×Š× "××¢× ××¢×" ×× ×¡×¢× ×¡×¢×š ××××£ ×Ö· SPAN / RSPAN / ERSPAN ×€ÖŒ×Öž×š× ××× ×××š×¢×§× ×€×ַךקעך ×€×× ×× ×€×ך××× ×× ××ַש××××¢× ×€ÖŒ×֞ךץ ×Š× ×¢×¡. ×× ×֞׀֌׊××¢ ×××× ×š×××××× ×× ×€ÖŒ×š×Öž×××¢× ××סקך×××× ××× ×× ×€×š×עך××קע ×€ÖŒ×ַך×Ö·×ך×Ö·×£, ×Öž×עך ×€ÖŒ×Öž×××× ×× ×× ×עך ×××× ×¢×š - ×× SPAN ×€ÖŒ×Öž×š× ×§×¢× × ××©× ×Öž× × ×¢××¢× ××¢××Ö·×ךע ×Ö·××¢ ×× ×€×ַךקעך ×××֞ס ×××¢× ×××× ×עש××§× ×Š× ××× - עס ×××¢× × ××©× ××Öž×× ××¢× ×× ××Ö·× ××××××. ××ך ×××¢× ××Öž×× ×Š× ×§×š×× ×¢×€ÖŒ×¢×¡. ×Öž×עך ××Öž×× ×¢×××¢××¢ ×€×× ââ×× × ×Öž××× ×Öž× ××Öž× ×××֞ך×× × (××¢××Öž×× ××ך ××Ö·×š×€Ö¿× ×Š× ×€ÖŒ×š×××֞ך×Ö·×××× ××× ×¢×š×©×עך), ×Öž×עך ש××§× × ×× ×Ö·××¢ ×€×ַךקעך ×€Ö¿×× ×× × ×Öž××¢, ×Öž×עך ××××× ×Ö· ×××עך ×××€ÖŒ. ××× ×§××× ×€×Ö·×, ××ך ×§×¢× ×€×ַך׀××š× ×¢×××¢××¢ ×× ×€×××. ××× ×Ö·××ש×Ö·×, ×× SPAN ×€ÖŒ×Öž×š× ×§×¢× ×¢× ×××× ××¢××××× × ×€Ö¿×ַך ×× ×עךע ××××¢×š×€×¢× ×ש×. ××× ×Ö· ךע×××××Ö·×, ××ך ×××¢×× ××Öž×× ×Š× ×֞׀֌ש×Ö·×Š× ×× ××××ס××× × × ×¢×¥ ××Ö·×€ÖŒ×Ö·××Ö·×××©× ××× ×¢×€×©×¢×š ××Ö·×× ×Ö·××ש×ַס×××Ö·× ×¥ ×Š× ×¢×¡ ×Š× ××¢×§× ×××× × ×¢×¥ ×Š× ×× ××ַקס×××× ××× ×× × ××עך ×€×× ×¡×¢× ×¡×֞ךס ××ך ××Öž×× (××× ×§×Öž××֞ך××Ö·× ×Ö·× ××¢× ××× ×¢×¡).
×××֞ס ×××× ×××× × ×¢×¥ × ××Š× ×ַס××××¢×ך×ק ך××¥? ×××֞ס ×××× ××ך ××Öž× ×××€ÖŒ××Ö·××¢× ×Ö·× ×Öž×עך ×€ÖŒ××Ö·× ×ך×× × ×Š× ×× ×¡×ך×××¢× × SDN? ×××֞ס ×××× ××ך ××Ö·×š×€Ö¿× ×Š× ××Öž× ×××֞ך ×××ך×××Ö·××××¢× ××ש×× ×¢× ×Öž×עך ק×Ö·× ×××× ×¢×š× ×××¢××¢× ×¡ ×€×ַךקעך ×§×¢× × ××©× ×עך×ך×××× ×× ×ש×××ת ××ַש××××¢×? ××֞ס ××¢× ×¢× ×€Ö¿×š××× ×××֞ס ×ך×××׊××× ×¢×× IDS ×××¢× ××֞ךס ××Öž× × ×× ××× ××××Ö·× ××× ××Öž× × ×× ××××¡× ××× ×Š× ×¢× ××€Ö¿×¢×š× ×××. ××Öž×עך ××× ×××¢×× ×××עך׊×××× ××ך ×Ö·× ×Ö·××¢ ×× ××Öž××¢×š× ××¢×§× ×Ö·××Ö·××ש×× ××¢× ×¢× ××××€ÖŒ ××× ××ך ××Öž× × ×× ××Ö·×š×€Ö¿× ×¢×¡. ××Öž×עך ××× ×××¢×× ×š×¢×× ×××¢×× ×× × ××× ×Š× ×Öž× ××××× ×§××××. ×Öž×עך ×׀ֿשך ××× ×××¢×× ××Öž×× ×Ö·× ××ך ××Ö·×š×€Ö¿× ×Š× ×©××¢×× ×Ö· ש××ַךק ×ךעשעך ××× ×× ×Š×¢× ×עך ×€×× ×× × ×¢×¥ ××× ×Öž× ×€××š× ×Ö·××¢ ×€×ַךקעך ×Š× ×¢×¡ ××× ××Ö·××Ö·× ×¡×¢×š×. ×××¢××עך ×֞׀֌׊××¢ ××× ××¢×€Ö¿×× × ×Š× ××ך, ××ך ××Ö·×š×€Ö¿× ×Š× ×§××ך ×€Ö¿×ַךש×××× ××× ×¢×¡ ס××¥ ××ך. ××× ××××× × ×Öž× ××¢× ××Ö·×× ×Ö· ××ַש××ס ××××£ ×ש×××× × ×Ö· ׊×××Ö·× × ×Š× ××Öž× ×××֞ך×× × ×× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ×€×× ×× × ×¢×¥ ×× ×€×š×ַס×ך×ַק×שעך. ׊×ך×ק ×Š× ×€ÖŒ×ַק×Ö·× ××Ö·×€ÖŒ×, ××× ××××× ×Š× ××Öž×× ×Ö·× ×עך ×××€Ö¿× ×××× ×Š× ×××× ×××עך ×€×Öž×קס ××× ××××××ק, ×Öž×עך ×××Ö·× ××××€ÖŒ× ×Š×× ××× ××š×¢× ×¢×¥ ק×Öž× ×ך×Öž×; ××Ö·×× ×ך×× ×Š××××©× ×××× ×֞ך××Ö·× ×××ַ׊××¢ ××× ×× ××× ××¢×š× ×¢×, ××Ö·×× ×ך×× ×Š××××©× ×× ××Ö·×× ×Š×¢× ×עך ××× ×× ×š×¢×©× ×€×× ×× × ×¢×¥, ××Ö·×× ×ך×× ×Š××××©× ×× ×€ÖŒ×š×֞׊עס ק×Öž× ×ך×Öž× ×¡×ס××¢× ××× ×× ×€Ö¿×ך××¢ ×Öž×€ÖŒ×©× ××. ××× ×× ×¢×š×עך, ק××ַס×ש IDS / IPS × ×Öž× ××Öž×× ×Ö· ךע×× ×Š× ×¢×§×¡×ס×××š× ××× ×§×֞׀֌ע ××¢××× × ××× ×××עך ××ַסקס.
××× ×¡ ××Ö·× ××××£ ×Š× ×× ×š××¢ ×֞׀֌׊××¢. ×Ö·× ×Ö·××ס×ס ×€×× ××¢×©×¢×¢× ××©× ×××֞ס ק×××¢× ×€×× × ×¢×¥ ××¢×××סעס ×§×¢× ×¢× ×××× ×××× ××¢× ××Š× ×€Ö¿×ַך ××Ö·×€×Ö·×× ×××עקש×Ö·× ×Š××עק×, ×Öž×עך × ××©× ××× ×× ××××€ÖŒ× ×עק×Ö·× ×××Ö·×, ××××Ö·× ×¢×¡ ×Ö·××Ö·×× ×××עק××× × ××××× ×Ö· ק×××× ×§××ַס ×€×× ×× ×ך××ש×Ö·× ×. ××× ×עך׊×, עס ××× ××Öž××ק ××× ×¢×××¢××¢ ך××ַק×××××Ö·×× - ×× ××Ö·×€×Ö·×× ×××× ×¢×š×©×עך ×€ÖŒ×ַס×ך×, ××¢××Öž×× ×¢×¡ ×××× ×××× ×š×¢×§×֞ך××¢× ×××š× ×Ö· × ×¢×¥ ××××, ×××֞ס ××× ×××× ×Öž×עך ×× ××¢×š× ×××¢× ×××¢× ×¡××× ×Ö·× ×Ö· ׀֌ך×Öž×××¢× ××× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך××××. עס ××¢× ×¢× ×¢×××¢××¢ ×Ö·××Ö· ×××¢××. ××֞ס ×§×¢× ×××× ×¡×ס××Öž×, RMON ×Öž×עך SNMP. ×× ×ע׊××¢ ׊×××× ×€ÖŒ×š×Öž××֞ק×Öž×ס ×€Ö¿×ַך × ×¢×¥ ××Öž× ×××֞ך×× × ××× ××¢× ×§×Öž× ××¢×§×¡× ×€×× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××¢× ×¢× ××¢× ××Š× ××××× ×××× ××ך ××Ö·×š×€Ö¿× ×Š× ××¢××¢×§× ×Ö· ××֞ס ××Ö·×€×Ö·×× ××××£ ×× × ×¢×¥ עק××××€ÖŒ××¢× × ×××, ××××Ö·× × ××Š× RMON ××× SNMP עס ××× ××¢×××¢×, ××ש×, ×Š× ××Öž× ×××֞ך ×× ××ַסע ××××£ ×× ×××× ×¡ ××××€× ××××. ׀֌ך×ַסעסעך ×Öž×עך ×××Ö·× ×× ×עך׀××ס××. ××֞ס ××× ×××× ×¢×š ×€×× ×× "×ש××€ÖŒ×ַס×" (×Ö·××¢××¢× ××× ×¡×ס××Öž× ×Öž×עך SNMP), ×Öž×עך ×××× ×× ××¢×š×¡× ×× ×׀עק×××× ×€×× ×Ö·××¢ ××¢×××Öž×ס ×€×× ××Öž× ×××֞ך×× × ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ×€×× ×× ×¢×š××¢× ×× ×€×š×ַס×ך×ַק×שעך - ×€×××¢ ×× ×€××× ××¢× ×¢× ×€×©×× ×€×ַך××֞ך×× ×€×× ×¢×¡. ×€×× ×§×ךס, ××× ××Öž× × ×× ×××× ×Öž×€ÖŒ××¢××Öž××, ××× ×עך ××¢×××קעך ס×ס××Öž× ×Ö·× ×Ö·××ס×ס ××¢×׀֌ס ××ך ×Š× ×××¢× ×××€×׊××š× ×¢× ×עך×× ××¢× ××× ×× ×§×Ö·× ×€×××עך××ש×Ö·× ×€×× ×× ×××× ×××, ×× ×§×Öž×׀֌ך×Öž××ס ×€×× ×¢×¡, ×Öž×עך עס ××× × ××©× ×××עך ×€ÖŒ×ַס×ק ×€Ö¿×ַך ×××עק××× × ×× ×€××× ××××£ ×× ××× ×Š×¢ × ×¢×¥.
