networking – No wifi network connectivity even tho dhcp has leased me an ip. Help!

hope everybody is well.
So heres the problem, I start up Ubuntu but when I try connecting to internet its a no go. Ive made sure that I have an ip. So check on that. It is however different than what it normally is. Went from to I cannot ping router(,
Host Network Unreachable.
But I can ping and ssh into my raspberry pi which hosts a pihole server. Also if i plug an Ethernet cord into the laptop ill get connection, until I try wifi.
Everything else can connect to internet, except for poor Ubuntu. Someone please help me solve this.

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windows – network printer setup on win10 domain clients on a LAN

I have a computer work lab, it is a simple LAN with no real internet access. It started out as only a few PC’s (years ago) and when it was just 4 or less the admin’s did everything local on each pc manually. Now we have over 10 pc’s and a windows domain server was setup to facilitate managing 10+ pc’s.

Picture one large room, 10 win10 PC’s and a domain server off to the side, and a network printer.

Issue we are having is it seems any user (in their profile?) can have any number of network printers show up, and when you select any one of them they don’t work it gives some kind of error. And it’s nearly always the same xerox printer name & mac showing up but then you see something like copy of. Now the printer does work, people can successfully print to it provided they have enough computer knowledge on how to set that up on whichever PC they are sitting at at the time. But it is often frustrating… and having gone from win2000 to winxp to win7 to win8 to win10….

is it too much to ask that for any user new or existing on this little LAN with a Windows 2016 domain server that just one printer show up cleanly in devices & printers, and all anybody should have to do is do File – Print and it simply prints ?

How do you make the following happen?

  • For any user who logs into a client PC on this little LAN having a Windows Domain Server, they see only one printer under devices & printers
  • The User does not have to do anything other than mouse click File – Print. Mouse click file print always works!

active directory – Limit access to a network share to specific computer

There are certain confidential data and we want to make sure that is does not get copied by user and eventually leaked out of organisation.

For achieving the same, we have defined a restricted windows machine which a user can access but no data can be taken in or out. Users on this machine are supposed to access to those sensitive items which are not supposed to be copied.

What i am looking for is to define sub-paths of a network share, to be accessible from certain computers only. Like, if userA access folderA in the share from Workstation-1, he should get access denied, but instead if he access it from Workstation-2, he should get access.

I am using AD controlled environment, with windows Server 2016. Had look in Dynamic access control, but don’t know if its possible with it.

windows 10 – Network Adapter not displaying in device manager

I have an HP Compaq Presario CQ56. All of a sudden my laptop could not even see any WiFi network. I checked my network adapter (Ralink RT3090 802.11b/g/n) in device manager only to find out that it has disappeared. Very few times after that, when I put on the system, the network adapter showed up as a useless hidden device. I’ve tried several tweaks such as cmd’s netsh winsock reset and ipconfig/flushdns but no luck, downloaded and installed the driver but still the same. I’ve also installed the latest version of windows 10 (2004) but still no luck. Currently, the adapter does not display at all.
See image here

What do you think might be the problem?

networking – why linux host do not contain ip after add bridge network with kvm virtual machine

After I join the bridge network br0 in my Fedora 32 workstation machine, my host machine config look like this using ifconfig:

(dolphin@MiWiFi-R4CM-srv .ssh)$ ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet  netmask  broadcast
        inet6 fe80::4b2:78ff:fe35:2c73  prefixlen 64  scopeid 0x20<link>
        ether 06:b2:78:35:2c:73  txqueuelen 1000  (Ethernet)
        RX packets 262706  bytes 549324981 (523.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 176370  bytes 17361895 (16.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eno2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 2c:f0:5d:2c:6e:d5  txqueuelen 1000  (Ethernet)
        RX packets 930979  bytes 1290671619 (1.2 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 352599  bytes 31255959 (29.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xa1200000-a1220000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet  netmask
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 8324  bytes 3833687 (3.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8324  bytes 3833687 (3.6 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet  netmask  broadcast
        ether 52:54:00:39:c6:9f  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

vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::fc54:ff:fe36:a8ef  prefixlen 64  scopeid 0x20<link>
        ether fe:54:00:36:a8:ef  txqueuelen 1000  (Ethernet)
        RX packets 178749  bytes 13514111 (12.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 334263  bytes 712473913 (679.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vnet1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::fc54:ff:fe90:27a6  prefixlen 64  scopeid 0x20<link>
        ether fe:54:00:90:27:a6  txqueuelen 1000  (Ethernet)
        RX packets 479  bytes 49167 (48.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 29585  bytes 2427883 (2.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vnet2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::fc54:ff:fe1b:74f9  prefixlen 64  scopeid 0x20<link>
        ether fe:54:00:1b:74:f9  txqueuelen 1000  (Ethernet)
        RX packets 559  bytes 61180 (59.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 29231  bytes 2402385 (2.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

althrough everything going fine, I could using internet and kvm virtual machine could ping host machine and host machine could login kvm virtual machine.But I still have confusing qustion:why my host interface eno2 ip disappeared? what is my host ip?

networking – How do I change the Default Switch on Windows 10 from cable network interface to wifi interface?

