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\n \u63a7\u5236\u662f\u5426\u4f7f\u7528\u5ba2\u6237\u7aef TCP keepalive\u3002\u9ed8\u8ba4\u503c\u4e3a 1\uff0c\u8868\u793a\u5f00\u542f\uff1b\u5982\u679c\u4e0d\u9700\u8981 keepalive\uff0c\u53ef\u4ee5\u5c06\u5176\u8bbe\u4e3a 0\uff0c\u8868\u793a\u5173\u95ed\u3002\u5bf9\u4e8e\u901a\u8fc7 Unix \u57df\u5957\u63a5\u5b57\u5efa\u7acb\u7684\u8fde\u63a5\uff0c\u6b64\u53c2\u6570\u4f1a\u88ab\u5ffd\u7565\u3002\n
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