<div dir="ltr"><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif">Thank you for your help.</div><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif"><br></div><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif">I have solved the problem. Like you said, I used the IPv6.</div><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif"><br></div><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif">I still don't want to add IPv6 to the whitelist. Because, in our <span style="color:rgb(84,84,84);font-family:arial,sans-serif;font-size:small;text-align:left;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">organization, we just beginning to survey IPv6 network system.<br>If the <span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">IPv6 network system is ready. I will</span></span> add our IPv6 address to the whitelist as soon as I can.</div><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif"><br></div><div class="gmail_default" style="font-family:"microsoft jhenghei",sans-serif">At last, I am very thank you for solving my question.</div></div><br><div class="gmail_quote"><div dir="ltr">Anssi Johansson <<a href="mailto:avij@centosproject.org">avij@centosproject.org</a>> 於 2018年7月20日 週五 下午11:05寫道：<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">韋佳均 kirjoitti 20.7.2018 klo 17.56:<br>
> To whom it may concern<br>
> <br>
> I am a new system administrator <a href="http://fromlinux.cs.nctu.edu.tw" rel="noreferrer" target="_blank">fromlinux.cs.nctu.edu.tw</a> <br>
> <<a href="http://linux.cs.nctu.edu.tw/" rel="noreferrer" target="_blank">http://linux.cs.nctu.edu.tw/</a>>(<a href="http://centos.cs.nctu.edu.tw" rel="noreferrer" target="_blank">centos.cs.nctu.edu.tw</a> <br>
> <<a href="http://centos.cs.nctu.edu.tw/" rel="noreferrer" target="_blank">http://centos.cs.nctu.edu.tw/</a>>)<br>
> <br>
> And I want to sync the centos package from <a href="http://msync.centos.org" rel="noreferrer" target="_blank">msync.centos.org</a> <br>
> <<a href="http://msync.centos.org/" rel="noreferrer" target="_blank">http://msync.centos.org/</a>><br>
> but I got the error message<br>
> <br>
> @ERROR: Unknown module 'CentOS'<br>
> rsync error: error starting client-server protocol (code 5) at<br>
> main.c(1657) [Receiver=3.1.3]<br>
> <br>
> <br>
> I search from google, And I find the message<br>
> <a href="http://grokbase.com/t/centos/centos-mirror/149ka8ehsy/cant-rsync-from-msync-centos-org-centos" rel="noreferrer" target="_blank">http://grokbase.com/t/centos/centos-mirror/149ka8ehsy/cant-rsync-from-msync-centos-org-centos</a><br>
> <br>
> So, I think I must to check our machine is in white list.<br>
> My machine IP is "140.113.168.126"<br>
> <br>
> If IP is not current, may I update the information.<br>
> Sync schedule: Every 6 hrs<br>
> Bandwidth: 1Gbps<br>
> Location: Asia Taiwan<br>
> Sponsor: Computer Science Computer Center, National Chiao Tung University<br>
> Sponsor URL: <a href="https://www.cs.nctu.edu.tw/cchonor/" rel="noreferrer" target="_blank">https://www.cs.nctu.edu.tw/cchonor/</a><br>
> IPv4 address to authorize: 140.113.168.126<br>
> IPv6 address to authorize: -<br>
> Email contact: <a href="mailto:weicc@cs.nctu.edu.tw" target="_blank">weicc@cs.nctu.edu.tw</a> <mailto:<a href="mailto:weicc@cs.nctu.edu.tw" target="_blank">weicc@cs.nctu.edu.tw</a>><br>
> Mirroring AltArch : not yet<br>
<br>
We seem to have 140.113.168.126 enabled already. Perhaps your server has <br>
an IPv6 address? Does rsync work better if you use the -4 option to <br>
force the use of IPv4?<br>
<br>
If this is the case, I'd prefer to add your IPv6 address to the <br>
whitelist as well so you would not need to sync over a legacy protocol.<br>
<br>
This would be a good way to determine your IPv6 address:<br>
<br>
$ rsync -6 rsync://<a href="http://no-access.miuku.net/keep-out" rel="noreferrer" target="_blank">no-access.miuku.net/keep-out</a><br>
@ERROR: access denied to keep-out from yourhostname (2001:db0::123)<br>
<br>
(the error message shows your IPv6 address, if you have one)<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Sincerely,</div><div>Kevin Wei (weicc) 韋佳均 (Wei Chia-Chun)</div><div>Computer Science Computer Center, National Chiao Tung University</div><div>1001 University Road, Hsinchu, Taiwan 300, ROC</div><div>+886-3-5712121 #54707</div></div></div>