长安“战疫”网络安全卫士守护赛 writeup WHT 战队 WRITEUP
白帽子社区
共 12933字，需浏览 26分钟
· 2022-01-12
本文来自“白帽子社区知识星球”
作者：WHT战队
题目一 ez_Encrypt
操作内容:
提取/public/web123 内容，文件为 zip 的 base64 加密
对/app/controller/Index.php 进行运行即可得到 flag
flag 值:
cazy{PHP_ji4m1_1s_s00000_3aSyyyyyyyyyyy}
题目二 Ez_Steg
操作内容:
六位数字密码爆破
解压压缩包，得到一个 aes 加密的文件和一个 steg.pyc 文件。该隐写为剑龙隐写，使用工具解密
根据得到的 key 对 aes 进行解密:
flag 值:
cazy{Em0j1s_AES_4nd_PyC_St3g_D0_yoU_l1ke}题目三 binary
操作内容:
jadx 进行反编译
猜测字符串为 ascii 编码，编写脚本进行解码
data = [77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 120, 77,68, 69, 120, 77, 84, 69, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 65, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 65, 120, 77, 84, 65, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 70, 120, 117, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 70, 120, 117, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 86, 120, 117, 77, 84, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 84, 65, 119, 77, 70, 120, 117, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 65, 120, 77, 68, 65, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 84, 65, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 65, 120, 77, 70, 120, 117, 77, 84, 69, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 70, 120, 117, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 69, 119, 77, 68, 65, 120, 77, 84, 65, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 65, 120, 77, 68, 65, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 65, 120, 77, 84, 65, 120, 77, 68, 65, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 65, 119, 77, 68, 69, 120, 77, 84, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 84, 69, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 86, 120, 117, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 69, 119, 77, 70, 120, 117, 77, 68, 69, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 68, 65, 120, 77, 68, 65, 120, 77, 68, 69, 120, 77, 86, 120, 117, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 65, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 65, 119, 77, 70, 120, 117, 77, 84, 65, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77,84, 69, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 65, 120, 77, 84, 65, 120, 77, 70, 120, 117, 77, 68, 65, 120, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 68, 69, 119, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 65, 120, 77, 84, 65, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 65, 120, 77, 84, 69, 120, 77, 86, 120, 117, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 65, 120, 77, 84, 69, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 65, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 70, 120, 117, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 65, 119, 77, 84, 69, 120, 77, 68, 65, 120, 77, 84, 69, 119, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 86, 120, 117, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 120, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 68, 69, 119, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 86, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 86, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 120, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 65, 119, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 69, 120, 77, 70, 120, 117, 77,68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 65, 120, 77, 84, 69, 120, 77, 68,69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 68, 65, 120, 77, 84, 65, 119, 77, 65, 61,61]for i in range(0,len(data)): print(chr(data[i]),end="")
执行结果为:
MDAwMDAwMDEwMTExMDAwMDAwMDAxMTExMTEwMTExMDAwMDAwMFxuM DExMTExMDEwMTEwMTAxMDExMTExMDAwMTExMDExMDExMTExMFxuMDEwMD AxMDEwMDAwMTExMTAwMDExMTAxMDExMDExMDEwMDAxMFxuMDEwMDAxM DExMDAwMDAxMTAwMDExMTAwMDAwMTAxMDEwMDAxMFxuMDEwMDAxMDEx MTAxMTAxMTAwMTEwMTEwMTAxMTExMDEwMDAxMFxuMDExMTExMDEwMTExM DEwMDAwMDAwMTAwMTAwMDAxMDExMTExMFxuMDAwMDAwMDEwMTAxMDE wMTAxMDEwMTAxMDEwMTAxMDAwMDAwMFxuMTExMTExMTEwMDEwMDAwMD AwMDEwMDExMDAxMTExMTExMTExMVxuMTEwMDAxMDEwMTAxMDAwMDEwM TExMTExMDEwMDAwMDAxMTAwMFxuMDEwMTEwMTAwMDExMDAxMDAxMDAw MDEwMDExMDEwMTAxMTEwMVxuMTAxMTAwMDAwMTAwMTExMTAwMTEwMDAxMTAxMDAwMDAxMDAxMFxuMTExMDExMTExMTExMDAxMDEwMTEwMTAwMDEx MDEwMTAxMTEwMFxuMTAxMDExMDAwMTExMDAwMDAwMDExMDEwMDAwMD AwMDAwMDAxMFxuMDExMDEwMTAwMTAwMDEwMDAxMTAxMTEwMTAxMTEwM TExMTEwMVxuMDAxMDEwMDEwMDExMTExMTEwMTExMDAwMDExMDAxMDEw MDAxMFxuMDAxMDAwMTEwMTExMDExMDExMDAxMTAwMTEwMDExMDAxMTEw MVxuMTExMDEwMDExMDAwMTExMTExMTAxMTAxMDAxMTAwMDAwMDAxMFxu MDAwMDExMTAxMDEwMDAxMTEwMDAwMDEwMTEwMTExMTExMDExMVxuMTE wMTEwMDExMDEwMTEwMTAwMTEwMDAxMDEwMDExMDAwMDEwMFxuMDEwM TAwMTAwMTExMTAwMTAwMDAwMTAwMTExMDAxMDAxMDExMVxuMDEwMTAx MDAxMTAwMDExMTAwMDExMDAxMDAwMDAxMDEwMTAwMFxuMTAwMTEwMTE xMTEwMTExMDExMDAxMDAxMTExMTEwMTAxMTEwMVxuMTEwMTEwMDAxMDEx MTAwMDAwMDEwMTExMDExMDAwMTAxMTAxMFxuMDAxMTAwMTAwMDExMTE wMTEwMDAxMTExMDEwMDEwMDExMTEwMVxuMDEwMTAwMDAwMTExMDEwM TExMDExMDEwMTExMTExMDEwMDAxMFxuMDEwMTAxMTAxMTAwMTAwMTAwM DAwMDExMDEwMDAxMDAxMTExMVxuMDExMDEwMDAxMDAwMTExMDAxMDEx MDAxMTAxMTExMTAwMTEwMFxuMDExMTAwMTExMTEwMDAwMDAxMDExMDEx MDExMTAwMTExMTEwMFxuMDEwMDExMDAxMDExMDAxMDEwMDAxMDExMTAx MTAwMDAwMDAwMFxuMTExMTExMTEwMTAxMTAwMTExMDAxMTEwMDEwMTAx MTEwMTAxMVxuMDAwMDAwMDExMTAwMDExMTAxMTAxMDExMDAwMTAxMDE wMDEwMFxuMDExMTExMDExMTAwMTEwMTAxMDExMDEwMTEwMDAxMTEwMTE xMVxuMDEwMDAxMDEwMDExMDAwMDExMDAxMTAxMDAwMDAwMDAwMDAxM FxuMDEwMDAxMDEwMTExMTEwMTEwMDAxMTExMTExMTExMDEwMDExMVxuM DEwMDAxMDEwMTEwMTExMTExMTEwMDAwMDAxMDEwMTAxMDExMFxuMDExM TExMDExMTExMTAwMDEwMTEwMTAwMTExMTAwMDExMDExMFxuMDAwMDAwM DExMTExMTAxMTExMDExMDAwMDAwMDEwMDAxMTAwMA==
利用工具进行 base64 解码:
得到二进制字符串，还有换行符，猜测是二维码，编写脚本解析:
