Quick-to-type diagnostics
Inspired by "The world's shortest domain names", try the following to minimize any typing on a random *nix machine:
% ping tm.
PING tm (193.223.78.213) 56(84) bytes of data.
64 bytes from serv213.icb.co.uk (193.223.78.213): icmp_seq=1 ttl=50 time=98.0 ms
or even:
% ping tm
PING tm (193.223.78.213) 56(84) bytes of data.
64 bytes from serv213.icb.co.uk (193.223.78.213): icmp_req=1 ttl=49 time=30.5 ms
and: (last rows of output left out)
% dig
; <<>> DiG 9.7.0-P1 <<>>
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61848
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14
;; QUESTION SECTION:
;. IN NS
;; ANSWER SECTION:
. 137270 IN NS f.root-servers.net.
. 137270 IN NS k.root-servers.net.
. 137270 IN NS e.root-servers.net.
. 137270 IN NS c.root-servers.net.
. 137270 IN NS m.root-servers.net.
. 137270 IN NS g.root-servers.net.
. 137270 IN NS d.root-servers.net.
. 137270 IN NS i.root-servers.net.
. 137270 IN NS h.root-servers.net.
. 137270 IN NS l.root-servers.net.
. 137270 IN NS b.root-servers.net.
. 137270 IN NS a.root-servers.net.
. 137270 IN NS j.root-servers.net.
;; ADDITIONAL SECTION:
l.root-servers.net. 496605 IN A 199.7.83.42
l.root-servers.net. 245985 IN AAAA 2001:500:3::42
k.root-servers.net. 496848 IN A 193.0.14.129
k.root-servers.net. 224660 IN AAAA 2001:7fd::1
f.root-servers.net. 496846 IN A 192.5.5.241
f.root-servers.net. 297395 IN AAAA 2001:500:2f::f
e.root-servers.net. 497093 IN A 192.203.230.10
b.root-servers.net. 497218 IN A 192.228.79.201
a.root-servers.net. 52822 IN A 198.41.0.4
a.root-servers.net. 117889 IN AAAA 2001:503:ba3e::2:30
d.root-servers.net. 496789 IN A 128.8.10.90
h.root-servers.net. 496829 IN A 128.63.2.53
h.root-servers.net. 555110 IN AAAA 2001:500:1::803f:235
j.root-servers.net. 52997 IN A 192.58.128.30
;; Query time: 71 msec
Maybe google.com is a good default choice for random tracerouting (hoping to minimize any filtering of such traffic). On that note, don't forget they have public DNS available if you need to have a reference point.
