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nxjoseph
n00b
Joined: 05 Mar 2023
Posts: 13
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 Posted: Sun Mar 05, 2023 1:38 pm Post subject: [SOLVED] I can't connect to network on custom kernel |
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Hello.
My computer is connected to router through an ethernet cable and my computer gets local IP, but I can't connect to network.
gives the error below
| Code: |
Temporary failure in name resolution
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I have disabled ipv6 in my kernel. I have enabled ehernet driver in kernel config.
Ethernet driver loaded as built in. My kernel does not use initrd.
Last edited by nxjoseph on Sun Mar 05, 2023 2:46 pm; edited 1 time in total |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54236
Location: 56N 3W
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| Posted: Sun Mar 05, 2023 1:50 pm Post subject: |
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nxjoseph,
| Code: | | Temporary failure in name resolution |
suggests lots of things.
Does show your interface with an IP address?
| Code: | roy@femail-clone ~ $ ifconfig -a
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.122.186 netmask 255.255.255.0 broadcast 192.168.122.255
... |
The inet line.
What about a route, you need a default route?
| Code: | $ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.122.1 0.0.0.0 UG 0 0 0 eth0 |
Lastly, you need /etc/resolv.conf populated with a working nameserver.
| Code: | | nameserver 192.168.122.1 |
If /etc/resolv.conf is empty, | Code: | $ ping google.com
PING google.com (172.217.16.206) 56(84) bytes of data.
64 bytes from fra16s08-in-f14.1e100.net (172.217.16.206): icmp_seq=1 ttl=118 time=5.22 ms |
will fail but
| Code: | | $ ping 172.217.16.206 |
will work as no nameserver is required.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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nxjoseph
n00b
Joined: 05 Mar 2023
Posts: 13
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| Posted: Sun Mar 05, 2023 1:57 pm Post subject: |
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Yes, interface gets a local IP.
| Code: |
$ ifconfig -a
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.2.2 netmask 255.255.255.0 broadcast 192.168.2.255
ether 3c:7c:3f:ba:42:04 txqueuelen 1000 (Ethernet)
RX packets 221 bytes 21851 (21.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 225 bytes 19950 (19.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.2.1 0.0.0.0 UG 1002 0 0 eth0
192.168.2.0 0.0.0.0 255.255.255.0 U 1002 0 0 eth0
$ cat /etc/resolv.conf
# Generated by dhcpcd from eth0.dhcp
# /etc/resolv.conf.head can replace this line
domain lan
nameserver 192.168.2.1
# /etc/resolv.conf.tail can replace this line
$ lspci | grep Eth
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54236
Location: 56N 3W
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| Posted: Sun Mar 05, 2023 2:07 pm Post subject: |
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nxjoseph,
That looks good.
Does | Code: | | ping 172.217.16.206 |
work?
What about
That will be your router, which is your net hop toward the internet.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Last edited by NeddySeagoon on Sun Mar 05, 2023 2:09 pm; edited 1 time in total |
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nxjoseph
n00b
Joined: 05 Mar 2023
Posts: 13
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| Posted: Sun Mar 05, 2023 2:09 pm Post subject: |
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Great. Let me try this command after booting my custom kernel. I have switched to my old kernel because writing replies on a phone is not comfortable for me.
Edit;
I had ufw running, then i tried disabling it and network is started to work.
after tried enabling ufw, it gave this output below:
| Code: |
# ufw enable
ERROR: problem running ufw-init
Warning: Extension limit revision 0 not supported, missing kernel module?
iptables-restore: line 75 failed
Warning: Extension recent revision 0 not supported, missing kernel module?
Warning: Extension limit revision 0 not supported, missing kernel module?
iptables-restore: line 51 failed
Problem running '/etc/ufw/before.rules'
Problem running '/etc/ufw/user.rules'
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Now, pinging and network are working. Thank you.
I guess ufw was not allowing me to connect to network because of missing drivers that ufw need in kernel.
Edit;
After configuring custom kernel for ufw, it is working successfully.
| Code: |
$ ping 172.217.16.206
64 bytes from 172.217.16.206: icmp_seq=1 ttl=113 time=63.0 ms
64 bytes from 172.217.16.206: icmp_seq=2 ttl=113 time=62.6 ms
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Rebuilding ufw was wanting those configs below too.
| Code: |
CONFIG_NETFILTER_XT_MATCH_COMMENT=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_HL=y
CONFIG_NETFILTER_XT_MATCH_LIMIT=y
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
CONFIG_NETFILTER_XT_MATCH_RECENT=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
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https://wiki.gentoo.org/wiki/Ufw#Kernel |
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