str="0000000101110000000011111101110000000011111010110101011111000111011011111001000101 00001111000111010110110100010010001011000001100011100000101010001001000101110110110 01101101011110100010011111010111010000000100100001011111000000001010101010101010101 01010000000111111110010000000010011001111111111111000101010100001011111101000000110 00010110100011001001000010011010101110110110000010011110011000110100000100101110111 11111001010110100011010101110010101100011100000001101000000000000100110101001000100 01101110101110111110100101001001111111011100001100101000100010001101110110110011001 10011001110111101001100011111110110100110000000100000111010100011100000101101111110 11111011001101011010011000101001100001000101001001111001000001001110010010111010101 00110001110001100100000101010001001101111101110110010011111101011101110110001011100 00001011101100010110100011001000111101100011110100100111101010100000111010111011010 11111101000100101011011001001000000110100010011111011010001000111001011001101111100 11000111001111100000010110110111001111100010011001011001010001011101100000000011111 11101011001110011100101011101011000000011100011101101011000101010010001111101110011 01010110101100011101111010001010011000011001101000000000001001000101011111011000111 11111110100111010001010110111111110000001010101011001111101111110001011010011110001 101100000000111111011110110000000100011000"MAX = 37img = Image.new("RGB",(MAX,MAX)) i=0for y in range(0,MAX):for x in range(0,MAX):if str[i] == '1':img.putpixel([x,y],(0,0,0))else:img.putpixel([x,y],(255,255,255)) i=i+1img.show()
得到二维码图片，扫一扫得到 flag
flag 值:
flag{932b2c0070e4897ea7df0190dbf36ece}题目四 no_can_no_bb
操作内容:
import randomfrom Crypto.Util.number import long_to_bytes from Crypto.Cipher import AESdef pad(m):tmp = 16-(len(m)%16)return m + bytes([tmp for _ in range(tmp)])def encrypt(m,key):aes = AES.new(key,AES.MODE_ECB)return aes.encrypt(m)def decrypt(c, key):aes = AES.new(key,AES.MODE_ECB)return aes.decrypt(c)c= b'\x9d\x18K\x84n\xb8b|\x18\xad4\xc6\xfc\xec\xfe\x14\x0b_T\xe3\x1b\x03Q\x96e\x9e\xb8MQ \xd5\xc3\x1c'for i in range(1, 1<<20 + 1):key = pad(long_to_bytes(random.randrange(1,1<<20)))flag = decrypt(c, key)if flag[:5] ==b'cazy{':print(flag)
flag 值:
cazy{n0_c4n,bb?n0p3!}题目五 LinearEquations
操作内容:
from Crypto.Util.number import long_to_bytesimport gmpy2data = [2626199569775466793, 8922951687182166500, 454458498974504742, 7289424376539417914, 8673638837300855396]n = 10104483468358610819r = []for i in range(10):r.append([])for j in range(10):r[i].append(0)for i in range(3):for j in range(3):r[i][j] = data[i + j]for i in range(2):for j in range(3):r[i][j] = (r[i][j] - r[i + 1][j]) % nk = gmpy2.invert(r[0][0], n)for j in range(3):r[0][j] = (r[0][j] * k) % nk = r[1][0]for j in range(3):r[1][j] = (r[1][j] - k * r[0][j]) % nk = gmpy2.invert(r[1][1], n)for j in range(3):r[1][j] = (r[1][j] * k) % nk = r[0][1]for j in range(3):r[0][j] = (r[0][j] - k * r[1][j]) % n #解出a和b#用a和b求ca = 8175498372211240502b = 5490290802446982981c = data[2] - a * data[0] - b * data[1]c=c%nprint(long_to_bytes(b) + long_to_bytes(a) + long_to_bytes(c))
