Re: [gentoo-user] Browsers cannot access WWW while ping and host utilities work as expected.

[Kurian Thayil]

Can you do a ping and see if the resolv.conf DNS ips are reachable?

do a
dig @8.8.8.8 www.google.com ## which will do a name resolution with Google
DNS servers.

also pls post make sure you have correct routing table (route -n)

Regards,
Kurian.


On Sun, Aug 4, 2013 at 7:57 PM, Mick <michaelkintzios@×××××.com> wrote:

> On Sunday 04 Aug 2013 19:56:08 gevisz wrote:
> > Trying to migrate from Ubuntu 10.04 LTS, I have installed Gentoo,
> > profile AMD64 13.0 desktop gnome.
> >
> > Everything so far works as expected except for Internet browsers and
> > GNOME applets that should connect to the Internet.
> >
> > More exactly, Internet browsers (I have tried Firefox and Links) can
> > connect to the WWW if I type the IP address as,
> > for example, 173.194.71.104 but cannot if I type www.google.com
> >
> > And this is strange because the host utility works as expected
> > (converting www.google.com into 173.194.71.104) just adding the
> > following "Warning: query response not set."
>
> Hmm .. wonder if this is something to do with your dns repeater (your lan
> router) sending malformed packets in response?
>
>
> > The ifconfig utility shows that instead of eth0 I have somewhat
> > strange enp2s15 but I have played with this and found no difference
> > after forcing udev to name it eth0.
>
> This is the new kernel naming scheme of NICs.  Which-ever nomenclature you
> decide to use, check that that's the only one having a symlink in
> /etc/init.d/
> to net.lo
>
> There's been a few threads in this list a couple of months ago or so.  You
> may
> want to refer to them.
>
>
> > Installing Gentoo, I closely followed the instructions from Gentoo
> > Linux AMD64 Handbook
> > (http://www.gentoo.org/doc/en/handbook/handbook-amd64.xml?full=1).
> >
> > The contents of my /etc/conf.d/net file is like this:
> > hostname="myhostname"
> > dns_domain_lo="mynetwork"
> > config_enp2s15="192.168.0.9 netmask 255.255.255.0 broadcast
> 192.168.0.255"
> > routes_enp2s15="default via <my_rooter_local_network_IP>"
> > dns_servers_enp2s15="<my_rooter_local_network_IP>
> > <my_provider_DNS_server_IP> <another_DNS_server_IP>"
>
> If you have concluded on using eth0, then change the above entries
> accordingly
> and also try leaving only your router's local_network_IP in there.  The
> router
> should provide you with your ISPs repeaters addresses anyway.
>
>
> > The contents of my /etc/resolv.conf is like this:
> > nameserver <my_rooter_local_network_IP>
> > nameserver <my_provider_DNS_server_IP>
> > nameserver <another_DNS_server_IP>
> >
> > The relevant part of /var/log/rc.log is like this:
> > * Bringing up interface enp2s15
> > * Skipping module adsl due to missing program: /usr/sbin/adsl-start
> > /usr/sbin/pppoe-start
> > * Skipping module br2684ctl due to missing program: br2684ctl
> > * Skipping module tuntap due to missing program: ip openvpn tunctl
> > * Skipping module bridge due to missing program: brctl
> > * Skipping module clip due to missing program: /usr/sbin/atmsigd
> > * Skipping module ethtool due to missing program: ethtool
> > * Skipping module macvlan due to missing program: ip
> > * Skipping module netplugd due to missing program: /sbin/netplugd
> > * Skipping module ifplugd due to missing program: /usr/sbin/ifplugd
> > * Skipping module ipppd due to missing program: /usr/sbin/ipppd
> > * Skipping module iwconfig due to missing program: /sbin/iwconfig
> > * Skipping module iproute2 due to missing program: ip
> > * Skipping module firewalld due to missing program: firewall-cmd
> > * Skipping module pppd due to missing program: /usr/sbin/pppd
> > * Skipping module vlan due to missing program: ip
> > * Skipping module dhclient due to missing program: /sbin/dhclient
> > * Skipping module pump due to missing program: /sbin/pump
> > * Skipping module ip6rd due to missing program: ip
> > * Skipping module ip6to4 due to missing program: ip
> > * Loaded modules: apipa arping bonding ccwgroup macchanger macnet
>
> You seem to have built a tonne of modules which you probably do not need.
>
> > wpa_supplicant ssidnet ifconfig system dhcpcd
> > * Configuring enp2s15 for MAC address <my_ethernet_card_mac_address> ...
> > [ ok ]
> > * 192.168.0.9 ...
> > [ ok ]
> > * Adding routes
> > * default via <my_rooter_local_network_IP> ...
> >
> > Remark: My router works ok for the Ubuntu installation on the same
> > computer.
> >
> >  Networking options of my kernel is as follows:
> >
> > CONFIG_PACKET=y
> > CONFIG_PACKET_DIAG=y
> > CONFIG_UNIX=y
> > CONFIG_UNIX_DIAG=y
> > CONFIG_XFRM=y
> > CONFIG_XFRM_ALGO=y
> > CONFIG_XFRM_USER=y
> > CONFIG_INET=y
> > CONFIG_INET_TUNNEL=y
> > CONFIG_INET_LRO=y
> > CONFIG_INET_DIAG=y
> > CONFIG_INET_TCP_DIAG=y
> > CONFIG_INET_UDP_DIAG=y
> > CONFIG_TCP_CONG_ADVANCED=y
> > CONFIG_TCP_CONG_CUBIC=y
> > CONFIG_DEFAULT_CUBIC=y
> > CONFIG_DEFAULT_TCP_CONG="cubic"
> > CONFIG_TCP_MD5SIG=y
> > CONFIG_IPV6=y
> > CONFIG_INET6_AH=y
> > CONFIG_INET6_ESP=y
> > CONFIG_INET6_XFRM_MODE_TRANSPORT=y
> > CONFIG_INET6_XFRM_MODE_TUNNEL=y
> > CONFIG_INET6_XFRM_MODE_BEET=y
> > CONFIG_IPV6_SIT=y
> > CONFIG_IPV6_NDISC_NODETYPE=y
> > CONFIG_NETWORK_SECMARK=y
> > CONFIG_HAVE_NET_DSA=y
> > CONFIG_DNS_RESOLVER=y
> > CONFIG_RPS=y
> > CONFIG_RFS_ACCEL=y
> > CONFIG_XPS=y
> > CONFIG_BQL=y
> >
> > where all options that are "not set" has been deleted for brevity.
> >
> > I have also tried to use dhcpd instead of static IP but it did not help.
> >
> > Currently, I have completely exhausted all my creativity trying to
> > figure out how to make my WWW browsers to work properly. Please, help!
>
> Can you please show us:
>
> ip route show
>
> ip addr show
>
> ip link show
>
> --
> Regards,
> Mick
>