ubuntuusers.de

Hallo,

ich habe vier Rechner im Netzwerk, die alle im home-Netzwerk miteinander kommunizieren können.

Bei einem Rechner mit Lubuntu kann ich aber nicht ins Internet. Außerdem läßt sich das graphische Menü "Netzwerk" nicht entsperren, da der zugehörige Button nicht funktioniert.

Hat jemand eine Idee, wo das Problem des Internetzuganges liegt? Das Problem ist erst aufgetreten, nachdem ich von 16.04 auf 18.04 upgraded habe.

Gruß Fir

Zeige

ping 8.8.8.8 -c 2

ip route show

ping heise.de -c 2

ifconfig

Da ich ja keinen Internetzugang habe, habe ich mich von einem anderen Rechner mit

ssh manfred@192.168.178.30 verbunden. Ich hoffe, daß ist ok.

manfred@manfred-lubuntu:~$ ifconfig
eth0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:10:dc:30:de:f5  txqueuelen 1000  (Ethernet)
        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

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Lokale Schleife)
        RX packets 4834  bytes 325529 (325.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4834  bytes 325529 (325.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.178.30  netmask 255.255.255.0  broadcast 192.168.178.255
        inet6 2a0a:a541:ed7:0:16c2:11ee:1df6:7225  prefixlen 64  scopeid 0x0<global>
        inet6 fd00::3290:2827:d486:d22  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::a58d:2abb:5eba:2f19  prefixlen 64  scopeid 0x20<link>
        ether 74:da:38:65:44:d2  txqueuelen 1000  (Ethernet)
        RX packets 372  bytes 70047 (70.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 161  bytes 27366 (27.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

manfred@manfred-lubuntu:~$ ping 8.8.8.8 -c 2
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=122 time=39.7 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=122 time=24.4 ms

--- 8.8.8.8 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 24.426/32.073/39.720/7.647 ms
manfred@manfred-lubuntu:~$ 

manfred@manfred-lubuntu:~$ ip route show
default via 192.168.178.1 dev wlan1 proto dhcp metric 600 
192.168.178.0/24 dev wlan1 proto kernel scope link src 192.168.178.30 metric 600 
manfred@manfred-lubuntu:~$ 

manfred@manfred-lubuntu:~$ ping heise.de -c 2
ping: heise.de: Temporärer Fehler bei der Namensauflösung
manfred@manfred-lubuntu:~$ 

Zeige alle Terminal-Ausgaben von hier in Codeblöcken zur "Diagnose".

Gruss

praseodym

Internet geht, es liegt ein DNS-Problem vor. Zeige zusätzlich

nslookup heise.de 8.8.8.8

manfred@manfred-lubuntu:~$ nslookup heise.de 8.8.8.8
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	heise.de
Address: 193.99.144.80
Name:	heise.de
Address: 2a02:2e0:3fe:1001:302::

manfred@manfred-lubuntu:~$ 

Jetzt bitte noch den Rest von praseodym.

manfred@manfred-lubuntu:~$ ping -c 2 www.ubuntuusers.de
ping: www.ubuntuusers.de: Temporärer Fehler bei der Namensauflösung
manfred@manfred-lubuntu:~$ 

praseodym, das sind aber doch sehr viele Befehle,

manfred@manfred-lubuntu:~$ route -n
Kernel-IP-Routentabelle
Ziel            Router          Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.178.1   0.0.0.0         UG    600    0        0 wlan1
192.168.178.0   0.0.0.0         255.255.255.0   U     600    0        0 wlan1
manfred@manfred-lubuntu:~$ arp -av
_gateway (192.168.178.1) auf 38:10:d5:0b:56:2e [ether] auf wlan1
? (192.168.178.25) auf 00:87:25:25:37:71 [ether] auf wlan1
Einträge: 2   Ignoriert: 0   Gefunden: 2
manfred@manfred-lubuntu:~$ ip neigh show 
192.168.178.1 dev wlan1 lladdr 38:10:d5:0b:56:2e STALE
192.168.178.25 dev wlan1 lladdr 00:87:25:25:37:71 REACHABLE
manfred@manfred-lubuntu:~$ 

