1
0

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

More than 3 years have passed since last update.

IBMCloud NetScaler SSL証明書更新ダウンタイム

Last updated at Posted at 2021-10-19

目的

IBM Citrix Netscaler VPXを利用した際のSSL証明書更新時に通信断がどの程度発生するか確認してみた。

環境

  • ローカル端末:macOS BigSur 11.6 1台
  • プラットフォーム:IBMCloud
    • ロードバランサ:Citrix NetScalerVPX NS11.1: Build 64.14.nc 1サービス
    • DNSサービス:IBMCloud DNS 1サービス
    • 接続先サーバ:CentOS 7.7.1908(Virtual Server for Classic) 2台

概要構成図

kou検証_日々更新.png

[疎通確認先]
①代表サービス(https)
→WebSV01
→WebSV11

疎通確認方法

スクリプトで延々curlさせた状態で、プライマリをリブート

# !/bin/sh

URL="https://vpx.xcloudyx.com"; #接続先
HEAD="Content-Type:text/xml"; #リクエストヘッダー

for i in {0..10000}
do
    SETDT=`date "+%Y%m%d%H%M%S"`
    curl -w "gettime:%{time_total}\n " -H $HEAD $URL;
    sleep 0;
done

結果

Webサービスへのダウンタイムはなし
また、vpx管理IPなどへのダウンも特に発生しなかった。

gettime:0.078819 sv01
gettime:0.081968 sv11
gettime:0.084828 sv01
gettime:0.078648 sv11
gettime:0.096067 sv01
gettime:0.083189 sv11
gettime:0.074361 sv01
gettime:0.070263 sv11
gettime:0.077303 sv01
gettime:0.067488 sv11
gettime:0.076169 sv01
gettime:0.068474 sv11
gettime:0.074911 sv01
gettime:0.074682 sv11
gettime:0.073917 sv01
gettime:0.071079 sv11
1
0
0

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
1
0

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?