On Sun, 2021-01-03 at 11:54 +0800, Ed Greshko wrote:
On 03/01/2021 06:30, Michael H. Warfield wrote:
> [mhw@rpi-plate ~]$ ping
mirrors.fedoraproject.org
> ping:
mirrors.fedoraproject.org: Name or service not known
> [mhw@rpi-plate ~]$ ping6
mirrors.fedoraproject.org
> ping6:
mirrors.fedoraproject.org: Name or service not known
Just a note here.
If you do have IPv6 service, those addresses will be preferred over
IPv4. See man gai.conf.
One would have to do "ping -4" to differentiate.
Note, I did try "ping6" to differentiate. Even though there was an
IPv6 address, it still failed with "unknown host or service".
[egreshko@meimei ~]$ ping -c 1
mirrors.fedoraproject.org
PING
mirrors.fedoraproject.org(proxy06.fedoraproject.org
(2605:bc80:3010:600:dead:beef:cafe:fed9)) 56 data bytes
64 bytes from
proxy06.fedoraproject.org
(2605:bc80:3010:600:dead:beef:cafe:fed9): icmp_seq=1 ttl=53 time=148
ms
[egreshko@meimei ~]$ ping -4 -c 1
mirrors.fedoraproject.org
PING (8.43.85.67) 56(84) bytes of data.
64 bytes from
proxy14.fedoraproject.org (8.43.85.67): icmp_seq=1
ttl=42 time=199 ms
Right now, "Slide" and "Rpi-Plate" are communicating... Both work...
I'm fully IPv6 enabled. I'll have to wait a day or so till the
faceplant again.
[root@slide eero]# ping -4
mirrors.fedoraproject.org
PING (140.211.169.206) 56(84) bytes of data.
64 bytes from
proxy09.fedoraproject.org (140.211.169.206): icmp_seq=1 ttl=48 time=98.2 ms
64 bytes from
proxy09.fedoraproject.org (140.211.169.206): icmp_seq=2 ttl=48 time=97.6 ms
^C
--- ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 97.601/97.882/98.164/0.281 ms
[root@slide eero]# ping
mirrors.fedoraproject.org
PING mirrors.fedoraproject.org(2620:52:3:1:dead:beef:cafe:fed6
(2620:52:3:1:dead:beef:cafe:fed6)) 56 data bytes
64 bytes from 2620:52:3:1:dead:beef:cafe:fed6 (2620:52:3:1:dead:beef:cafe:fed6):
icmp_seq=1 ttl=53 time=63.9 ms
64 bytes from 2620:52:3:1:dead:beef:cafe:fed6 (2620:52:3:1:dead:beef:cafe:fed6):
icmp_seq=2 ttl=53 time=38.0 ms
^C
---
mirrors.fedoraproject.org ping statistics ---
3 packets transmitted, 2 received, 33.3333% packet loss, time 2003ms
rtt min/avg/max/mdev = 38.016/50.936/63.856/12.920 ms
---
The key to getting good answers is to ask good questions.
Regards,
Mike
--
Michael H. Warfield (AI4NB) | (o) +1 706 850-8773 | mhw(a)WittsEnd.com
/\/\|=mhw=|\/\/ | (c) +1 678 463-0932 |
http://www.wittsend.com/mhw/
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