Qualified Linux OPS personnel will be the 30-channel shell programming surface questions and explanations

Super depth of the shell advanced programming practice, as of the current Shell programming courses in the domestic training institutions The most fine courses, do not believe in the level of students to see the performance.

course cows are not cattle, not to see the teacher, schedule, but to see the level of training students, at present, all free of the partners hurriedly see AH.

Enterprise Combat Problem 6: Please use at least two ways to achieve!
Write a script to solve the DOS attack production case
Tip: Depending on the number of web logs or network connections, monitoring when an IP concurrent connection number or a short time PV reached 100, that is, call the firewall command to block the corresponding IP, monitoring frequency every 3 minutes. The firewall command is: iptables-i input-s 10.0.1.10-j DROP. Bone Training

Qualified Linux OPS personnel will be the 30-channel shell programming surface questions and explanations