×× ×ך×× ×֞׀֌׊××¢ ××× ×Š× ×€×× ×Ö·× ×עךק×××Ö·×× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××¢×× ×€×ַךקעך ×××× ×€×ך××× ×××š× ×Ö· ×××× ×××֞ס ש×××Š× ×××× ×¢×š ×€×× ×¢×××¢××¢ ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס. ××× ××¢× ×€×Ö·×, ך×Ö·××ַך×××ַס ×€×× ××¢× ×€ÖŒ×š×Öž××֞ק×Öž×, ×× ×ךע××× × ×× ×€×š×ַס×ך×ַק×שעך ××Ö·××קע ××ש×××× ×€×× ×ך×× ×§×Ö·××€ÖŒ×Öž×× ×Ö·× ×¥:
- ××ך ×Öž×עך ×ַך××ס׀××š× ×€×× ××××€×. ×× ×š×Öž××¢ ××× ×××ש×Ö·×××Ö·×× ×ַס××× × ×Š× ×Ö· ך×Ö·××עך, ××ַש××××¢× ×Öž×עך ×× ×עךע × ×¢×¥ ××××, ×××֞ס, ×××š× ×€×Öž×š× × ×¢×¥ ×€×ַךקעך ×××š× ×××, ×Ö·××Ö·×× ××ך ×Š× ×¢×§×¡×ך×Ö·×§× ×©×××¡× ×€ÖŒ×ַך×Ö·××¢×עךס ×€×× ×¢×¡, ×××֞ס ××¢× ×¢× ×ך×Ö·× ×¡×××××¢× ×Š× ×× ××Ö·×××× × ××Öž××××¢. ××ש×, ס×סק×Öž ש×××Š× ×× × ×¢××€××Öž×× ×€ÖŒ×š×Öž××֞ק×Öž× × ×× ××××× ××××£ ך×Öž××עךס ××× ×¡××××ש××, ×ַך××Ö·× ×עךע×× × ×××ך×××Ö·× ××× ×× ××ַס×ך×, ×Öž×עך ×××× ××××£ ××××ך××ס ק×Ö·× ×ך×Öž××עך×, ×€×ךע×××Ö·××ס ××× ××€××× ×¡×¢×š××עךס.
- ××Ö·×××× × ××××€×. ק×Ö·× ×¡××עך×× × ×Ö·× ×Ö· ××Öž××¢×š× × ×¢×¥ ×××ש×Ö·×××Ö·×× ××× ×עך ××× ×××× × ×¢×¥ ××××, ×× ×€ÖŒ×š×Öž×××¢× ×€×× ×§×Ö·×עק××× × ××× ×§×Ö·× ×¡×Ö·××Ö·×××××× × ×€××Öž×× ×¢×š××××Ö·×, ×××֞ס ××× ×¡×Ö·×××× ××× ×× ×Ö·××× ×עך××€×¢× ×¢ ק×Ö·×עק×עך×, ×××֞ס ׀֌ך×ַסעס×Ö·× ×× ××ק×××¢× ×€××Öž×× ××× ××¢×š× ×Öž× ×ַך××עך׀××š× ××× ×€Ö¿×ַך ×Ö·× ×Ö·××ס×ס.
- ××××€× ×Ö·× ×Ö·××ס×ס ×עך ×Ö·× ×Ö·×××עך × ×¢×× ××××£ ×× ××××€ÖŒ× ××× ××¢×עק×××Ö·× ×ַך××¢× ×××, ×Ö·×€ÖŒ××××× × ×€×ַךש××× ×Ö·××עך×××Ö·×× ×Š× ×¡×ך×××, ×ך×Öž× ×××עך ק×Ö·× ×§×××ש×Ö·× ×. ×€Ö¿×ַך ×××ַש׀֌××, ××× ×Ö· ×××× ×€×× ×Ö· IT ×€×× ×§×Š××¢, ×Ö·××Ö· ×Ö·× ×Ö·× ×Ö·×××עך ×§×¢× ×¢× ×××¢× ×××€×׊××š× × ×¢×¥ ××Ö·××Ö·×× ×¢×§×¡ ×Öž×עך ×Ö·× ×Ö·×××× ×× ×€×ַךקעך ××ַסע ׀֌ך×Öž×€×× ×€Ö¿×ַך ××××Ö·×עך × ×¢×¥ ×Ö·×€ÖŒ××Ö·××Ö·×××ש×Ö·×. ××× ×€Ö¿×ַך ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך××××, ×Ö·××Ö· ×Ö· ×Ö·× ×Ö·×××עך ×§×¢× ×¢× ××¢××¢×§× ××Ö·×× ××קס, ×× ×€×ַךש׀֌ך×××× ×€×× ×××××¢ ק×Öž× ×Öž×עך ××֞ס ×× ×€×××.
×× ××××¡× × ××©× ×ך×Ö·××× ×Ö·× ×× ×ך××-ך×× ×ַךק×Ö·×עק×שעך ××× ×Š× ×§×Öž××€ÖŒ××׊××š× - ×Ö·××¢ ×× ×עךע ×֞׀֌׊×עס (×Ö·×××¥, ××Öž×עך, × ×¢×¥ ××Öž× ×××֞ך×× × ×¡×ס××¢××¢× ×ך××¢×× ××× SNMP ××× RMON) ×××× ×ַך××¢× ×××× ×¢×¡. ××ך ××Öž×× ×Ö· ××Ö·×× ××¢× ×¢×š×Ö·××֞ך ×€Ö¿×ַך ×Ö·× ×Ö·××ס×ס, ×××֞ס ×§×¢× ×¢× ×××× ×Ö· × ×¢×¥ ×××× ×Öž×עך ×Ö· ס××Ö·× ×-×Ö·×××× ×¡×¢× ×¡×¢×š. ××ך ××Öž×× ×Ö· שךעק ××Ö·×××× × ×¡×ס××¢× ××× ×Ö· ×€×ַך×××Ö·×××× × ×¡×ס××¢× ×€Ö¿×ַך ×× ××× ×Š×¢ ××Öž× ×××֞ך×× × ×× ×€×š×ַס×ך×ַק×שעך. ×× ×ע׊××¢ ׊×××× ×§×Ö·××€ÖŒ×Öž×× ×Ö·× ×¥ ×§×¢× ×¢× ×××× ×§×Ö·××××× × ××× ×Ö· ×××× × ×Öž××¢, ×Öž×עך ××× ×עך ×Öž×עך ××××× ×קעך ×ך××ס × ×¢××××֞ךקס ××× ××¢× ×¢× ×××ש×Ö·×××Ö·×× ×€×ַךש׀֌ך×××× ×××עך ×××Ö· ××× ×ס×עך ׊×××× ××¢×××סעס ××× ×¡×ך ×Š× ×¢× ×©×ך סק×Ö·××Ö·×××××× ××× ×š×××××Ö·××××Ö·××.
