toshi_hirasawa https://blog.hatena.ne.jp/toshi_hirasawa/ toshi_hirasawaの日記 https://toshi-hirasawa.hatenadiary.org/ linux わすれちゃうんで、メモ一番最初はDNS MXの確認 [hirasawa@ubunt1004-32-2 ~]$ nslookup > set type=mx > hirasawa.local Server: 192.168.1.28 Address: 192.168.1.28#53 hirasawa.local mail exchanger = 10 mail.hirasawa.local. > mail Server: 192.168.1.28 Address: 192.168.1.28#53 mail.hirasawa.local canonical name = cent5-64b-40.… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftoshi-hirasawa.hatenadiary.org%2Fentry%2F20111124%2F1322132477" title=" telnetでsmtp(postfix)　(telnet xxx.xxx.xxx.xxx 25)　まずは基本中の基本から　メモ - toshi_hirasawaの日記" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2011-11-24 20:01:17 rich https://toshi-hirasawa.hatenadiary.org/entry/20111124/1322132477 1.0 100%