ping and host
in [Linux Networking]
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From: Bruno Costacurta on 4 Sep 2005 16:28 I have the hereafter results regarding ping and host. Fine for 'ping' but what does 'host' return means ? [root(a)pc34ghz ~]# ping www.google.com PING www.l.google.com (216.239.59.99) 56(84) bytes of data. 64 bytes from 216.239.59.99: icmp_seq=0 ttl=237 time=35.6 ms 64 bytes from 216.239.59.99: icmp_seq=1 ttl=237 time=35.6 ms [root(a)pc34ghz ~]# host www.google.com www.google.com is an alias for www.l.google.com. www.l.google.com has address 216.239.59.147 www.l.google.com has address 216.239.59.99 www.l.google.com has address 216.239.59.104 www.l.google.com has address 216.239.59.103 ;; Warning: Message parser reports malformed message packet. ;; connection timed out; no servers could be reached Cheers, Bruno
From: Bit Twister on 4 Sep 2005 17:31 On Sun, 04 Sep 2005 22:28:05 +0200, Bruno Costacurta wrote: > I have the hereafter results regarding ping and host. > Fine for 'ping' but what does 'host' return means ? > > [root(a)pc34ghz ~]# ping www.google.com > PING www.l.google.com (216.239.59.99) 56(84) bytes of data. > 64 bytes from 216.239.59.99: icmp_seq=0 ttl=237 time=35.6 ms > 64 bytes from 216.239.59.99: icmp_seq=1 ttl=237 time=35.6 ms > > [root(a)pc34ghz ~]# host www.google.com > www.google.com is an alias for www.l.google.com. > www.l.google.com has address 216.239.59.147 > www.l.google.com has address 216.239.59.99 > www.l.google.com has address 216.239.59.104 > www.l.google.com has address 216.239.59.103 > ;; Warning: Message parser reports malformed message packet. > ;; connection timed out; no servers could be reached guessing an overloaded DNS server or realy bad connection somewhere. host www.google.com www.google.com is an alias for www.l.google.com. www.l.google.com has address 64.233.161.147 www.l.google.com has address 64.233.161.99 www.l.google.com has address 64.233.161.104 www.google.com is an alias for www.l.google.com. www.google.com is an alias for www.l.google.com. check each dns server cat /etc/resolv.conf host www.google.com dns_ip_here_to_test or dig www.google.com dns_ip_here_to_test
From: Bruno Costacurta on 5 Sep 2005 02:22 Bit Twister wrote: > On Sun, 04 Sep 2005 22:28:05 +0200, Bruno Costacurta wrote: >> I have the hereafter results regarding ping and host. >> Fine for 'ping' but what does 'host' return means ? >> >> [root(a)pc34ghz ~]# ping www.google.com >> PING www.l.google.com (216.239.59.99) 56(84) bytes of data. >> 64 bytes from 216.239.59.99: icmp_seq=0 ttl=237 time=35.6 ms >> 64 bytes from 216.239.59.99: icmp_seq=1 ttl=237 time=35.6 ms >> >> [root(a)pc34ghz ~]# host www.google.com >> www.google.com is an alias for www.l.google.com. >> www.l.google.com has address 216.239.59.147 >> www.l.google.com has address 216.239.59.99 >> www.l.google.com has address 216.239.59.104 >> www.l.google.com has address 216.239.59.103 >> ;; Warning: Message parser reports malformed message packet. >> ;; connection timed out; no servers could be reached > > guessing an overloaded DNS server or realy bad connection somewhere. > > host www.google.com > www.google.com is an alias for www.l.google.com. > www.l.google.com has address 64.233.161.147 > www.l.google.com has address 64.233.161.99 > www.l.google.com has address 64.233.161.104 > www.google.com is an alias for www.l.google.com. > www.google.com is an alias for www.l.google.com. > > check each dns server > cat /etc/resolv.conf > > host www.google.com dns_ip_here_to_test > or > dig www.google.com dns_ip_here_to_test But the DNS looks fine. In fact they're working on my previous config wich is an ADSL modem. Now I just installed a Wireless modem router (using same DNS) but received the herebefore problems. I cannot see why same DNS produce different results.
From: Ruediger Grimm on 5 Sep 2005 15:43 > I have the hereafter results regarding ping and host. > Fine for 'ping' but what does 'host' return means ? > > [root(a)pc34ghz ~]# ping www.google.com > PING www.l.google.com (216.239.59.99) 56(84) bytes of data. > 64 bytes from 216.239.59.99: icmp_seq=0 ttl=237 time=35.6 ms > 64 bytes from 216.239.59.99: icmp_seq=1 ttl=237 time=35.6 ms > > [root(a)pc34ghz ~]# host www.google.com > www.google.com is an alias for www.l.google.com. > www.l.google.com has address 216.239.59.147 > www.l.google.com has address 216.239.59.99 > www.l.google.com has address 216.239.59.104 > www.l.google.com has address 216.239.59.103 > ;; Warning: Message parser reports malformed message packet. > ;; connection timed out; no servers could be reached > > Cheers, > Bruno Hi, perhaps it is a "DNS-loadbalancing" ? greetings ruediger
From: Bruno Costacurta on 5 Sep 2005 16:33
Ruediger Grimm wrote: >> I have the hereafter results regarding ping and host. >> Fine for 'ping' but what does 'host' return means ? >> >> [root(a)pc34ghz ~]# ping www.google.com >> PING www.l.google.com (216.239.59.99) 56(84) bytes of data. >> 64 bytes from 216.239.59.99: icmp_seq=0 ttl=237 time=35.6 ms >> 64 bytes from 216.239.59.99: icmp_seq=1 ttl=237 time=35.6 ms >> >> [root(a)pc34ghz ~]# host www.google.com >> www.google.com is an alias for www.l.google.com. >> www.l.google.com has address 216.239.59.147 >> www.l.google.com has address 216.239.59.99 >> www.l.google.com has address 216.239.59.104 >> www.l.google.com has address 216.239.59.103 >> ;; Warning: Message parser reports malformed message packet. >> ;; connection timed out; no servers could be reached >> >> Cheers, >> Bruno > > Hi, > > perhaps it is a "DNS-loadbalancing" ? > > greetings > ruediger > > Why do you mean by a "DNS-loadbalancing" ? However the problem I mentioned here appears with a Wireless ADSL Router. I never had these problems with my previous modem (and same DSN settings). |