× ×× ×¢× ××¢× ×€ÖŒ×ַק×Ö·× ×Ö·× ×Ö·××ס×ס, ×××֞ס ××× ×××××š× ××××£ ××¢×š× ×¢× ×× ××¢×עך ××× ×××£ ××Ö·×× ×€×× ××¢×עך ×€ÖŒ×ַק×Ö·× ××× ×× ×¡×¢×©×Ö·× × ×××֞ס עס ××ש×××× ×€××, ××××€× ×Ö·× ×Ö·××ס×ס ך××××× ××××£ ק×Ö·×עק××× × ××¢××Ö·××Ö·××Ö· ×××¢×× × ×¢×¥ ×€×ַךקעך. ×××¢×, ××× ×€××, ×€×× ××× ××× ×××, ××× ... ××֞ס ××¢× ×¢× ×× ×€Ö¿×š××× ××¢×¢× ××€×¢×š× ×××š× ×× ×Ö·× ×Ö·××ס×ס ×€×× × ×¢×¥ ××¢××¢××¢××š× × ××Š× ×€×ַךש××× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס. ××××עס, ××× ××¢× ×¢× ××¢× ××Š× ×Š× ×€×× ×Ö·× ×עךק×××Ö·×× ×¡××Ö·××ס××ק ××× ××¢×€Ö¿×× ×¢× ×¢×¡ ׀֌ך×Öž×××¢×ס ××××£ ×× × ×¢×¥, ×Öž×עך ××¢××Öž××, ××× ×Ö·× ×Ö·××ס×ס ×עק×Ö·× ×××Ö·×× ××¢×××¢××֞׀֌ע×, עס ××× ××¢×××¢× ××¢×××¢× ×Š× ×Š×××××× ××× ×Š× ×עך ××¢×××קעך ××¢××¢××¢××š× ×€Ö¿×ַך ×××עך×××× ×Š××עק×. עס ××× ×××× ×Š× ××××¢×š×§× ×Ö·× ×× ××××€× ×Ö·× ×Ö·××ס×ס ×§×¢× × ××©× ×€×ַך×××Ö·×× ×Öž×עך ×€×ַך×××Ö·×× ×€ÖŒ×ַק×Ö·× ××Ö·×€ÖŒ×. ××¢×עך ×€×× ×× ××¢×××Öž×ס ××× ×××× ×××××¢× ×¢ ×Ö·×€ÖŒ××ַק××ש×Ö·× ××¢×× ×. ×Öž×עך ××× ××¢× ×§×Öž× ××¢×§×¡× ×€×× ××¢× ×ַך××ק×, ×× ××××€× ×Ö·× ×Ö·××ס×ס ××× ×עס×עך ×€ÖŒ×ַס×ק ×€Ö¿×ַך ××Öž× ×××֞ך×× × ×× ×¢×š××¢× ×× ×€×š×ַס×ך×ַק×שעך. ××ך ××Öž×× × ×¢×¥ ××¢×××סעס (×Š× ××× ×ַך××¢×× ××× ×Ö· ××××××××ך×-×××€××× × ×€ÖŒ×ַך×Ö·×××× ×Öž×עך ×××× ×¡××Ö·××ק ×ÖŒ××××) ×Ö·× ×Ö· ××Ö·×€×Ö·×× ×§×¢× × ××©× ××××€ÖŒ×ַס. עס ×§×¢× ×¢× ××××€ÖŒ×ַס ×Ö· ק××ַס×ש IDS ×¡×¢× ×¡×¢×š, ×Öž×עך ×Ö· × ×¢×¥ ×××× ×××֞ס ש×××Š× ×× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž× ×§×¢× × ×ש×. ××֞ס ××× ×× ×××Ö·××¢ ×€×× ââ××¢× ×××€Ö¿×.
××××£ ×× ×× ×עךע ××Ö·× ×, ×××× ××ך ××Ö·×š×€Ö¿× ××Öž×× ×€Ö¿×ַך ××¢××¢×¥ ×¢× ×€×֞ךס××Ö·× × ×Öž×עך ×××× ×××××¢× ×¢ ××× ×Š×××¢× × ××ס׀×֞ךש×× × ××Ö·× ×©×Ö·×€Ö¿×, ××ך ×§×¢× ×¢× × ××©× ××Öž× ×Öž× ×€ÖŒ×ַק×Ö·× ××Ö·×€ÖŒ× - × ×¢×¥ ××¢××¢××¢××š× ××× × ××©× ×Ö· ק×Öž×€ÖŒ××¢ ×€×× ââââ×€×ַךקעך ×××֞ס ×§×¢× ×¢× ×××¢×š× ××¢× ××Š× ×Š× ××Ö·×××¢× ××Öž××; עס ××× ××ךף ×€Ö¿×ַך ××× ×××עקש×Ö·× ××× ××ַש××ס-×××× ××× ×× ×€×¢×× ×€×× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך××××. ××××£ ×× ×× ×עךע ××Ö·× ×, × ××Š× ××¢××¢××¢××š× ×Ö·× ×Ö·××ס×ס, ××ך ×§×¢× ×¢× "שך××Ö·××" × ×× ×Ö·××¢ × ×¢×¥ ×€×ַךקעך (×××× ×¢×€ÖŒ×¢×¡, ס×סק×Öž ×××× ××× ××Ö·×× ×¡×¢× ×עךס :-), ×Öž×עך ××××× ×××֞ס ××× ×× ×××Ö·×××× ××× ×× ××Ö·×€×Ö·××. ××¢××¢××¢××š× ×Ö·× ×Ö·××ס×ס ××ש×ך×× ××× ××¢× ×Ö·×××× × ×××¢× ×עך××Ö·× × ×ך×××׊××× ×¢×× ×€ÖŒ×ַק×Ö·× ××Ö·×€ÖŒ× ×עק×Ö·× ×××Ö·×× ××¢××× ×, ××¢×× ×§×Ö·××Ö·× ×× ×€Ö¿×ַך סע×עק×××× ××Ö·×€ÖŒ× ××× ×¡××֞ך×××ש. ×Ö·× ×עךש, ××ך ×××¢× ××Öž×× ×Ö· ק×Öž××֞ס×Ö·× ×¡××֞ך×××ש ×× ×€×š×ַס×ך×ַק×שעך.
××Öž××ך ×××Ö·××ש×Ö·× ×Ö· × ×¢×¥ ××× ×Ö· ×××ק××Ö·× ×€×× 250 ×××× / סעק. ×××× ××ך ××××× ×Š× ×§×š×Öž× ×Ö·××¢ ××¢× ××Ö·× ×, ××ך ××Ö·×š×€Ö¿× 31 ××¢××××××× ×¡××֞ך×××ש ×€Ö¿×ַך ×××× ×š××¢ ×€×× ââ×€×ַךקעך ×ך×Ö·× ×¡××ס××¢, 1,8 ×××××××× ×€Ö¿×ַך ×××× ××× ××, 108 ×××××××× ×€Ö¿×ַך ×Ö· ×©×¢× ××× 2,6 ×× ×€Ö¿×ַך ×××× ××Öž×. ×Š× ×§×š×Öž× ××¢×××¢× ××Ö·×× ×€Ö¿×× ×Ö· × ×¢×¥ ××× ×Ö· ××Ö·× ×××××× ×€×× 10 ×××× / s, ××ך ××Ö·×š×€Ö¿× 108 ×× ×¡××֞ך×××ש. ×Öž×עך ×¢×××¢××¢ ךע×××Ö·×××××¢×š× ××Ö·×š×€× ×¡××֞ך×× × ×××עך×××× ××Ö·×× ×€Ö¿×ַך ××Öž×š× ... ××××£-×€×Öž×עך×× × ×š×¢×§×֞ך××× ×, ×××֞ס ××××€× ×Ö·× ×Ö·××ס×ס ××¢×׀֌ס ××ך ×× ×¡×ך×××¢× ×, ××¢×׀֌ס ×Š× ×š×¢××׊××š× ×× ×××Ö·××עס ×××š× ×֞ך×עךס ×€×× ××Ö·×× ×Ö·×××. ×××š× ××¢× ×××¢×, ×××× ××ך ךע×× ×××¢×× ×× ×€×ַך××¢×××¢× ×ש ×€×× ×× ××Ö·× × ×€×× ×š×¢×§×֞ך××¢× × ×¢×¥ ××¢××¢××¢××š× ××Ö·×× ××× ××Ö·× ×¥ ××Ö·×× ××Ö·×€ÖŒ×, עס ××× ××¢×¢×š×¢× 1 ×Š× 500. ×€Ö¿×ַך ×× ××¢×××¢ ×××Ö·××עס ××¢××¢×× ×××××, ס××֞ך×× × ×Ö· ×€×× ×ך×Ö·× ×¡×§×š××€ÖŒ× ×€×× ×Ö·××¢ ××¢×××¢× ×€×ַךקעך ך×ס׀֌עק×××××× 5 ××× 216 ×××××××× (××ך ×§×¢× ×¢× ××€××× ×š×¢×§×֞ך×××š× ×¢×¡ ××××£ ×Ö· ךע×××עך ××××¥ ×€×֞ך).
