Landscape self sign certificate Ubuntu 18.04LTS

When i run this $ /usr/lib/ssl/misc/ -signreq

I get this error: Unknown arg "-signreq" Use -help for help.

From link

I’m following the steps in order on a ubuntu 18.04lts server. Any idea what is wrong?

UPDATE Docs are wrong for “Signging your certificate”. Change:

$   /usr/lib/ssl/misc/ -signreq  # TO  $   /usr/lib/ssl/misc/ -sign  

How do you create a self signed certificate ubnuntu 18.04LTS? I tried following the docs at and it does not work. I can’t sign for more than 365 days even though i changed days in the to 10950. When registering a new client i still get

certificate subject name (ctrl-server1) does not match target host name '' even though i re-generated another certificate after changing apache site

Verify S/MIME signature with no certificate included

Let’s sign a file with

 $   openssl smime -sign -in file -out file.sign -outform DER -inkey private.pem -signer certificate.pem -nocerts 

With the option -no certs no certificate is included in file.sign.

Now if you try to verify file.sign:

$   openssl smime -verify -in file.sign -inform DER -content file -noverify certificate.pem  

You get

Verification failure 139909488150168:error:2107C080:PKCS7 routines:PKCS7_get0_signers:signer certificate not found:pk7_smime.c:466: 

The example works, if you sign without -nocerts of course.

But is there are way to tell openssl verify how to find the certificate ?

iOS and Burp Suite Certificate – Impossible to trust certificate?

I have the same question as this guy and it seems like trusting SSL certificates on the iPhone does nothing — it’s essentially broken, from what I can tell.

I have proxied my WiFi traffic to my BurpSuite instance in my VM (which is bridged), and I can see the traffic initiated in BurpSuite, but it doesn’t connect from my phone. It just says:

Safari cannot open the page because the network connection was lost.

Just to confirm, I have downloaded the certificate by navigating to https://burp from my iPhone, clicked on the “CA Certificate” button in the top right corner, and then trusted the certificate by going through the following steps:

  1. Navigated to Settings -> General -> Profile -> PortSwigger CA -> Installed this.
  2. Navigated to Settings -> General -> About -> Certificate Trust Settings -> Enabled the Port Swigger CA certificate.
  3. Rebooted phone.

Nothing works. Still can’t browse to because of the same “connection lost” error.

Does anyone actually know how to get this to work properly?

Using Cloudflare origin certificate in google app engine

A relevant question was posted in 2016 (

The cloudflare documentation is dated Apr 2019 ( It says

enter image description here

but it is difficult to assert if this particular section has been reviewed recently.

I am not sure if the situation has changed since.

I decided to give it a go. Here is the screen shot of the Google App Engine interface:

enter image description here

I downloaded the origin cert and the private key. I have uploaded the cert. And then convert the key by running

openssl rsa -in priv_key.pem -out priv_key.rsa.pem 

When I hit upload I got the following error:

The certificate data is invalid. Please ensure that the private key and public certificate match

I am pretty sure they are the matching since I have just downloaded them minutes ago.

My questions are:

1) Can GAE accept Cloudflare origin certificate?

2) Did I miss any step when I prepare the origin cert for GAE?

Event ID 15021 HttpEvent on a wildcard SSL certificate but only get the error on a couple sites

I have IIS running on Windows Server 2012 R2. I have a wildcard SSL certificate on 14 subdomains. I’m seeing a lot of errors in the Event Viewer.

Event ID: 15021 Source: HttpEvent

An error occurred while using SSL configuration for endpoint The error status code is contained within the returned data.

However, I’m only getting this error on 2 of the sites, the other 12 are not logging this error. The 2 sites creating this error load up fine in a web browser. I’ve checked the binding in IIS and they both have the wildcard SSL selected.

If there is a certificate problem, I would expect this error coming from all 14 sites, not just 2 of them.

Though those 2 sites load fine in a browser, I’m not comfortable seeing thousands of these errors on our two biggest sites.