Re: Any GNU/Linux Gurus. Need Help

On Thu, 16 Jul 2026 21:53:25 +0000, Leroy H wrote:

>> 
>> host auth.proofing.statefarm.com
>>

Using tcpdump, after executing the above command I get the following
output:

16:14:36.246775 IP 192.168.0.2.43044 > 185.151.12.158.nntp: Flags [P.], seq 14:27, ack 38, win 84, length 13
16:14:36.276223 IP 185.151.12.158.nntp > 192.168.0.2.43044: Flags [P.], seq 38:75, ack 27, win 32, length 37
16:14:36.276236 IP 192.168.0.2.43044 > 185.151.12.158.nntp: Flags [.], ack 75, win 84, length 0
16:14:36.665930 IP 192.168.0.2.44054 > k.gtld-servers.net.domain: 4021+ [1au] A? auth.proofing.statefarm.com. (56)
16:14:36.665936 IP 192.168.0.2.6744 > g.gtld-servers.net.domain: 51172+ [1au] A? auth.proofing.statefarm.com. (56)
16:14:36.665939 IP 192.168.0.2.32558 > m.gtld-servers.net.domain: 19896+ [1au] A? auth.proofing.statefarm.com. (56)
16:14:36.684007 IP g.gtld-servers.net.domain > 192.168.0.2.6744: 51172- 0/2/3 (126)
16:14:36.684168 IP 192.168.0.2.40802 > ns29.statefarm.com.domain: 47344+ [1au] A? auth.proofing.statefarm.com. (56)
16:14:36.684174 IP 192.168.0.2.14053 > ns31.statefarm.com.domain: 49280+ [1au] A? auth.proofing.statefarm.com. (56)
16:14:36.693843 IP m.gtld-servers.net.domain > 192.168.0.2.32558: 19896- 0/2/3 (126)
16:14:36.693863 IP 192.168.0.2 > m.gtld-servers.net: ICMP 192.168.0.2 udp port 32558 unreachable, length 162
16:14:36.693941 IP k.gtld-servers.net.domain > 192.168.0.2.44054: 4021- 0/2/3 (126)
16:14:36.693948 IP 192.168.0.2 > k.gtld-servers.net: ICMP 192.168.0.2 udp port 44054 unreachable, length 162
16:14:36.726650 IP ns31.statefarm.com.domain > 192.168.0.2.14053: 49280 NXDomain*- 1/1/1 CNAME auth.proofing.ciam.c1.statefarm. (150)
16:14:36.727627 IP ns29.statefarm.com.domain > 192.168.0.2.40802: 47344 NXDomain*- 1/1/1 CNAME auth.proofing.ciam.c1.statefarm. (150)
16:14:36.727638 IP 192.168.0.2 > ns29.statefarm.com: ICMP 192.168.0.2 udp port 40802 unreachable, length 186
16:14:36.742853 IP 192.168.0.2.14016 > a.in-addr-servers.arpa.domain: 60595+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.742858 IP 192.168.0.2.24600 > b.in-addr-servers.arpa.domain: 57973+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.742863 IP 192.168.0.2.23261 > c.in-addr-servers.arpa.domain: 59832+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.771093 IP a.in-addr-servers.arpa.domain > 192.168.0.2.14016: 60595- 0/6/1 (194)
16:14:36.771351 IP 192.168.0.2.42772 > r.arin.net.domain: 64579+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.771356 IP 192.168.0.2.32885 > y.arin.net.domain: 15904+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.771359 IP 192.168.0.2.52841 > u.arin.net.domain: 56067+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.776027 IP b.in-addr-servers.arpa.domain > 192.168.0.2.24600: 57973- 0/6/1 (175)
16:14:36.776044 IP 192.168.0.2 > b.in-addr-servers.arpa: ICMP 192.168.0.2 udp port 24600 unreachable, length 211
16:14:36.790197 IP y.arin.net.domain > 192.168.0.2.32885: 15904- 0/2/1 (106)
16:14:36.790354 IP 192.168.0.2.27044 > ns29.statefarm.com.domain: 46867+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.790359 IP 192.168.0.2.28719 > ns31.statefarm.com.domain: 33418+ [1au] PTR? 53.128.80.206.in-addr.arpa. (55)
16:14:36.791385 IP u.arin.net.domain > 192.168.0.2.52841: 56067- 0/2/1 (106)
16:14:36.791402 IP 192.168.0.2 > u.arin.net: ICMP 192.168.0.2 udp port 52841 unreachable, length 142
16:14:36.801217 IP r.arin.net.domain > 192.168.0.2.42772: 64579- 0/2/1 (106)