flag 值:
cazy{L1near_Equ4t1on6_1s_34sy}
题目六 no_cry_no_can
操作内容:
c = b'def decrypt(flag,key):block_len = len(flag) // len(key) + 1new_key = key * block_lenreturn bytes([i^j for i,j in zip(flag,new_key)])flag = decrypt(c, key)print(flag)
flag 值:
cazy{y3_1s_a_h4nds0me_b0y!}题目七 无字天书
操作内容:
从流量包中提取 1.zip
使用 whitespace 对 key.ws 进行解密
Flag.txt 为 snow 隐写，key 为上面解出的 key
flag 值:
cazy{C4n_y0u_underSt4nd_th3_b0oK_With0ut_Str1ng}题目八 朴实无华的取证
操作内容:
对 raw 进行文件扫描，并寻找 flag 文件
提取 flag.png
根据内容猜测是凯撒密码:
flag 值:
cazy{Xian_will_certainly_succeed_in_fighting_the_epidemic}题目九 西安加油
操作内容:
从流量包中提取 hint.txt 和 secret.txt。对 hint.txt 进行 base32 解码:
Secret 为 zip 文件的 base64 编码
查看压缩包，根据 hint 的解密内容进行拼图
flag 值:
cazy{make_XiAN_great_Again}题目十 RCE_No_Para
操作内容:
无参 rce 过滤 session,end,next,header 和 dir。构建payload:/?b=phpinfo();&code=eval(reset(current(get_defined_vars())));
通过参数 b 进行 rce
flag 值:
flag{4c217b2f6b92bf949d2cf10fdfbdbf6f}
题目十一 八卦迷宫
操作内容:
走迷宫游戏
根据迷宫路线得到 flag，注意前缀
flag 值:
cazy{zhanchangyangchangzhanyanghechangshanshananzhanyiyizhanyianyichanganyang}
如果觉得本文不错的话，欢迎加入知识星球，星球内部设立了多个技术版块，目前涵盖“WEB安全”、“内网渗透”、“CTF技术区”、“漏洞分析”、“工具分享”五大类，还可以与嘉宾大佬们接触，在线答疑、互相探讨。
▼扫码关注白帽子社区公众号&加入知识星球▼
评论
图解操作系统、网络、计算机组成PDF下载！
我去年去面试的时候发现字节跳动、腾讯这类大厂非常非常重视计算机基础，像计算机网络、操作系统都是它们的重点。我当时因为计算机基础知识准备的还可以才拿到了这些大厂的 Offer!今天就给大家分享一下我之前面试经常看的一些关于计算机基础的 PDF 资料!图解计算机系统《图解系统》主要是操作系统的内容比较多
java1234
0
InfiniBand网络、HDR和IB在超算中的应用实践
InfiniBand（IB）是由InfiniBand贸易协会（IBTA）建立的先进计算机网络通信标准。它在高性能计算（HPC）中的广泛采用归功于它能够为网络传输提供卓越的吞吐量、带宽和低延迟。InfiniBand是计算系统内部和外部的关键数据连接。无论是通过直接链路还是通过网络交换机进行互连，Inf
架构师技术联盟
10
Linux 配置和管理网络接口的基本命令
更多Python学习内容：ipengtao.com在Linux系统中，网络接口的配置和管理是系统管理员日常工作的一部分。了解如何有效地使用命令行工具进行网络接口配置是至关重要的。本文将详细介绍一些基本的Linux网络接口管理命令，提供详实的示例代码，帮助管理员更全面地了解和掌握这些工具。ifconf
良许Linux
0
全网最全网络基础思维导图（38张）
来源：架构师技术联盟计算机网络基础知识点多且杂，想要系统地学习，思维导图肯定是必不可少的。今天整理了38张思维导图，帮助你轻松理清思路，快速掌握关键内容。建议你收藏起来慢慢看，在看过之后最好能重新动手画一画，让计算机网络知识在你的大脑中连接起来。 01 TCP/IP网
良许Linux
0
这个网络爬虫代码，拿到数据之后如何存到csv文件中去？
点击上方“Python爬虫与数据挖掘”，进行关注回复“书籍”即可获赠Python从入门到进阶共10本电子书今日鸡汤渚云低暗度，关月冷相随。大家好，我是皮皮。一、前言还是昨天的那个网络爬虫问题，大佬们，帮忙看看这个网络爬虫代码怎么修改？那个粉丝说自己不熟悉pandas，用pandas做的爬虫，虽然简洁
Python爬虫与数据挖掘
4
这些网络知识你清楚吗？一切都要从MTU 和 MSS 说起
推荐一个原创技术号-非科班大厂码农，号主是机械专业转行进入腾讯的后端程序员！最近因为遇到了一个和 MSS 有关的问题，所以花了很多时间学习相关的东西。过程中又发现网上有很多相关的内容是错误的，或者介绍的东西其实现实世界已经不用了。（我看到这些资料的时候有了无数的疑问，然后又花了很长时间，这些疑问现在
码农有道公众号
10
报告！这里发现了一个赛博炼丹的神级平台！
众所周知，“赛博炼丹”是一个AI开发研究领域古老又神秘的活动，它往往对炼丹平台有很高的要求。如果你也是一路从“炼丹小白”成长到“资深AI算法工程师”，那你一定懂我在说什么？说好了，天台见！ 下面这些问题，你是不是也都遇到过
机器学习初学者
10
100个网络知识，懂一半绝对高手！
1）什么是链接？链接是指两个设备之间的连接。它包括用于一个设备能够与另一个设备通信的电缆类型和协议。2）OSI 参考模型的层次是什么？有 7 个 OSI 层：物理层，数据链路层，网络层，传输层，会话层，表示层和应用层。3）什么是骨干网？骨干网络是集中的基础设施，旨在将不同的路由和数据分发到各种网络。
数据中心运维管理
10