×××× ×€Ö¿×ַך ××ש×ך×× ×€Ö¿×ַך ×Ö·× ×Ö·×××××× × ×š×× × ×¢×¥ ××Ö·××, ×עך ×××€Ö¿× ×€×× ×§×Ö·×€ÖŒ×שעך×× × ×¢×¡ ××× ×ÖŒ××¢× ×× ××¢×××¢ ×€×× ââ×€×ַךק××׀עך ×Š× ×€×ַךק××׀עך, ××× ××¢× ×€×Ö·× ×€×× ××××€× ×Ö·× ×Ö·××ס×ס, ×× ×¡××××ַ׊××¢ ××× ×Ö·× ×עךש. עס ××¢× ×¢× ×¢×××¢××¢ ×֞׀֌׊×עס ×€Ö¿×ַך ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס, ×× ××׀עך×Ö·× ×¡×× ××× ×××֞ס ××ך ××Ö·×š×€Ö¿× ×Š× ××××¡× ××× ××¢× ×§×Öž× ××¢×§×¡× ×€×× ×××עך××××. ×× ××¢×š×¡× ×€×Öž×קס ××× ×× Netflow ׀֌ך×Öž××֞ק×Öž× ××¢×××¢××Öž×€ÖŒ×¢× ×××š× Cisco. עס ××¢× ×¢× ×¢×××¢××¢ ××עךס×עס ×€×× ××¢× ×€ÖŒ×š×Öž××֞ק×Öž×, ×Ö·× ×עךש ××× ×××עך ק×××€ÖŒ×Ö·××××Ö·××× ××× ×× ×¡×××¢ ×€×× ââ×€×ַךקעך ××× ×€Ö¿×֞ך××ַ׊××¢ ךעק×֞ך××¢×. ×× ××׊××קע ××עךס××¢ ××× ×× × ××× ×עך (Netflow v9), ××××£ ×עך ××××¢ ×€×× ââââ×××֞ס ×× ×× ××ַס××š× × ×֞ך××Ö·× Netflow v10, ×××× ××ק×× × ××× IPFIX, ××× ××¢×××¢××֞׀֌ע×. ×××Ö·× ×, ך××Ö¿ × ×¢×¥ ×××¢× ××֞ךס ש×××Š× Netflow ×Öž×עך IPFIX ××× ×××עך ××סך×××. ×Öž×עך עס ××¢× ×¢× ×€×ַךש××× ×× ×עךע ×֞׀֌׊×עס ×€Ö¿×ַך ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס - sFlow, jFlow, cFlow, rFlow, NetStream, ×¢×ק, ×€×× ×××֞ס sFlow ××× ×× ××¢×š×¡× ×€×Öž×קס. עס ××× ××¢× ×××€ÖŒ ×××֞ס ××× ××¢×š×¡× ×Öž×€× ×עש×××Š× ×××š× ××× ×¢×š ××Ö·× ××Ö·×€×ַק××©×¢×š×¢×š× ×€×× × ×¢×¥ עק××××€ÖŒ××¢× × ×š×¢×× ×Š× ×××Ö·× ×× ×€×× ×××€ÖŒ××Ö·××¢× ×××ש×Ö·×. ×××֞ס ××¢× ×¢× ×× ××××€ÖŒ× ××׀עך×Ö·× ×¡×× ×Š××××©× Netflow, ×××֞ס ××× ××¢××××š× ×Ö· ××¢ ×€×ַק××Öž × ×֞ך××Ö·×, ××× sFlow? ××× ×××Öž×× ×× ×עךש×ך××Ö·×× ×¢×××¢××¢ ש×××¡× ×Öž× ×¢×¡. עךש×עך, Netflow ××× ××Ö·× ×׊עך-ק×ַס××Ö·××××× ×€×¢××עך, קע×× ×× ×€×ַך׀עס×××§× ×€×¢××עך ××× sFlow. ××× ×Š×××××× ×¡, ××× ××֞ס ××× ×× ××¢×š×¡× ××××××ק ××Ö·× ××× ××× ××עך ×€×Ö·×, sFlow ק×Ö·×עקץ ×Ö·××× ×עך××€×¢× ×¢ ס×Ö·××€ÖŒ×Ö·×× ××¢××¢××¢×ך×; ××× ×§×Ö·× ×ך×Ö·×¡× ×Š× ×× ×Ö·× ×¡×Ö·××€ÖŒ××¢× ×€Ö¿×ַך Netflow ××× IPFIX. ×××֞ס ××× ×עך ××××ק ׊××××©× ×××?
×××Ö·××ש×Ö·× ×Ö·× ××ך ××ַש×××¡× ×Š× ××××¢× ×¢× ××¢× ××× "
××× ××¢× ×§×Öž× ××¢×§×¡× ×€×× ××Öž× ×××֞ך×× × ×€×× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך××××, ××֞ס ×××× ×Ö·× ×¡×Ö·××€ÖŒ×Ö·×× ××¢××¢××¢××š× ××× ××¢××× × ×€ÖŒ×ַס×ק ×€Ö¿×ַך ×××עק××× × DDoS ×× ×€×××, סק×Ö·× ×× × ××× ×€×ַךש׀֌ך×××× ×××××¢ ק×Öž×, ×Öž×עך ×§×¢× ×€×ַך׀××š× ×Ö·××Öž××שע ×Öž×עך ×××××-×€ÖŒ×Ö·×§×§×¢× ×× ×€××× ×××֞ס ××¢× ×¢× × ××©× ×ַך××Ö·× ×עךע×× × ××× ×× ××ס×עך ×עש××§× ×€Ö¿×ַך ×Ö·× ×Ö·××ס×ס. ×× ×¡×Ö·××€ÖŒ××¢× ××¢××¢××¢××š× ××× × ××©× ××Öž×× ×Ö·××Ö· ××ס×Ö·××××Ö·× ××××ש××. ××× ××¢×, ×× ×§××× ×€×× ×××עק××Ö·× ×× ×€××× ××× ×€×× ×ך×××עךעך. ××Öž ××× ×Ö· ק×ךץ ךש××× ×€×× ××¢×©×¢×¢× ××©× ×××֞ס ×§×¢× ×¢× ×××× ×××עק××Ö·× ××× × ×¢×¥ ××¢××¢××¢××š× ×Ö·× ×Ö·××ס×ס ××ש×ך××.
××Öž×, ×¢×××¢××¢ ×¢×€Ö¿×¢× ×¢× ×ק×ך × ×¢××€××Öž×× ×Ö·× ×Ö·×××עך ×××¢× × ××©× ××Öž×× ××ך ×Š× ××Öž× ××֞ס, ××××Ö·× ×××× ××××€ÖŒ× ×ַך××¢× ××× ×Š× ××Ö·×××¢× ××¢××¢××¢××š× ××× ×Öž× ×€××š× ×קעך××ק ×Ö·× ×Ö·××ס×ס ××××£ עס ×€Ö¿×× ×Ö· IT ×€×× × ×€×× ×××× ×× ×. ×Š× ×××¢× ×××€×׊××š× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ×ךעץ ×××××š× ××××£ ××××€×, עס ××× × ××××ק ×Š× ×ק××××€ÖŒ ×× ×Ö·× ×Ö·×××עך ××× ×€×ַךש××× ×¢× ××ש×Ö·× × ××× ×Ö·××עך×××Ö·××, ×××֞ס ×××¢× ×××¢× ×××€×׊××š× ×¡×××עךסעק×ך××× ×€ÖŒ×š×Öž×××¢×ס ×××××š× ××××£ × ×֞ך××Ö·× ×Öž×עך ×× ×× × ×¢××€××Öž×× ×€×¢××עך, ××ַך××Ö·××¢×š× × ×֞ך××Ö·× ××Ö·×× ××× ×€×× ×ך×××¡× ××ק ××Ö·×× ×€Ö¿×× ×€×ַךש××× ××š×¢× ×× ××¢×××××¢× ×¡×¢ ק×××××, ×××"× ×.
×עך××עך, ×××× ××ך ××Öž× ×Ö· ×ך×ך×, ק×××Ö·×× Netflow ×Öž×עך IPFIX. ×Öž×עך ××€××× ×××× ×××× ××סך××× ×ַך××¢× ××××× ××× sFlow, ××× ××× ×¢×š ××Ö·× ××Ö·×€×ַק×שעךעך×, ××€××× ××× ××¢× ×€×Ö·× ××ך ×§×¢× ×¢× × ××¥ ×€×× ×¢×¡ ××× ×Ö· ×××עך×××× ×§×Öž× ×עקס×.
××× ×× ×××עך ×€×× 2019, ××× ×Ö·× ×Ö·××××× ×× ×§×××€ÖŒ×Ö·××××Ö·××× ×××֞ס ך×ס×שע × ×¢×¥ ××Ö·×× ×××Ö·×š× ××Ö·× ××Ö·×€×ַק××©×¢×š×¢×š× ××Öž×× ××× ×Ö·××¢ ×€×× ââ×××, ×Ö·×××¥ NSG, Polygon ××× Craftway, ×Ö·× ×Ö·×× ×¡× ×©×××Š× ×€Ö¿×ַך sFlow (××€ÖŒ××ת ××¢××ַקס, Natex, Eltex, QTech, Rusteleteh).
