ping 服务器丢包非常严重
64 bytes from 139.196.80.42: icmp_seq=275 ttl=54 time=22.048 ms
Request timeout for icmp_seq 276
Request timeout for icmp_seq 277
64 bytes from 139.196.80.42: icmp_seq=278 ttl=54 time=24.629 ms
Request timeout for icmp_seq 279
64 bytes from 139.196.80.42: icmp_seq=280 ttl=54 time=18.579 ms
Request timeout for icmp_seq 281
Request timeout for icmp_seq 282
Request timeout for icmp_seq 283
Request timeout for icmp_seq 284
64 bytes from 139.196.80.42: icmp_seq=285 ttl=54 time=17.236 ms
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[font='Helvetica Neue', 'Luxi Sans', 'DejaVu Sans', Tahoma, 'Hiragino Sans GB', STHeiti, 'Microsoft YaHei']
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从 /var/log/message可以看出很多下面大输出,possible SYN flooding on port 80 Sending cookie根据网上的解决方案:echo 2048 > /proc/sys/net/ipv4/tcp_max_syn_backlog还是不行
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