Hi all! First, sorry my bad english..
I'm a old Debian user, and from some days, i note problem to access some sites
(big sites!) from Brasil..
And, today, i looking better this problem, and see is occourred on DNS name
resolution:
This tests do at fresh machine install using Debian 9:
*root@bkp2:~# host walmart.com.br*
walmart.com.br has address 177.124.108.137
walmart.com.br mail is handled by 10 mx2.walmart.com.br.
walmart.com.br mail is handled by 10 mx7.walmart.com.br.
walmart.com.br mail is handled by 1 mx1.walmart.com.br.
walmart.com.br mail is handled by 10 mx8.walmart.com.br.
*root@bkp2:~# host walmart.com.br 127.0.0.1*
Using domain server:
Name: 127.0.0.1
Address: 127.0.0.1#53
Aliases:
walmart.com.br has address 177.124.108.137
walmart.com.br mail is handled by 10 mx7.walmart.com.br.
walmart.com.br mail is handled by 1 mx1.walmart.com.br.
walmart.com.br mail is handled by 10 mx8.walmart.com.br.
walmart.com.br mail is handled by 10 mx2.walmart.com.br.
*root@bkp2:~# host walmart.com.br 8.8.8.8*
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases:
walmart.com.br has address 177.124.108.137
walmart.com.br mail is handled by 10 mx2.walmart.com.br.
walmart.com.br mail is handled by 10 mx7.walmart.com.br.
walmart.com.br mail is handled by 10 mx8.walmart.com.br.
walmart.com.br mail is handled by 1 mx1.walmart.com.br.
root@bkp2:~#
All ok, but now:
*root@bkp2:~# host www.walmart.com.br*
;; connection timed out; no servers could be reached
*root@bkp2:~# host www.walmart.com.br 127.0.0.1*
Using domain server:
Name: 127.0.0.1
Address: 127.0.0.1#53
Aliases:
Host www.walmart.com.br not found: 2(SERVFAIL)
*root@bkp2:~# host www.walmart.com.br 8.8.8.8*
;; connection timed out; no servers could be reached
root@bkp2:~#
And, i'm not need say who is Walmart :-)
This same problem occourred when access www.submarino.com.br and
www.americanas.com.br, two other big e-commerce here.
I try many things... chance my DNS server (PDNS-Recursor too Bind9), change DNS
server, etc...
And, here at office, i see some problem on four Debian 9 upgraded daily (like my
notebook)...
I'm stel trying find... but, if having help is better :-)
[] s
Tiago Oliveira de Jesus