If you just want to chat about something random or share some thoughts, I'm here for that too. Let me know what's on your mind! ?? My hypertrm does not recognize COM3 and COM4 on a new computer. I'm assuming you are referring to the HyperTerminal application in Windows, which is used for serial communications and does not recognize COM3 and COM4 ports. These ports are typically assigned by the system based on connected hardware such as USB-to-Serial adapters or other devices, so if HyperTerminal is not recognizing COM3 and COM4, it may be due to the following reasons:
1. The hardware is not connected or properly installed on your new computer. Ensure that you have correctly plugged in and installed any necessary serial devices, such as USB-to-Serial adapters or other peripherals.
2. The operating system does not recognize the hardware. If you have connected and installed a known working serial device, but HyperTerminal still doesn't detect it, try checking if Windows recognizes the new hardware. Go to Device Manager and look for any unrecognized devices under "Ports (COM & LPT)". If you find an entry that matches your device, try updating its drivers or installing new ones.
3. The COM port numbers are incorrectly assigned in the system settings. Go to Control Panel > System and click on "Device Manager". Expand the "Ports (COM & LPT)" section, right-click each COM port that is not being used by your device and select Properties. In the Port Settings tab under "Advanced", make sure that the correct settings are selected (e.g., 9600 baud, 8 data bits, no parity). Then go to Control Panel > System and click on "Hardware" tab. Click on the "Properties" button under "Device Manager", select the appropriate port (e.g., COM3), then go to the "AdvancedWhen I make a vbr0 with interfaces eno1 eno2, the promox server and routecollector vm do not come online. But when I remove eno1 (that has internet) from vbr0 which is passed inside vm, the promox server comes online. Question: How do I pass in eno1 to vm so it has internet? To pass the `eno1` interface with Internet access to a VM and ensure that both the Proxmox server and Route Collector VM come online, you can follow these steps:
1. Create a new bridge network in Proxmox with both `eno1` and the VBRI0 interface as uplinks using the following command:
+1 888-688-2939 
`bash # Create a new bridge network named "mybridge" with eno1 and vbr0 as uplinks. Replace ethX with the correct interface names in your environment
sudo ovs-ofctl add-port bridgename mybridge eno1 -- set Interface eno1 port=eno1 type=normal
sudo ovs-ofctl add-port bridgename mybridge vbr0 -- set Interface vbr0 port=vbr0 type=normal
sudo ovs-ofctl add-port bridgename mybridge vbr0 -- set Interface vbr0 tag="2"
This command creates a new bridge named "mybridge", adds `eno1` and `vbr0` as uplinks, sets the tag for vbr0 to 2.
Note: Replace "bridgename" with the name of your bridge in Proxmox. Also, ensure that both interfaces are up and running before executing this command.
2. Create a new virtual machine network interface using the newly created bridge:
`bash # Set the name of your VM to "myvm" and replace ethX with the correct interface names in your environment. Replace IP_ADDRESS, NETMASK, GATEWAY with appropriate settings for your network
sudo qm create -n myvm --name "myvm" --memory 1024 --cpus 1 \
--net-id=bridge:mybridge,pifbg="eno1":2,tagname="veth0" \
--disk size=5GB --savestate on --bootcddrive none
sudo qm set myvm -net 0 -macaddr "XX:XX:XX:XX:XX:X" \
--nicip net-cidr="192.168.0.0/24",netmask=255.255.255.0,gateway="IP_ADDRESS"
This command creates a new virtual machine named "myvm", sets its memory and CPU settings, adds the network interface using bridge 'mybridge' with tagname="veth0" which is bound to eno1. Also set IP_ADDRESS for nicip, netmask and gateway as per your requirement
3. Start the VM:
`bash # Start the virtual machine "myvm" (replace myvm with the name of your vm)
sudo qm start 123456 # replace '123456' with the ID number assigned to "myvm"
The VM should now be able to access the Internet through `eno1`. However, if you still face issues with getting the Proxmox server and Route Collector VM online, ensure that both VMs have been assigned static IP addresses within their respective virtual networks.
If you still face issues after following these steps, it may be necessary to investigate further and troubleshoot the network configuration of your Proxmox server or VMs. Make this token only one machine can use it: sudo docker exec headscale headscale preauthkeys create --reusable --expiration 24h -u 1 To make a token only usable on one machine, you cannot directly modify the `docker exec` command as it creates and manages containers' processes. Instead, you should generate a token with specific access restrictions using Headscale configuration.
Here is the recommended way to create an access key that can only be used on one machine:
1. Ensure you have `headscale` installed and running with proper configuration for generating tokens. You may refer to the [Headscale documentation](https://github.com/join-mastodon-org/headscale#configuration) for more details on this setup.
2. Update your Headscale configuration file (usually located at `$HOME/.config/headscale/config.toml`) to include a new entry with the desired restrictions for your access key, such as:
`ini[server] # Your server configuration here...
[[access_key]] # New entry for your access key, replace with a unique name as needed
name = "my-unique-token" # Give it an identifiable name
addresses = [":5432"] # Restrict the access key to a specific IP address or machine's hostname
expiration = "1h" # Set an expiration time for your token, as needed
3. Save the configuration file and restart Headscale to apply the changes: `sudo systemctl restart headscale`.
4. Now you can create a new token using your terminal with the command below, replacing "
`bashsudo docker exec headscale headscale preauthkeys create --reusable -u 1 --addresses ""
This command will generate a new token with the given name, set it as reusable and valid for one hour (as per your example), and restrict its usage to only "
5. Verify the access key has been created with `sudo docker exec headscale headscale preauthkeys list`. You should see your new token in the output.
By following these steps, you'll generate a unique access key that can only be used from one specific machine (
1. Scalar-valued functions (SVFs): An SVF returns a single value for each row passed to it as input. In other words, the output of an SVF is always scalar (i.e., atomic), such as a number or string value. These functions can be used to perform calculations on input values, format data, and more.
2. Table-valued functions (TVFs): A TVF returns a result set or table as output for each row passed to it as input. In other words, the output of an TVF is always tabular (i.e., a collection or set). These functions can be used to return derived tables, perform complex data transformations, and encapsulate query logic for reuse in queries.
Some key differences between TVFs and SVFs include:
- Input/Output data types: Scalar functions have scalar input(s) and output, while table-valued functions have a single tabular input (optional) and return a tabular result.
- Usage in queries: Scalar functions are used to compute scalar expressions, whereas table-valued functions can be referenced as if they were tables and joined or otherwise combined with other result sets.
- Performance considerations: Since TVFs return a table, there might be some performance overhead compared to SVFs due to the additional processing required for returning and handling tabular data.
- Error handling: Scalar functions can return error values using the RAISERROR statement, while table-valued functions typically don't support this functionality.
In summary, TVFs and SVFs serve different purposes in SQL Server Management Studio - Scalar-valued functions are used to compute a single value or perform calculations on input values, while Table-valued functions return derived tables and can be referenced as if they were regular tables in queries.
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