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一、Slow HTTP Denial of Service Attack


  • 方法一:以Apache來說的話,可安裝套件 Mod_Antiloris。
1. 下載檔案

cd /usr/local/src
tar -xvjf mod_antiloris-0.4.tar.bz2
cd mod_antiloris-*
apxs -a -i -c mod_antiloris.c

2. 重啟apache
service httpd restart

3. 檢查是否有掛載mod_antiloris
httpd -M | grep antiloris

  • 方法二:更改防火牆設定

      iptables -I INPUT -p tcp --dport 80 \ -m connlimit --connlimit-above 20 --connlimit-mask 40 -j DROP

二、RC4 cipher suites detected、SSL weak ciphers


 SSLProtocol all -SSLv2 -SSLv3
 SSLHonorCipherOrder on
 # Compression is disabled by default on my distribution (CentOS 6)
 # SSLCompression off

三、The FREAK attack (export cipher suites supported)

四、SSL certificate public key less than 2048 bit

openssl genrsa -out test.key 2048
openssl genrsa -des3 -out test.key 2048
openssl req -new -key test.key -out test.csr