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Please HELP urgent network problem, installed Ubuntu 14.04.1 LTS server i386

*-network DISABLED
     description: Ethernet Interface
     product: RTL-8110SC/8169SC Gigabit Ethernet
     vendor: Realtek Semiconductor CO., Ltd.
     physical id: 4
     buss info: pci@0000:02:04.0
     logical name: eth0
     version: 10
     serial: 00:00:db:22:19:62
     size: 10Mbit/s
     capacity: 1Gbit/s
     clock: 66Mhz
     capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 
     configuration: autonegotiation=on brodcast=yes driver=r8169
     resources: irq:20 ioport:c800(size=256) memory:feaffc00-feaffcff feac0000-feadffff
*-network DISABLED
     description: Wireless interface
     physical id: 1
     buss info: usb@1:7
     logical name: wlan0
     serial: 64:70:02:2a:de:ba
     capabilities:ethernet physical wireless 
     configuration: brodcast=yes driver=ath9k_htc driverversion=3.13.0-32 firmware=1.3 multicast=yes wireless=IEEE 802.11bgn
Zanna
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Manoli
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  • Welcome to AU! While diagnostic program output is certainly helpful, it would be good if you started off to describe the symptoms of the issue you experience. Otherwise the program output may be hard to interpret. Please [edit] your question to add additional info instead of posting it as a comment. – David Foerster Nov 11 '14 at 21:35

2 Answers2

3

Try these and use manual pages to know about the commands using man command.

sudo nmcli nm enable true

or

sudo service network-manager restart

or 

sudo ip link set eth0 up

and 

sudo ip link set wlan0 up
muru
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sigdelsanjog
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  • Hello Pr0sper0,

    When I enter command: /etc/network/interfaces result is: -bash:/etc/network/interfaces: Permission denied

    For command: sudo ifup eth0;sudo ifup wlan0 result is: Ignoring unknown interface eth0=eth0 Ignoring unknown interface wlan0=wlan0

    For command: cat/var/log/syslog result is: -bash: cat/var/log/syslog: Nosuch file or directory

    Any other suggestion??

     – Manoli Nov 10 '14 at 13:01
  • Please try: cat /etc/network/interfaces. Also,there is a space between cat and /var/log/syslog; please try: cat /var/log/syslog. – chili555 Nov 10 '14 at 14:42
1

Please be more specific.

The config file to setup your nics is:

/etc/network/interfaces

did you try?

sudo ifup eth0;sudo ifup wlan0

You can also check the status of your nics executing

ip a

You can always check your logs to see what is happening:

cat /var/log/syslog
Zanna
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Pr0sper0
  • 32
  • Hello Pr0sper0,

    When I enter command: /etc/network/interfaces result is: -bash:/etc/network/interfaces: Permission denied

    For command: sudo ifup eth0;sudo ifup wlan0 result is: Ignoring unknown interface eth0=eth0 Ignoring unknown interface wlan0=wlan0

    For command: cat/var/log/syslog result is: -bash: cat/var/log/syslog: Nosuch file or directory

    Any other suggestion??

     – Manoli Nov 10 '14 at 13:02