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ネットワークの蹴り出し?が遅い場合

Last updated at Posted at 2015-03-16

いま、Ubuntu 14.04TLSで、サーバを構築しています。いままで、WebProxy として、squid3 を利用していたのですが、StartSSLの証明書+nginxで、正しく接続できないため、polipo に乗り換えました。ただ、なんかネットワーク接続時の蹴り出し?が遅い...(蹴り出しって言わないかな?初速?接続時?バッファリング時?)

こうすると、良いらしい!

/etc/hosts のip6が入っている行をすべてコメントアウトする。(後ろ向きー:-P)


127.0.0.1 localhost
***.***.***.*** hoge
# The following lines are desirable for IPv6 capable hosts
#::1 localhost ip6-localhost ip6-loopback
#ff02::1 ip6-allnodes
#ff02::2 ip6-allrouters

次に、/etc/sysctl.conf に以下の行を追加する。


net.core.rmem_default = 524288
net.core.rmem_max = 524288
net.core.wmem_default = 524288
net.core.wmem_max = 524288
net.ipv4.tcp_wmem = 4096 87380 524288
net.ipv4.tcp_rmem = 4096 87380 524288
net.ipv4.tcp_mem = 524288 524288 524288
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_ecn = 0
net.ipv4.route.flush = 1

最後に、sudo sysctl -p する。以上!

実際に設定してみると、かなり接続は速くなった感じ。気のせいかも知れませんがw

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