I have 2 Windows 10 laptops connecting to the same home wifi, laptop1 and laptop2. I can ping from laptop1 to laptop2, but not vice versa.

On this wifi, laptop1 IP address is; laptop2 is

Here is on laptop2:


Windows IP Configuration

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::c14d:dce0:8bbb:bc8c%24
   IPv4 Address. . . . . . . . . . . :
   Subnet Mask . . . . . . . . . . . :
   Default Gateway . . . . . . . . . :

Ethernet adapter vEthernet (Default Switch):   **<=== This "Default Switch" is my suspicion**

   Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::39bb:75b6:d582:f39a%9
   IPv4 Address. . . . . . . . . . . :
   Subnet Mask . . . . . . . . . . . :
   Default Gateway . . . . . . . . . :

When I ping laptop1, ping times out.

My suspicion is, as you see from above, the “Default Switch” is another network and I do not connect at all.

So my question is how to change the “Default Switch”? Googling does not identify the answer. I did change the network priority between the 2 networks on laptop2, it does not help. Here is route output:

C:WINDOWSsystem32>route -4 PRINT
Interface List
 24...20 16 b9 69 60 2c ......Intel(R) Dual Band Wireless-AC 8265
  9...62 15 11 43 ce 86 ......Hyper-V Virtual Ethernet Adapter
 12...0a 00 27 00 00 0c ......VirtualBox Host-Only Ethernet Adapter #2
 11...20 16 b9 69 60 2d ......Microsoft Wi-Fi Direct Virtual Adapter
  7...22 16 b9 69 60 2c ......Microsoft Wi-Fi Direct Virtual Adapter #2
 15...20 16 b9 69 60 30 ......Bluetooth Device (Personal Area Network)
  1...........................Software Loopback Interface 1

IPv4 Route Table
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
     10         On-link    331         On-link    331         On-link    331         On-link    271         On-link    271         On-link    271         On-link    266         On-link    266

Please help out.

network – Ethernet adapters conversion from MacBook Air (Mid 2012, 13″) to MacBook Pro (Late 2019, 16″)

So I’ve just bought the latest MacBook Pro (late 2019, 16″) and bumped into the common issue of not finding 1 piece of Ethernet adapter. I want to use only Apple made adapters, so I’m left with the option of buying Apple Thunderbolt 2 to Ethernet adapter AND the Apple Thunderbolt 2 to Thunderbolt 3 adapter and daisy chain them.
So, since I’ve been using MacBook Air (mid 2012, 13″), I already own an Ethernet to Thunderbolt adapter (Apple made).
The only thing that I’m still not certain about is – does the adapter I already have use Thunderbolt 1 or Thunderbolt 2?
According to Apple’s spec, MacBook Air (mid 2012, 13″) has Thunderbolt 1, but I have a feeling it’s actually Thunderbolt 2, because when I look at system’s preference, I see that the thunderbolt connection throughput is 10GB/s * 2 (written exactly like that – * 2!) So.. 10*2 is 20, and 20GB/s is equivalent to Thunderbolt 2, right?
I also tried to read the specs of the Ethernet to TB adapter I have, but it doesn’t mention which TB it is!

Bottom line: can I simply purchase the TB2 to TB3 adapter and chain it to the current Ethernet to TBx (x=1/2, I don’t know!) I already have?

networking – 2. Consider a network Specify the 04 subnetworks of the aforementioned network with complete details of each network

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lightning network – How to set up LndHub on top of RaspiBolt ir RaspiBlitz?

The RaspiBlitz is running LND. So, when you look at, you will find that you only need to install Redis and then you can set up as in their documentation:

git clone
cd LndHub
npm i

Install bitcoind, lnd and redis. Edit config.js and set it up correctly. Copy admin.macaroon and tls.cert in root folder of LndHub.

You can do all of that via ssh on your RaspiBlitz.