端口是信息進出任何系統(tǒng)的點。掃描端口以發(fā)現(xiàn)系統(tǒng)中的任何環(huán)形孔稱為端口掃描。系統(tǒng)中可能存在黑客攻擊和獲取關(guān)鍵信息的弱點。這些點應(yīng)該被識別并防止任何濫用。常見的Port Scanning類型：
1、Strobe: Scanning of known services.
2、UDP: Scanning of open UDP ports
3、Vanilla: In this scanning the scanner attempts to connect to all 65,535 ports.
4、Sweep: The scanner connects to the same port on more than one machine.
5、Fragmented packets: The scanner sends packet fragments that get through simple packet filters in a firewall
6、Stealth scan: The scanner blocks the scanned computer from recording the port scan activities.
7、FTP bounce: The scanner goes through an FTP server in order to disguise the source of the scan.
更多關(guān)于網(wǎng)絡(luò)安全培訓的問題，歡迎咨詢千鋒教育在線名師。千鋒教育擁有多年IT培訓服務(wù)經(jīng)驗，采用全程面授高品質(zhì)、高體驗培養(yǎng)模式，擁有國內(nèi)一體化教學管理及學員服務(wù)，助力更多學員實現(xiàn)高薪夢想。
京公網(wǎng)安備 11010802030320號