16:14:36.801232 IP 192.168.0.2 > r.arin.net: ICMP 192.168.0.2 udp port 42772 unreachable, length 142
16:14:36.831599 IP ns29.statefarm.com.domain > 192.168.0.2.27044: 46867*- 1/2/1 PTR ns29.statefarm.com. (120)
16:14:36.831908 IP 192.168.0.2.46132 > b.in-addr-servers.arpa.domain: 8679+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.831915 IP 192.168.0.2.41237 > c.in-addr-servers.arpa.domain: 3055+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.831918 IP 192.168.0.2.43857 > d.in-addr-servers.arpa.domain: 26916+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.834464 IP ns31.statefarm.com.domain > 192.168.0.2.28719: 33418*- 1/2/1 PTR ns29.statefarm.com. (120)
16:14:36.834481 IP 192.168.0.2 > ns31.statefarm.com: ICMP 192.168.0.2 udp port 28719 unreachable, length 156
16:14:36.862281 IP b.in-addr-servers.arpa.domain > 192.168.0.2.46132: 8679- 0/6/1 (175)
16:14:36.862538 IP 192.168.0.2.40970 > r.arin.net.domain: 23958+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.862543 IP 192.168.0.2.56934 > u.arin.net.domain: 52945+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.862546 IP 192.168.0.2.1425 > y.arin.net.domain: 35005+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.879654 IP u.arin.net.domain > 192.168.0.2.56934: 52945- 0/2/1 (106)
16:14:36.879811 IP 192.168.0.2.59606 > ns31.statefarm.com.domain: 48348+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.879815 IP 192.168.0.2.6073 > ns29.statefarm.com.domain: 60233+ [1au] PTR? 53.132.80.206.in-addr.arpa. (55)
16:14:36.880862 IP y.arin.net.domain > 192.168.0.2.1425: 35005- 0/2/1 (106)
16:14:36.880878 IP 192.168.0.2 > y.arin.net: ICMP 192.168.0.2 udp port 1425 unreachable, length 142
16:14:36.890689 IP r.arin.net.domain > 192.168.0.2.40970: 23958- 0/2/1 (106)
16:14:36.890706 IP 192.168.0.2 > r.arin.net: ICMP 192.168.0.2 udp port 40970 unreachable, length 142
16:14:36.907018 IP d.in-addr-servers.arpa.domain > 192.168.0.2.43857: 26916- 0/6/1 (194)
16:14:36.907035 IP 192.168.0.2 > d.in-addr-servers.arpa: ICMP 192.168.0.2 udp port 43857 unreachable, length 230
16:14:36.919299 IP ns29.statefarm.com.domain > 192.168.0.2.6073: 60233*- 1/2/1 PTR ns31.statefarm.com. (120)
16:14:36.922015 IP ns31.statefarm.com.domain > 192.168.0.2.59606: 48348*- 1/2/1 PTR ns31.statefarm.com. (120)
16:14:36.922025 IP 192.168.0.2 > ns31.statefarm.com: ICMP 192.168.0.2 udp port 59606 unreachable, length 156
16:14:37.012194 IP c.in-addr-servers.arpa.domain > 192.168.0.2.23261: 59832- 0/6/1 (175)
16:14:37.012211 IP 192.168.0.2 > c.in-addr-servers.arpa: ICMP 192.168.0.2 udp port 23261 unreachable, length 211
16:14:37.089372 IP c.in-addr-servers.arpa.domain > 192.168.0.2.41237: 3055- 0/6/1 (175)
16:14:37.089389 IP 192.168.0.2 > c.in-addr-servers.arpa: ICMP 192.168.0.2 udp port 41237 unreachable, length 211
16:14:51.410202 ARP, Request who-has 192.168.0.2 (Broadcast) tell router, length 46
16:14:51.410209 ARP, Reply 192.168.0.2 is-at fc:aa:14:30:5c:23 (oui Unknown), length 28
16:14:51.410401 IP 185.151.12.158.nntp > 192.168.0.2.43044: Flags [.], ack 27, win 32, length 0
16:14:51.410408 IP 192.168.0.2.43044 > 185.151.12.158.nntp: Flags [.], ack 75, win 84, length 0

The same message occurs many times:

IP 192.168.0.2 > c.in-addr-servers.arpa: ICMP 192.168.0.2 udp port xxxxx unreachable

192.168.0.2 is the address of my machine on the LAN.

Unfortunately, I am not at all versed in network programming but the response
"192.168.0.2 > c.in-addr-servers.arpa" seems to indicate that my machine is telling
the nameserver that the (local?) UDP port is unreachable.

Any comments?