vcn | CNIL vcn CLI for notarization and authentication | DevOps library
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kandi X-RAY | vcn Summary
** CodeNotary.io & CNIL vcn CLI for notarization and authentication of digital artifacts**.
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Trending Discussions on vcn
QUESTION
I have successfully assigned an IPv6 block to my VCN. When I try to assign a block to my subnet within the same VCN, it asks me to choose an IPV6 CIDR block.
The IPv6 assigned to my VCN: 2603:c020:4002:6c00::/56
I am trying to assign the following to my subnet:
2603:c020:4002:6c91::/64
The GUI lets me edit only the '91' part in there, as demonstrated above.
When I confirm the change, it fails with an error (image attached). I have tried destroying the resources and recreating the VCN, subnet, etc., for troubleshooting. IPv4 works fine, and I can create resources without any hiccups.
Is that a bug in OCI? I have been assigned 2603:c020:4002:6c00::/56 to my VCN. I cannot use 2603:c020:4002:6c91::/64 in my subnet because it belongs to 2603:c020:4002:6c91::/56. I can use 2603:c020:4002:6c00:91::/64 in my subnet. But then, Oracle is not letting me do this and giving me the error "NotAuthorizedOrNotFound". The error is inevitable as 2603:c020:4002:6c91::/64 does not belong to my VCN.
I may be wrong here; my IPv6 skills are not top-notch.
In any case, please help. I am a free tier subscriber and cannot raise a ticket directly.
...ANSWER
Answered 2021-May-04 at 13:31I used a wizard to create the VCN. The wizard is not IPv6 aware, and I assigned an IPv6 manually to it later via the web GUI. The same wizard creates two subnets - one public and one private. I was trying to attach an IPv6 range to those subnets. But it was giving me an error. I created a new subnet in the VCN and was able to assign IPv6 to that subnet.
The solution was - manually create a new subnet in the VCN and add IPv6 to it.
QUESTION
I am trying to get my nodejs website up on the Oracle Cloud Compute VPS (forever free) with Ubuntu 18.04. (That it is an Oracle server seems to be very important in this case). I can curl localhost (then it returns the HTML), but I cannot access it via the public ip from my pc.
To work around sudo for port 80, I applied:
...ANSWER
Answered 2021-Feb-12 at 19:29There was indeed another spot where the firewall needed to be opened outside of the terminal.
- Go to Compute > Instances
- Click on your Instance name. You will see a detailed page describing a lot of properties.
- Click on the subnet.
- Click on Default Security List for vcn-...
- Add Ingress Rules
Try to surf to your public IP again while your site is running, and it works!
For reading more on this, and to see where I found it, see:
https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/securitylists.htm#Default
https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/securityrules.htm#stateful
QUESTION
I came across this piece of code and was wondering if this needs to have a R/W Mutex.
...ANSWER
Answered 2020-Oct-05 at 16:09You need to protect the map from being concurrently accessed. The code is wrong because you are read-locking the mutex, but writing to the map.
QUESTION
I would like to know if there is a way to perform ansible --check dry run for oracle cloud infrastructure modules.
Example: Performing dry run before Updating DHCP option of existing VCN subnets
...ANSWER
Answered 2020-Aug-18 at 19:54the new ansible collections modules support check_mode which performs dry run before actually performing action. For example with updating DHCP option of existing VCN subnets, you can perform the dry-run by using the following task:
QUESTION
The following code includes a complete description of the problem as a TODO. Included are cut/pasteable command lines to compile the code (without error). Child instances contain their own name, and the initializer should copy it. Child instances also contain a pointer to their Parent this instance. Neither of these should print garbage. Child also uses its Parent instance pointer to print the parent name. This name is initialized by the Parent ctor, and so should not print as garbage. I even ran it through clang with -fsyntax-only, without reported warning/error. I must be missing something. Help would be appreciated.
...ANSWER
Answered 2020-Jul-16 at 01:12With for(auto name : names) ...
, name
is a local variable that's a copy of the string from the vector. That variable is created and destroyed on each iteration of the loop. Then you create Child
instances with name
as an argument - they store a reference to that variable in their name
member. Soon afterwards, the variable is destroyed and all those references become dangling.
