کد:
[root@IBSng ~]# ping ftp.postgresql.org
PING ftp.mirrors.postgresql.org (147.75.85.69) 56(84) bytes of data.
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=1 ttl=55 time=11.3                                                                                                         ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=2 ttl=55 time=11.2                                                                                                         ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=3 ttl=55 time=11.2                                                                                                         ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=4 ttl=55 time=11.2                                                                                                         ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=5 ttl=55 time=11.4 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=6 ttl=55 time=11.1 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=7 ttl=55 time=11.2 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=8 ttl=55 time=11.2 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=9 ttl=55 time=11.3 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=10 ttl=55 time=11.3 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=11 ttl=55 time=11.5 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=12 ttl=55 time=11.2 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=13 ttl=55 time=11.2 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=14 ttl=55 time=11.2 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=15 ttl=55 time=11.2 ms
64 bytes from fendaus.postgresql.org (147.75.85.69): icmp_seq=16 ttl=55 time=11.3 ms
کد:
[root@IBSng ~]# ping as250.net
PING as250.net (194.150.168.160) 56(84) bytes of data.
64 bytes from as250.net (194.150.168.160): icmp_seq=1 ttl=56 time=15.7 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=2 ttl=56 time=15.8 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=3 ttl=56 time=15.7 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=4 ttl=56 time=15.8 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=5 ttl=56 time=15.9 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=6 ttl=56 time=15.8 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=7 ttl=56 time=15.7 ms
64 bytes from as250.net (194.150.168.160): icmp_seq=8 ttl=56 time=15.8 ms
کد:
[root@IBSng ~]# wget https://download.postgresql.org/pub/...est.noarch.rpm
--2020-08-30 15:34:32--  https://download.postgresql.org/pub/...est.noarch.rpm
Resolving download.postgresql.org... 87.238.57.227, 147.75.85.69, 72.32.157.246, ...
Connecting to download.postgresql.org|87.238.57.227|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2020-08-30 15:34:33 ERROR 404: Not Found.