×עך ××××Ö·×עך קש×× ××ך ×××¢× ×€ÖŒ× ×× ××× ××× ×Š× ×× ×¡×ך×××¢× × ××××€× ×©×××Š× ×€Ö¿×ַך ×××עך×××× ×Š××עק×? ××× ×€×ַק×, ×× ×§×©×× ××× × ××©× ×עש××¢×× ××× ××× ×Š× ×š××××ק. ××Öž××¢×š× ××סך××× ×ÖŒ××¢× ×©××¢× ××ק ש×××Š× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס. ×עך××עך, ××× ×××Öž×× ×š×¢×€×֞ך×××××š× ×× ×§×©×× ×Ö·× ×עךש - ××× ××× ×¢×¡ ××¢×š×¡× ×¢×€×¢×§×××× ×Š× ××Ö·×××¢× ××¢××¢××¢××š× ×€×× ×Ö· ×××עך×××× ×€×× × ×€×× ×××× ×× ×? ×עך ×¢× ×׀עך ×××¢× ×××× ××Ö·× ×¥ ק××֞ך ××× ×עך ××Öž× - ××××£ ×עך ×ַקסעס ××ך××, ××× ××ך ×××¢× ××¢× 100% ×€×× ×Ö·××¢ ×€×ַךקעך, ××× ××ך ×××¢× ××Öž×× ××××××× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××¢×× ××× ×ת (MAC, VLAN, ׊×××× × ×©××Ö·×), ××× ××ך ×§×¢× ×¢× ××€××× ××Öž× ×××֞ך ×€ÖŒ2×€ÖŒ ×€×ַךקעך ׊××××©× ××× ×ת, ×××֞ס ××× ×§×š×××ש ×€Ö¿×ַך סק×Ö·× ×× × ×××עקש×Ö·× ××× ×€×ַךש׀֌ך××××× × ×€×× ×××××¢ ק×Öž×. ××× ×× ××ַךץ ××ך××, ××ך ×§×¢× ×€×©×× × ××©× ××¢× ×¢×××¢××¢ ×€×× ââ×× ×€×ַךקעך, ×Öž×עך ××××£ ×× ×€ÖŒ×¢×š×××¢×עך ××ך××, ××ך ×××¢× ××¢× XNUMX/XNUMX ×€×× ×Ö·××¢ ×××× × ×¢×¥ ×€×ַךקעך. ××עך ×××× ×€Ö¿×ַך ×¢×××¢××¢ ס××× ××ך ××Öž×× ×€×š×¢×× ××¢×××סעס ××××£ ×××× × ×¢×¥ ×××֞ס ××Öž×× ×Ö·××Ö·×§×¢×š× ×Š× "×ַך××Ö·× ××× ×ַך××ס××Ö·× ×" ×Öž× ××××€ÖŒ×ַס×× × ×× ×€ÖŒ×¢×š×××¢×עך, ××¢××Öž×× ×Ö·× ×Ö·×××××× × ×× ××¢××¢××¢××š× ×€×× ×¢×¡ ×××¢× × ××©× ××¢×× ××ך ע׀֌עס. ×עך××עך, ×€Ö¿×ַך ××ַקס×××× ×§×Ö·××עך×××ש, עס ××× ×š×¢×§×Ö·××¢× ××× ×Š× ××¢×× ××¢××¢××¢××š× ××Ö·×××× × ××××£ ×× ×ַקסעס ××ך××. ××× ×עך ××¢×××קעך ׊×××, עס ××× ×××× ×Š× ××××¢×š×§× ×Ö·× ××€××× ×××× ××ך ××¢× ×¢× ×עךע×× ×××¢×× ×××ך×××Ö·××××Ö·×××Öž× ×Öž×עך ק×Ö·× ×××× ×¢×š×, ××××€× ×©×××Š× ××× ×××× ×Öž×€× ××¢×€Ö¿×× ×¢× ××× ××Öž××¢×š× ×××ך×××Ö·× ×¡××××ש××, ×××֞ס ×Ö·××Ö·×× ××ך ×Š× ×§×Öž× ×ך×Öž×××š× ×€×ַךקעך ××Öž×š× ××××.
×Öž×עך ××× × ××× ×××׀ש×××× ×× ××¢××¢, ××× ××Ö·×š×€Ö¿× ×Š× ×¢× ××€Ö¿×¢×š× ×× ×§×©××: ×××֞ס ×××× ×× ××סך×××, ×€×××ש ×Öž×עך ×××ך×××Ö·×, ש×××Š× × ××©× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס? ×Öž×עך ××× ×× ×× ×§×××ש×Ö·× ×€ÖŒ×š×Öž×××××Ö·××Ö·× (××ש×, ××× ×× ××ַס××š× ×¡×¢×××Ö·× ×¥ ×Š× ×¢× ×©×ך ך×××××Ö·××××Ö·××)? ×Öž×עך ××× ×§×¢×š× ×¢×¡ ××××£ ×€××š× ×Š× ×××× ×§×€ÖŒ× ××ַסע (××֞ס ××Ö·×€ÖŒ×Ö·× × ××××£ ×¢××עךע ××Ö·×× ×××ַך×)? ×Š× ×¡×Öž××××¢ ××¢× ×€ÖŒ×š×Öž×××¢×, עס ××¢× ×¢× ×¡×€ÖŒ×¢×©×Ö·××××× ×××ך×××Ö·× ×¡×¢× ×¡×֞ךס (×€××ס ×¡×¢× ×¡×֞ךס), ×××֞ס ××¢× ×¢× ××¡×¢× ×©×Ö·×× ×€ÖŒ×š×Öž×¡× ×¡×€ÖŒ××××עךס ×××֞ס ×€×Öž×š× ×€×ַךקעך ×××š× ××× ××× ×ך×Öž×ק×Ö·×¡× ×¢×¡ ××× ×× ×€×Öž×š×¢× ×€×× ××××€× ×Š× ×× ××Ö·×××× × ××Öž××××¢. ××ת, ××× ××¢× ×€×Ö·× ××ך ××ַק×××¢× ×Ö·××¢ ×× ×€×š××××¢××¢× ×××֞ס ××ך ×עךע×× ×××¢×× ××××× ××× ××ַ׊××× × ×Š× ×€ÖŒ×ַק×Ö·× ××Ö·×€ÖŒ× ××ש×ך××. ×Ö·× ×××, ××ך ××Ö·×š×€Ö¿× ×Š× ×€Ö¿×ַךש×××× × ×× ××××× ×× ×Ö·××××Ö·× ××××ש×× ×€×× ××××€× ×Ö·× ×Ö·××ס×ס ××¢×× ×Öž××Öž×××¢, ×Öž×עך ×××× ×× ×××××××ש×Ö·× ×.
×× ×× ×עך ×€×× × ×××֞ס ××× ××××××ק ×Š× ××¢××¢× ×§×¢× ×××¢× ×עךע×× ×××¢×× ××××€× ×Ö·× ×Ö·××ס×ס ××ש×ך××. ×××× ××× ××ַ׊××× × ×Š× ×§×Ö·× ×××¢× ×©×Ö·× ×Ö·× ×××× ×€×× ×××©×¢× ×¢×š××××× × ×××עך×××× ××¢×©×¢×¢× ××©× ××ך × ××Š× ×× EPS ××¢×ך×ק (××¢×©×¢×¢× ×ש ׀֌עך סעק×× ××¢), ×עך ×ך××× ××× × ×× ×Öž× ×××¢× ×××¢× ×Š× ××¢××¢××¢××š× ×Ö·× ×Ö·××ס×ס; עס ××× ×š××€ÖŒ××××¡× ×××š× ×€×€ÖŒ×¡ (××××€× ×€ÖŒ×¢×š סעק×× ××¢). ××× ××× ××¢× ×€×Ö·× ×€×× EPS, עס ×§×¢× ×¢× × ×× ×××× ×§×Ö·×ק××Ö·×××××× ××× ×©×××Ö·××, ×Öž×עך ××ך ×§×¢× ×¢× ×֞׀֌ש×Ö·×Š× ×× ××¢×š× ×¢× ××¢×š× × ××עך ×€×× ×€Ö¿×¢××¢× ×××֞ס ×Ö· ××Ö·××× ×עך ×××× ×××©×¢× ×¢×š×××¥ ×××€ÖŒ×¢× ××× × ××××£ ×××Ö·× ×ַך××¢×. ××ך ×§×¢× ×¢× ××¢×€Ö¿×× ×¢× ×××©× ××××£ ×עך ××× ××¢×š× ×¢×¥ ××× ××¢×š× ×¢× ××¢×š× ×××Ö·××עס ×€Ö¿×ַך ×€×ַךש×××¢× ×¢ ×××׀֌ס ×€×× ×€×Ö·×š× ×¢××× × ××¢×××סעס ××× ×× ×Öž××, ×××֞ס ×××¢× ××Öž×× ××ך ×Š× ×֞׀֌ש×Ö·×Š× ×××֞ס ×××ס×Ö·× ×¡×× ××ך ××Ö·×š×€Ö¿× ×€Ö¿×ַך ×Ö·× ×Ö·××ס×ס ××ש×ך×× ××× ×××֞ס ×××עך ×ַךק×Ö·×עק×שעך ×××¢× ××××? ×עך ×€×Ö·×§× ××× ×Ö·× ×× IDS ×¡×¢× ×¡×¢×š ××× ××××××¢× ×Š× ×Ö· ×××עך ××Ö·× ×××××× ×Ö·× ×¢×¡ ×§×¢× ×¢× "׊××¢×", ××× ×× ××××€× ×§×Ö·×עק×עך ××× ×××× ×××××¢× ×¢ ×××××××ש×Ö·× × ×××֞ס ×××× ×××× ×€×ךש××× ×¢×. ×עך××עך, ××× ×ך××ס, ××¢×Öž×ך×Ö·×€×ק×Ö·××× ×€×× ×× ×עך××¢××××× × ×¢××××֞ךקס עס ××¢× ×¢× ×××ש×Ö·×××Ö·×× ×¢×××¢××¢ ק×Ö·×עק×עך×. ×××¢× ××× ××סקך××××
××ך × ××Š× ××× ××עך ×××××¢× ×¢ ×××××× × ××× ×Ö· × ×¢××€××Öž×× ××Öž× ×××֞ך×× × ×¡×ס××¢×
עס ××× ×§××֞ך ×Ö·× ×××¢× ×עךע×× ×××¢×× Netflow ×Ö·× ×Ö·××ס×ס ס×ס××¢××¢× ×€Ö¿×× ×Ö· ×××עך×××× ×€×× × ×€×× ×××× ×× ×, ×עך ××ַךק ××× × ××©× ××××××¢× ×Š× ×Ö· ×××× ×××××× × ×€Ö¿×× Cisco. ××ך ×§×¢× ×¢× × ××Š× ×××××¢ ××¢×©×¢×€× ××× ×€×š×× ×Öž×עך שעך××עך ס×Ö·××ש×Ö·× ×. עס ××× ××Ö·× ×¥ ××Öž×× ×¢ ×××× ××× ×Š××××š× ×× ×¡×Ö·××ש×Ö·× × ×€×× ×§×Öž×׀֌ע××××֞ךס ××× ×××ש׀××× ××××£ ×× Cisco ×××Öž×, ×Ö·××× ××× ×××¢× ××Öž×× ×Ö· ×××¡× ××עך×עך ×××¢×× ××× × ×¢×¥ ××¢××¢××¢××š× ×§×¢× ×¢× ×××× ×Ö·× ×Ö·××××× ××× ×Š×××× ×€×Öž×קס, ×¢× ××¢× ××× × ×Öž××¢×, ×Öž×עך × ×Öž× ×€×ַךש×××¢× ×¢ ××ש×ך×× - ס××ק ××× ELK.