By the time the program actually tries to use Child::name
members, the strings are long gone, and the references are long dangling. Any attempt to use them exhibits undefined behavior, by way of accessing an object after its lifetime has ended.
QUESTION
I have deployed the Spring boot app on the OCI compute and its comping up nicely. Compute is created with public ip and have the security list updated to allow connections from internet. But, I wasn't able to hit the end point from internet. For that reason, I thought of configuring the load balancer.
Created load balancer in a separate subnet(10.0.1.0/24), routing table and security list. Configured the LB's security list to send all protocol packets to compute's CIDR(10.0.0.0/24) and configured compute's security list to accept the packets from LB. I was expecting LB to make connection with back end. But, its not.
I am able to hit the LB from internet :-
Lb's routing table with all ips routed through internet gateway. There is no routing defined for compute's CIDR as its in the VCN.
LB has its own security list, which has allowed out going packets to compute and incoming from internet as below:
Compute's security list accepting packet's from LB:
Let me know, if I am missing something here.
My backend set connection configuration from LB:
LB fails to make connection with backend, there seems to be no logging info available :
App is working fine , if I access from the compute node :
...ANSWER
Answered 2019-Nov-17 at 05:35The LB has a health check that tests the connection to your service. If it fails, the LB will keep your backend out of rotation and give you the critical health like you're seeing.
You can get to it by looking at the backend set and clicking the Update Health Check button.
Edit: Ultimately I figured it out, you should run the following commands on your backend:
QUESTION
Good Day everybody! Is there away to solve this problem ValueError: invalid literal for int() with base 10: '\r' im getting this problem after reading the data from mysql database, i have seen related post same problem , but its not working the solution with me such like here and here and here the data can be read successfully from database but the program stop into this line in the code indices = list(int(x) for x in data[-2:]) : the code working fine when i set the value direct but the problem happen when i read data from database. suppose this data is store in database:
...ANSWER
Answered 2020-Jan-31 at 19:38It seems you are getting CRLF
from db just use strip
function
QUESTION
I am trying to create an OCI instance with the Java SDK. I am getting an error in routeRules.
When I commented the following line, I was able to create an instance. But in that machines route is not enabled.
addInternetGatewayToRouteTable(vcnClient, compartmentId, vcn.getDefaultRouteTableId(), internetGateway);
ANSWER
Answered 2019-Apr-09 at 12:08There is a bug in the code, you can replace destination
in the addInternetGatewayToRouteTable(..)
method
QUESTION
How should I specify the Oracle BGP IP Address for FastConnect Private Peering? The documentation just says "The BGP peering IP address you want to use for the DRG, with either a /30 or /31 subnet mask." Should it be part of the VCN to which the DRG is assigned? Or it could be anything else I choose?
...ANSWER
Answered 2019-Feb-07 at 11:39I would always recommend that the BGP peering IPs should be unique in your network and certainly should not be within the range of the VCN you want to attach to your DRG, or indeed any VCN that you might want to reach through the DRG via Transit Routing.
Hope that helps,
Ben
QUESTION
I use OkHttp
to receive text from a URL
. The url is a php
script.
PHP
:
ANSWER
Answered 2018-Oct-26 at 14:21You are returning text/html
, the default with PHP. Obviously the browser renders the stuff you're supposed to see, but indeed the response the browser received had the full HTML.
Maybe send JSON instead?
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Install vcn
Download CodeNotary vcn. There are releases for different platforms:
Download the latest release and then read the Usage section below.
We recommend storing vcn in your PATH - Linux example: cp vcn-v<version>-linux-amd64 /usr/local/bin/vcn
Authenticate digital objects You can use the command as a starting point. vcn authenticate <file|dir://directory|docker://dockerimage|git://gitdirectory>
Create your identity (free) You need an identity at CodeNotary to notarize objects yourself (btw, we're a data-minimum company and only ask for data that is really required)
Notarize existing digital objects Once you have an account you can start notarizing digital assets to give them an identity. vcn login vcn notarize <file|dir://directory|docker://dockerimage|git://gitdirectory>
It's easiest to download the latest version for your platform from the release page.
After having installed golang 1.12 or newer clone this repository into your working directory. Now, you can build vcn in the working directory by using make vcn and then run ./vcn. Alternatively, you can install vcn in your system simply by running make install. This will put the vcn executable into GOBIN which is accessible throughout the system.
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