为什么每个浏览器的 User-Agent 都有 Mozilla 字样？
window上MTU值变为1480原因探讨
Jeffrey.Deng@Jeffreydeng-pc /d/User/Desktop
λ netsh interface ipv4 show subinterfaces
MTU MediaSenseState 传入字节 传出字节 接口
------ --------------- --------- --------- -------------
1480 1 1203203469 112412547 WLAN
4294967295 1 0 265248 Loopback Pseudo-Interface 1
1480 5 0 0 以太网
1480 1 2952 151866 VMware Network Adapter VMnet1
1480 1 0 182123 VMware Network Adapter VMnet8
1480 5 0 0 SSTAP 1GZIP压缩原理：LZ77算法与Huffman算法
java.net.SocketException 断开的管道 (Write failed) - c3p0 / DBCP 连接池
com.mysql.jdbc.CommunicationsException
MESSAGE: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.net.SocketException
MESSAGE: 断开的管道 (Write failed)逻辑回归 — 归一化优化