Wir wollen ja auch etwas über die Hardware wissen

lspci -nnk
lsusb
lsmod

manfred@manfred-lubuntu:~$ lspci -nnk
00:00.0 Host bridge [0600]: Intel Corporation 82845 845 [Brookdale] Chipset Host Bridge [8086:1a30] (rev 04)
	Subsystem: Intel Corporation 82845 845 [Brookdale] Chipset Host Bridge [8086:1a30]
	Kernel driver in use: agpgart-intel
00:01.0 PCI bridge [0604]: Intel Corporation 82845 845 [Brookdale] Chipset AGP Bridge [8086:1a31] (rev 04)
	Kernel modules: shpchp
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev 05)
	Kernel modules: shpchp
00:1f.0 ISA bridge [0601]: Intel Corporation 82801BA ISA Bridge (LPC) [8086:2440] (rev 05)
	Kernel driver in use: lpc_ich
	Kernel modules: intel_rng, lpc_ich
00:1f.1 IDE interface [0101]: Intel Corporation 82801BA IDE U100 Controller [8086:244b] (rev 05)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 82801BA IDE U100 Controller [1462:3990]
	Kernel driver in use: ata_piix
	Kernel modules: pata_acpi
00:1f.2 USB controller [0c03]: Intel Corporation 82801BA/BAM UHCI USB 1.1 Controller #1 [8086:2442] (rev 05)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 82801BA/BAM UHCI USB 1.1 Controller [1462:3990]
	Kernel driver in use: uhci_hcd
00:1f.3 SMBus [0c05]: Intel Corporation 82801BA/BAM SMBus Controller [8086:2443] (rev 05)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 82801BA/BAM SMBus Controller [1462:3990]
	Kernel modules: i2c_i801
00:1f.4 USB controller [0c03]: Intel Corporation 82801BA/BAM UHCI USB 1.1 Controller #2 [8086:2444] (rev 05)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 82801BA/BAM UHCI USB 1.1 Controller [1462:3990]
	Kernel driver in use: uhci_hcd
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation NV17 [GeForce4 MX 460] [10de:0170] (rev a3)
	Subsystem: MEDIATEK Corp. NV17 [GeForce4 MX 460] [14c3:8630]
	Kernel driver in use: nouveau
	Kernel modules: rivafb, nvidiafb, nouveau
02:00.0 USB controller [0c03]: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller [1106:3038] (rev 62)
	Subsystem: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller [1106:3038]
	Kernel driver in use: uhci_hcd
02:00.1 USB controller [0c03]: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller [1106:3038] (rev 62)
	Subsystem: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller [1106:3038]
	Kernel driver in use: uhci_hcd
02:00.2 USB controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 65)
	Subsystem: VIA Technologies, Inc. USB 2.0 Controller [1106:3104]
	Kernel driver in use: ehci-pci
02:02.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044] (rev 46)
	Subsystem: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044]
	Kernel driver in use: firewire_ohci
	Kernel modules: firewire_ohci
02:03.0 Communication controller [0780]: Ambient Technologies Inc HaM controllerless modem [1813:4000] (rev 02)
	Subsystem: Creatix Polymedia GmbH HaM controllerless modem [16be:0002]
02:06.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139] (rev 10)
	Subsystem: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139]
	Kernel driver in use: 8139too
	Kernel modules: 8139cp, 8139too
02:07.0 Multimedia audio controller [0401]: C-Media Electronics Inc CMI8738/CMI8768 PCI Audio [13f6:0111] (rev 10)
	Subsystem: Micro-Star International Co., Ltd. [MSI] CMI8738/CMI8768 PCI Audio [1462:3990]
	Kernel driver in use: snd_cmipci
	Kernel modules: snd_cmipci
manfred@manfred-lubuntu:~$

manfred@manfred-lubuntu:~$ lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 0000:3825  
Bus 002 Device 002: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
manfred@manfred-lubuntu:~$ 