SiLK ××× ×Ö· ××Ö·× × ×€×× ××ש×ך×× (×× ×¡×ס××¢× ×€Ö¿×ַך ××× ××¢×š× ×¢×-××ך×× ×××ס×) ×€Ö¿×ַך ×€×ַךקעך ×Ö·× ×Ö·××ס×ס, ××¢×××¢××Öž×€ÖŒ×¢× ×××š× ×× ××עך×ק×× ×¢×š CERT/CC ××× ×××֞ס ש××׊×, ××× ××¢× ×§×Öž× ××¢×§×¡× ×€×× ×××Ö·× × ×¡ ×ַך××ק×, Netflow (5 ××× 9, ×× ××¢×š×¡× ×€×Öž×קס ××עךס×עס), IPFIX ××× sFlow ××× × ××Š× ×€×ַךש××× ××××××Ö·××× (rwfilter, rwcount, rwflowpack, ×××"× ×) ×Š× ××ך××€××š× ×€×ַךש××× ×ַ׀֌עך××ש×Ö·× × ××××£ × ×¢×¥ ××¢××¢××¢××š× ××× ×¡×ך ×Š× ××¢××¢×§× ××××× ×עך ×€×× ×Ö·× ×Öž×עך×××× ×ַקש×Ö·× × ××× ×¢×¡. ××עך עס ××¢× ×¢× ×Ö· ×€ÖŒ×֞ך ×€×× ××××××ק ×€×× ×§×× ×Š× ××Öž×. SiLK ××× ×Ö· ××Ö·×€Ö¿×¢× ×©××š× ×ע׊××Ö·× ×××֞ס ׀֌עך׀×֞ך×× ×Öž× ×××× ×Ö·× ×Ö·××ס×ס ×××š× ×ַך××Ö·× ×§×Ö·××Ö·× ×× ××× ××֞ס (×××עקש×Ö·× ×€×× ICMP ×€ÖŒ×ַק××¥ ×ךעסעך ××× 200 ×××עס):
rwfilter --flowtypes=all/all --proto=1 --bytes-per-packet=200- --pass=stdout | rwrwcut --fields=sIP,dIP,iType,iCode --num-recs=15
× ×× ×××עך ××ַק×××¢×. ××ך ×§×¢× × × ××Š× ×× iSiLK GUI, ×Öž×עך ××֞ס ×××¢× × ××©× ××Ö·×× ×××× ××¢×× ×€×× ×ך×× ×עך, × ×֞ך ס×Ö·××××× × ×× ××××ש×××Ö·××Ö·×××ש×Ö·× ×€×× ×§×Š××¢ ××× × ××©× ×š××€ÖŒ××××¡× ×× ×Ö·× ×Ö·××ס×. ××× ××֞ס ××× ×× ×Š××××××¢ ×€×× ×. × ×× ×¢× ××¢× ××¢×©×¢×€× ×¡×Ö·××ש×Ö·× ×, ×××֞ס ××Öž×× ×©××× ×Ö· ××Ö·×š× ×Ö·× ×Ö·××ס×ס ××Ö·××¢, ×Ö·× ×Ö·××Ö·×× ×××עקש×Ö·× ×Ö·××עך×××Ö·××, ק×֞ך×ַס׀֌×Ö·× ××× × ×××֞ךק׀××Öž××, ×××"× × ×Š×-× ××Š× ××ש×ך××. ××֞ס ××× × ×× ××× ×Öž×עך ש××¢×× - ××֞ס ××× ×Ö· ש×ך×× ×€×× ×ÖŒ××¢× ×§××× ×€×š×× ×ע׊××Ö·× ×××֞ס ×ַס××× ×Ö·× ××ך ××××¡× ×××֞ס ×Š× ××Öž×, ××× ×¢×¡ ×××¢× × ×֞ך ××¢××€Ö¿× ××ך ××× ××¢× (××¢×©×¢×€× ××ש×ך×× ××¢× ×¢× ××××× ×קעך ×Öž×€×¢× ××ק ××××£ ×× ×§×Ö·××€ÖŒ×Ö·××× ×¡×× ×€×× ×××Ö·× × ×׊עךס, ××Öž×ש ××× ×××× ×××¢×š× ×¢××¢× ×Ö·× ×Ö·× ×Ö·××ס ×€Ö¿×ַךש×××× ××× ××× ×ס×עך ×× ××ַס×קס ×€×× × ×¢×¥ ×× ××עס××Ö·×××ש×Ö·× × ××× ××Öž× ×××֞ך×× ×). ××Öž××ך ××× ×Öž×עך ××××§×¢×š× ×Š× ×¡××ק. ×עך ×Ö·× ×Ö·×××¡× ×¡ ×ַך××¢× ×Š××§× ××× ×¢×¡ ק××§× ××× ××֞ס:
- ×€×֞ך×××××š× ×Ö· ××××€ÖŒ×Ö·××ַס×ַס. ××ך ×××× ×€Ö¿×ַךש×××× ×××֞ס ××ך ×××¢×× ×§××§× ×€Ö¿×ַך ××× × ×¢×¥ ××¢××¢××¢×ך×, ××××¡× ×× ××× ×Š×ק ×Ö·×ך×××××¥ ×××š× ×××֞ס ××ך ×××¢×× ×××¢× ×××€×׊××š× ×××עך ×Ö·× ×Ö·××Ö·××× ×Öž×עך ×ךעץ.
- ××××¢× ×Ö· ××Öž××¢×. × ×Öž× ×€×֞ך×××××š× ×Ö· ××××€ÖŒ×Ö·××ַס×ַס, ××ך ׀֌ך×Öž×ך×Ö·× ×¢×¡ ××× ×× ××¢×××¢ ×€ÖŒ××××Öž×, ש×Öž× ×Öž×עך ×× ×עךע ××ש×ך×× ×××֞ס ××¢× ×¢× × ××©× ×ַך××Ö·× ×עךע×× × ××× ×¡××ק.
- ×עס××× ×. ×××Š× ×§××× ×עך קעך ×Š× ×§×Öž× ×ך×Öž×××š× ×× ×§×¢×š×¢×§×× ×ַס ×€×× ××× ××עך ××××€ÖŒ×Ö·××ַס×ַס, ×××֞ס ××× ××ש××¢×××§× ×Öž×עך ך××€××××× ××× ×¡××ק ××××××Ö·××× ×¡××ַך××× × ××× 'ך××', 'ש××¢××', '×עק×'.
- ×Ö·× ×Ö·××ס×ס ×€×× ×€×ַק××ש ××Ö·××. ××× ×× ××ַס×ך××Ö·× ×֞׀֌עך×ַ׊××¢, ס××ק ××¢×׀֌ס ××× ×× ×Š× ×××¢× ×××€×׊××š× ×¢×€ÖŒ×¢×¡ ××× ×עך ×Ö·× ×Ö·×××¡× ×××× ×¢× ××€Ö¿×¢×š× ×× ×€Ö¿×š××× "×Š× ××ך ××Öž×× ××¢×€Ö¿×× ×¢× ×××֞ס ××ך ×עך×××ַך×?", "×Š× ×©××××¢× ×Š× ××× ××עך ××××€ÖŒ×Ö·××ַס×ַס?", "××× ×Š× ×š×¢××׊××š× ×× × ××עך ×€×× ×€×Ö·×ש ×€ÖŒ×Ö·××Ö·×××××?" ×Š× ×€Ö¿×ַך××¢×¡×¢×š× ×× ××ך×× ×€×× ××¢×š×§×¢× ×× ×? » ××× ×××× ×××××עך.
