[過去ログ] サーバダウン(鯖落ち)超情報 Part136 [無断転載禁止]©2ch.net (1001レス)
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(1): 2017/11/16(木)03:05 ID:SbFYouqA(1/2) AAS
High Sierra Sky ★

I was wondering why this problem continued to occur frequently.
So I focused on each IPs associated with domains (2ch.net 5ch.net 2ch.s c).
I realized each domains had some common IP band.
The detail of dmz & host are shown below.

画像リンク[png]:gfx.robtex.com c
2ch.sc
104.20.136.2 104.20.128.0/20 外部リンク[2]:bgp.he.net
104.20.137.2 104.20.128.0/20 
dawn.ns.cloudflare.com 173.245.58.106 173.245.58.0/24 ←外部リンク[106]:bgp.he.net
norm.ns.cloudflare.com 173.245.59.134 173.245.59.0/24 ←外部リンク[134]:bgp.he.net

画像リンク[png]:gfx.robtex.com
画像リンク[png]:gfx.robtex.com
5ch.net(2ch.net)
104.20.26.96 104.20.27.96 104.20.48.0/20 外部リンク[96]:bgp.he.net
(104.20.49.205) (104.20.50.205) (104.20.16.0/20) (外部リンク[205]:bgp.he.net
isla.ns.cloudflare.com 173.245.58.119 173.245.58.0/24 ←外部リンク[119]:bgp.he.net
ben.ns.cloudflare.com 173.245.59.103 173.245.59.0/24 ←外部リンク[103]:bgp.he.net

What I particularly focused on is the common IP band of the name server of 3 domains.
As you see, the remote host names on name servers are diffirent per each.
But the common IP band used is 173.245.58.0/24 and 173.245.59.0/24 of cloudflare.com.
I have a doubt Nishimura's 2ch.s c setting might be intentional set for making this problem.
Because 2ch.s c has categories which are still being reprinted from 5ch.net.
I couldn't still investigated how the reprinted categories were carried out in a system of 2ch.s c.
But I don't think this reprinted system of 2ch.s c is irrelevant as problem now.

I hope my viewpoints lead to hints on problem solving.
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