manfred@manfred-lubuntu:~$ lsmod
Module                  Size  Used by
ccm                    20480  9
arc4                   16384  2
snd_wavefront          36864  0
snd_opl3_synth         20480  0
snd_seq_midi_emul      16384  1 snd_opl3_synth
snd_cs4236             32768  0
snd_cmipci             32768  2
snd_opl3_lib           20480  4 snd_cs4236,snd_cmipci,snd_wavefront,snd_opl3_synth
snd_wss_lib            28672  2 snd_cs4236,snd_wavefront
snd_hwdep              16384  2 snd_opl3_lib,snd_wavefront
rtl8xxxu              110592  0
snd_pcm                86016  3 snd_cs4236,snd_wss_lib,snd_cmipci
snd_mpu401             16384  0
mac80211              675840  1 rtl8xxxu
cfg80211              532480  1 mac80211
snd_mpu401_uart        16384  4 snd_mpu401,snd_cs4236,snd_cmipci,snd_wavefront
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            28672  3 snd_mpu401_uart,snd_seq_midi,snd_wavefront
snd_seq                57344  4 snd_seq_midi_event,snd_seq_midi_emul,snd_seq_midi,snd_opl3_synth
input_leds             16384  0
snd_seq_device         16384  5 snd_seq,snd_opl3_lib,snd_rawmidi,snd_seq_midi,snd_opl3_synth
snd_timer              28672  4 snd_seq,snd_opl3_lib,snd_wss_lib,snd_pcm
serio_raw              16384  0
snd                    65536  17 snd_mpu401,snd_hwdep,snd_seq,snd_cs4236,snd_opl3_lib,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_wss_lib,snd_cmipci,snd_seq_device,snd_wavefront,snd_pcm
ns558                  16384  0
lpc_ich                24576  0
gameport               16384  3 ns558,snd_cmipci
soundcore              16384  1 snd
shpchp                 32768  0
mac_hid                16384  0
sch_fq_codel           20480  6
parport_pc             32768  1
ppdev                  20480  0
lp                     20480  0
parport                45056  3 lp,parport_pc,ppdev
ip_tables              20480  0
x_tables               28672  1 ip_tables
autofs4                40960  2
nouveau              1527808  5
mxm_wmi                16384  1 nouveau
wmi                    20480  2 mxm_wmi,nouveau
video                  40960  1 nouveau
i2c_algo_bit           16384  1 nouveau
ttm                    94208  1 nouveau
hid_generic            16384  0
drm_kms_helper        151552  1 nouveau
usbhid                 49152  0
syscopyarea            16384  1 drm_kms_helper
hid                    98304  2 hid_generic,usbhid
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
drm                   339968  8 nouveau,ttm,drm_kms_helper
firewire_ohci          36864  0
8139too                32768  0
firewire_core          57344  1 firewire_ohci
8139cp                 28672  0
mii                    16384  2 8139cp,8139too
crc_itu_t              16384  1 firewire_core
pata_acpi              16384  0
floppy                 61440  0
manfred@manfred-lubuntu:~$ 

Für mich sieht das zwar nach nem DNS-Problem aus, aber egal. Interessant wäre

cat /etc/resolv.conf

und

resolvectl status

manfred@manfred-lubuntu:~$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
# 127.0.0.53 is the systemd-resolved stub resolver.
# run "systemd-resolve --status" to see details about the actual nameservers.
nameserver 127.0.0.53


manfred@manfred-lubuntu:~$ resolvectl status
resolvectl: Befehl nicht gefunden.
manfred@manfred-lubuntu:~$

Zeige

systemd-resolve --status

und

nmap 127.0.0.53

manfred@manfred-lubuntu:~$ systemd-resolve --status
Global
          DNSSEC NTA: 10.in-addr.arpa
                      16.172.in-addr.arpa
                      168.192.in-addr.arpa
                      17.172.in-addr.arpa
                      18.172.in-addr.arpa
                      19.172.in-addr.arpa
                      20.172.in-addr.arpa
                      21.172.in-addr.arpa
                      22.172.in-addr.arpa
                      23.172.in-addr.arpa
                      24.172.in-addr.arpa
                      25.172.in-addr.arpa
                      26.172.in-addr.arpa
                      27.172.in-addr.arpa
                      28.172.in-addr.arpa
                      29.172.in-addr.arpa
                      30.172.in-addr.arpa
                      31.172.in-addr.arpa
                      corp
                      d.f.ip6.arpa
                      home
                      internal
                      intranet
                      lan
                      local
                      private
                      test

Link 3 (wlan1)
      Current Scopes: none
       LLMNR setting: yes
MulticastDNS setting: no
      DNSSEC setting: no
    DNSSEC supported: no

Link 2 (eth0)
      Current Scopes: none
       LLMNR setting: yes
MulticastDNS setting: no
      DNSSEC setting: no
    DNSSEC supported: no
lines 20-42/42 (END)