- ×€Ö¿×ַך×עסעך×× ×. ××× ×× ××¢×Š× ××× ×¢, ××ך ×€Ö¿×ַך××¢×¡×¢×š× ×××֞ס ××× ××¢×××¢× ××¢××× ×€×š×עך - ××ך ××Ö·×× ××¢××€ÖŒ××Ö·×עס, ×€Ö¿×ַך××¢×¡×¢×š× ××× ×Ö·×€ÖŒ××Ö·×××× ×× ×§×Öž×, ךע׀×֞ך×××××š× ××× ×עךק××¢×š× ×× ××××€ÖŒ×Ö·××ַס×ַס, ×¢×ק.
×עך ׊××§× ×××¢× ×××× ×××× ×Öž× ×××¢× ×××¢× ×Š× Cisco Stealthwatch, ××××× ×× ×ע׊××¢ ×Öž××Ö·××××¥ ×× ×€×× ×£ ס×ע׀֌ס ×Š× ×× ××ַקס××××, ך×××ס×× × ×× × ××עך ×€×× ×Ö·× ×Ö·×××¡× ×¢×š×š×֞ךס ××× ×× ×§×š×ס×× × ×× ×¢×€×¢×§××××ק××Ö·× ×€×× ××× ×Š×××¢× × ×××עקש×Ö·×. ×€Ö¿×ַך ×××ַש׀֌××, ××× SiLK ××ך ×§×¢× ×¢× ××ַך××Ö·××¢×š× × ×¢×¥ ס××Ö·××ס××ק ××× ×€×× ×ך×××¡× ××ק ××Ö·×× ××××£ ×××××¢ ×׀֌ס × ××Š× ××Ö·× ×-×עשך××× ×¡×§×š×׀֌ס, ××× ××× Cisco Stealthwatch עס ××× ×Ö· ××¢××××-××× ×€Ö¿×× ×§×Š××¢ ×××֞ס ××××× ××ס׀֌×××× ×Ö· שךעק ×××× × ×¢×¥ ×€×ַךקעך ×ÖŒ××× ×× ×עך×ַקש×Ö·× × ××× IP ×Ö·×ךעסעס ×€×× ×× ×××ַק××ס×.
×××× ××ך ×××× ××¢×עך ××× ×× "××ַ׊×Öž××" ×€ÖŒ×ך×Ö·××× ×€Ö¿×ַך ××××€× ×Ö·× ×Ö·××ס×ס ××××××××ך×, × ×Öž× ×× ××¢××Ö·×ךע ׀ך×× SiLK עס ×××¢× ×××× ×Ö· שעך×××ַךע ELK, ק×Ö·× ×¡×ס××× × ×€×× ×ך×× ×©×××¡× ×§×Ö·××€ÖŒ×Öž×× ×Ö·× ×¥ - Elasticsearch (×× ×עקס×× ×, ×××× ××× ××Ö·×× ×Ö·× ×Ö·××ס×ס), Logstash (××Ö·×× ×ַך××Ö·× ×©×š××Ö·× / ךע×××××Ö·×) ) ××× ×§×××Ö·× ×Ö· (××××ש×××Ö·××Ö·×××ש×Ö·×). × ×× ×¢× ××¢× ×¡××ק, ××× ××ך ×××× ×©×š××Ö·×× ×Ö·××¥ ×××, ELK ××× ×©××× ×€×××¢ ×€×ַך××ק ××××ךעך×× / ××Ö·××ש××× (×¢×××¢××¢ ××ַ׊×Öž××, ×¢×××¢××¢ × ×ש×) ×××֞ס ×Öž××Ö·×××× ×× ×Ö·× ×Ö·××ס×ס ×€×× × ×¢×¥ ××¢××¢××¢×ך×. ×€Ö¿×ַך ×××ַש׀֌××, ×× GeoIP ×€×××עך ××× Logstash ×Ö·××Ö·×× ××ך ×Š× ×€×ַך××× ×× ××Öž× ×××Öž×š×¢× IP ×Ö·×ךעסעס ××× ×××עך ××ש××Ö·×ך×Ö·×€×ק ×Öž×š× (ס××¢×Ö·×××××Ö·××ש ××× ××¢× ××¢××××-××× ×©×ך××).
ELK ×××× ××× ×Ö· ׀עך×× ×ך××ס ק×× ×××֞ס ××× ×§×Ö·××€ÖŒ××××× × ×× ×€×¢×× ××ק ק×Ö·××€ÖŒ×Öž×× ×Ö·× ×¥ ×€Ö¿×ַך ××¢× ××Öž× ×××֞ך×× × ×××××× ×. ×€Ö¿×ַך ×××ַש׀֌××, ×Š× ×ַך××¢×× ××× Netflow, IPFIX ××× sFlow ××ך ×§×¢× ×¢× × ××Š× ×× ××Öž××××¢
×שעת ELK ××× ×עך ע׀עק××××ק××Ö·× ××× ×§×Ö·×עק××× × ××××€× ××× ×××× ××× ×¢×¡, ×עך××××Ö·× ×€×¢×× ×š××Ö·× ×× ×Ö·×ך××××× ×Ö·× ×Ö·××××קס ×€Ö¿×ַך ×××עק××× × ×Ö·× ×Ö·××Ö·××× ××× ×ךעץ ××× × ×¢×¥ ××¢××¢××¢×ך×. ×Ö·× ×××, × ×Öž× ××¢× ××¢×× ×Š××§× ××סקך×××× ×××××, ××ך ×××¢× ××Öž×× ×Š× ×× ×××€ÖŒ×¢× ××Ö·× ××× ××ַשך××Ö·×× ××××¢× ××Öž××¢×ס ××× ××¢××Öž×× × ××Š× ×¢×¡ ××× ×× ×§×Ö·×××Ö·× ×¡×ס××¢× (עס ××¢× ×¢× ×§××× ××¢××××-××× ××Öž××¢×ס ××֞ך×).
עס ××¢× ×¢×, ×€×× ×§×ךס, ×עך ס×Ö·×€×ס××ַק××××× ×קס××¢× ×©×Ö·× × ×€Ö¿×ַך ELK, ×××֞ס ××Öž×× ×©××× ×¢×××¢××¢ ××Öž××¢×ס ×€Ö¿×ַך ×××עק××× × ×Ö·× ×Ö·××Ö·××× ××× × ×¢×¥ ××¢××¢××¢×ך×, ×Öž×עך ×Ö·××Ö· ×קס××¢× ×©×Ö·× × ×§×֞ס×× ××¢×× ××× ××Öž ×× ×§×©×× ××× ×Š× ×× ×©×€ÖŒ×× ××× ×××¢×š× ×× ×××× - שך××Ö·×× ×Ö· ×¢× ××¢× ××Öž××¢× ×××, ק×××€× ×××Ö·× ×××€ÖŒ××Ö·××¢× ×××ש×Ö·× ×€Ö¿×ַך ×××× ××Öž× ×××֞ך×× × ×ע׊××Ö·×, ×Öž×עך ק×××€× ×€×ַך××ק ×××××× × ×€×× ×× × ×¢××××֞ךק ×ך×Ö·×€×ק ×Ö·× ×Ö·××ס×ס ק××ַס.
××× ×Ö·×××¢××××, ××× ××Öž× × ××©× ×××¢×× ×Š× ××ַק×××¢× ××× ×× ××¢××Ö·××¢ ×Ö·× ×¢×¡ ××× ×עסעך ×Š× ×€×ַך××š×¢× ××¢× ××¢×× ××× ×§×××€× ×Ö· ×€×ַך××ק ×××××× × ×€Ö¿×ַך ××Öž× ×××֞ך×× × ×Ö·× ×Ö·××Ö·××× ××× ×ךעץ ××× × ×¢×¥ ××¢××¢××¢××š× (××ש×, Cisco Stealthwatch) ×Öž×עך ××¢×€Ö¿×× ×¢× ×¢×¡ ××× ××× ×§×ַס××Ö·×××× ×× ××¢×××¢. SiLK, ELK ×Öž×עך nfdump ×Öž×עך OSU ×€××Öž× ××ש×ך×× ×€Ö¿×ַך ××¢×עך × ××Ö· ס×ַק×Öž× ×¢ (××× ××× ×עךע×× ×××¢×× ×× ×ע׊××¢ ׊×××× ×€×× ×××
×Š× ×¡×Ö·×עך×××, ××× ×××Öž×× ××× ×Š× ×š×©××× ×× ×©×××¡× ×¢×Š×ת ×××֞ס ××ך ××Öž× × ×Öž××€×Öž××× ×××¢× ××ך ××××¢× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××Öž× ×××֞ך×× × ×€×× ×××× ×× ×¢×š××¢× ×× ×€×š×ַס×ך×ַק×שעך:
- ×Š× × ×× × ×֞ך ××Ö·××š×¢× ×¢×Š× ××× ×Š× ×× ×€ÖŒ×¢×š×××¢×עך! × ××Š× (××× ×§×××Ö·××) × ×¢×¥ ×× ×€×š×ַס×ך×ַק×שעך × ×× ××××× ×Š× ×ַך××עך׀××š× ×€×ַךקעך ×€×× ×€×× × × ×Š× ×€×× × ×, ×Öž×עך ×××× ×Š× ×Ö·×ךעס ס×××עךסעק×ך××× ×ש××.
- ××¢×š× ×¢× ×× ××××ס××× × ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××Öž× ×××֞ך×× × ×עק×Ö·× ×××Ö·×× ××× ×××× × ×¢×¥ ××סך××× ××× × ××Š× ×××.
- ×€Ö¿×ַך ×× ×¢×š××¢× ××Öž× ×××֞ך×× ×, ×××עך××Ö·× × ×Š× ××¢××¢××¢××š× ×Ö·× ×Ö·××ס×ס - עס ×Ö·××Ö·×× ××ך ×Š× ××¢××¢×§× ×ַך×××£ ×Š× 80-90% ×€×× ×Ö·××¢ × ×¢×¥ ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ×× ×¡×Ö·××Ö·× ×¥, ×שעת ××ך ××Öž× ×××֞ס ××× ×××××¢×××¢× ×××¢× ×§×Ö·×€ÖŒ×שעך×× × × ×¢×¥ ×€ÖŒ×ַק××¥ ××× ×©×€ÖŒ×Öž×š× ×€ÖŒ××Ö·×¥ ×€Ö¿×ַך ס××֞ך×× × ×Ö·××¢ ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××¢×©×¢×¢× ×ש×.
- ×Š× ××Öž× ×××֞ך ×€××Öž××, × ××Š× Netflow v9 ×Öž×עך IPFIX - ××× ×Š×ש××¢×× ×עך ××× ×€Ö¿×֞ך××ַ׊××¢ ××× ×Ö· ×××עך×××× ×§×Öž× ××¢×§×¡× ××× ××Öž×× ××ך ××Öž× ×××֞ך × ×× ××××× IPv4, ×Öž×עך ×××× IPv6, MPLS, ×¢×ק.
- × ××Š× ×Ö·× ×Ö·× ×¡×Ö·××€ÖŒ××¢× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž× - עס ××× ×עך ××× ×€Ö¿×֞ך××ַ׊××¢ ×€Ö¿×ַך ×××עק××× × ×ךעץ. ×€Ö¿×ַך ×××ַש׀֌××, Netflow ×Öž×עך IPFIX.
- ק×Öž× ×ך×Öž×××š× ×× ××ַסע ××××£ ×××× × ×¢×¥ ××סך××× - עס ×§×¢× × ××©× ×××× ×××××ת ×Š× ×©×¢×€ÖŒ× ×× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž× ××××. ××¢×š× ×Öž× ××Ö·×ך×Ö·××× × ××Š× ×××ך×××Ö·× ×¡×¢× ×¡×֞ךס ×Öž×עך Netflow Generation Appliance.
- ×× ×¡×ך×××¢× × ×§×Öž× ×ך×Öž× ×¢×š×©×עך ×€×× ×Ö·××¢ ××××£ ×× ×ַקסעס ××ך×× - ××֞ס ×××¢× ××¢×× ××ך ×× ××¢××¢×× ×××× ×Š× ××¢× 100% ×€×× ×Ö·××¢ ×€×ַךקעך.
- ×××× ××ך ××Öž× ×§××× ×ך××š× ××× ××ך × ××Š× ×š×ס×ש × ×¢×¥ עק××××€ÖŒ××¢× ×, ק×××Ö·×× ×××× ×¢×š ×××֞ס ש×××Š× ××××€× ×€ÖŒ×š×Öž××֞ק×Öž×ס ×Öž×עך ××× SPAN/RSPAN ×€ÖŒ×֞ךץ.
- ק×Ö·××××× ×× ×ך××ש×Ö·× / ××Ö·×€×Ö·×× ×××עקש×Ö·× / ×€×ַך××××× × ×¡×ס××¢××¢× ××× ×× ×¢××ש×Ö·× ××× ××××€× ×Ö·× ×Ö·××ס×ס ס×ס××¢××¢× ××× ×× ×× ×¢×š××¢× × ×¢×¥ (×ַך××Ö·× ×עךע×× × ××× ×× ×××××§× ×¡).
×××¢×× ××¢× ×ע׊×× ×¢×Š×, ×××× ××× ××¢×× ×Ö·× ××××ס×ך×ַ׊××¢, ×××֞ס ××× ××Öž× ×©××× ×€×š×עך ××¢××¢××. ××ך ××¢× ×Ö·× ×××× ××× ×Ö·×עך ×× ×¡×סק×Öž ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××× ×¡× ×ÖŒ××¢× ××¢××Ö·×ךע ××¢×××× ×××Ö·× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××Öž× ×××֞ך×× × ×¡×ס××¢× ××××£ ×עך ××××¢ ×€×× ââ×× ×ך××ש×Ö·× ×××עקש×Ö·× ×¡×ס××¢××¢× ××× ×ס×××¢ ××¢×××Öž×ס, ×××Š× ××× ×ַק×Ö·×× ×¥ ×€Ö¿×ַך ××××× 20% ×€×× ×× ×¡×Ö·××Ö·× ×¥. ×× ×× ×עך 20% ×€××× ××××£ ××××€× ×Ö·× ×Ö·××ס×ס ס×ס××¢××¢×, ×××֞ס ס×Ö·×××שעסץ ×Ö·× ×× ×¡×Ö·××ש×Ö·× × ××¢× ×¢× × ××©× ×Ö· ק×ַ׀֌ך××, ×Öž×עך ×Ö· ×€×ַק××ש ×ע׊××Ö·× ××× ×× ×ַק×××××××¢×× ×€×× ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××Ö·××× ×× ×ס ×€×× ×Ö· ××Öž××¢×š× ×€×Ö·×š× ×¢××× ×. ×עך׊×, ××ך ××Öž×× ×× ××¢×š×¡× ××××××ק ××Ö·× ×€Ö¿×ַך ×××עך ×××€ÖŒ××Ö·××¢× ×××ש×Ö·× - × ×¢×¥ ×× ×€×š×ַס×ך×ַק×שעך, ×× ××עס×××Ö·× ×¥ ××× ×××֞ס ×§×¢× ×¢× ×××× ××××Ö·×עך ׀֌ך×Öž×עק××¢× ×××š× ×ַס××× ×× × ××× ×€Ö¿×֞ך××ַ׊××¢ ×××עך×××× ××Öž× ×××֞ך×× × ×€×Ö·× ×קש×Ö·× × ×Š× ×× × ×¢×¥.
××× ×¡×€ÖŒ×ַס××€×ק×× ××× × ××©× ×Öž× ×š××š× ×× ××¢××¢ ×€×× ââך×ס׀֌×Ö·× ××× × ×Š× ×Ö·× ×Ö·××Ö·××× ×Öž×עך ×ךעץ ××××¢× ×Ö·×€××× ××× × ×¢×¥ ×€××Öž××, ×Öž×עך ××× ×ך×Ö·××× ×Ö·× ×¢×¡ ××× ×©××× ×§××֞ך ×Ö·× ××Öž× ×××֞ך×× × ××Öž× × ××©× ×¡××£ ××××× ××× ×× ×××עקש×Ö·× ×€×× ×Ö· ס×ַק×Öž× ×¢. עס ××Öž× ×××× × ××××¢××× ××¢× ×××š× ×Ö· ×¢× ×׀עך ××× ×€ÖŒ×š×¢×€×¢×š×Ö·××× ××× ×Ö·× ×Öž××Ö·××Ö·××ק ×Öž×עך ×Öž××Ö·×××××× ××Öž××¢. ××עך ××֞ס ××× ×Ö· ××¢××¢ ×€Ö¿×ַך ×Ö· ××Ö·××× ×עך ×ַך××ק×.
× ×Öž× ××× ×€×ך××׊××¢:
××ַשך××Ö·××× × ×€×× Cisco IOS Netflow × ×¢××€××Öž×× ×©×××Š× ××Ö·×ך××¥ ××× ×€×ַךש××× ×¡×סק×Öž ס×Ö·××ש×Ö·× × ×××× ×Š× ×§×Ö·× ×€×××עך × ×¢××€××Öž×× ××××£ ×€×ַךש××× ×¡×סק×Öž ×€ÖŒ××Ö·××€×֞ך×ס sFlow ק×Ö·×××× ××× ××Ö·× × ××Š× Stealtjwatch, SiLK ××× ELK ×Š× ×Ö·× ×Ö·×××× Netflow ×€Ö¿×× ×Ö· ×××עך×××× ×€ÖŒ×¢×š×¡×€ÖŒ×¢×§×××× SiLK ×××¢×××××× ×ך××-××× ××¢×š× ×××Ö·× ×€×ךעך ×Š× × ××Š× SiLK ××× ××Öž× ×¡ ×€×× ×××ש׀××× Logstash Netflow ××Öž××××¢ ס×סק×Öž שך××-××ך×-שך×× ×××× ×Š× × ×¢××€××Öž×× ×Ö·× ×Ö·××ס×ס ××× ELK ×Ö·× ×Ö·××ס×ס ×€×× NetFlow v.9 Cisco ASA × ××Š× Logstash (ELK) ס×סק×Öž ס××¢×××××Ö·××ש ×××××× ×
׀֌ס. ×××× ×¢×¡ ××× ×ך×× ×עך ×€Ö¿×ַך ××ך ×Š× ××¢×š× ×Ö·××¥ ×××֞ס ××× ××¢×××¢× ×עשך××× ×××××, ××ך ×§×¢× ×¢× ××¢× ×× ×©×¢×-××Ö·× × ×€ÖŒ×š×¢××¢× ××ך×× × ×××֞ס ××× ××¢×××¢× ×× ×קעך ×€×× ××¢× ××Öž×.
×ק×ך: www.habr.com