This procedure will show you how to create Subject Alternate Name (SAN), or in other words, a certificate request with multiple Common Name (CN) DNS aliases. It order to do so, we need to create a CSR request template as shown below: 1. Create the certificate request template as followed:
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no
C = Country Letter Code
ST = State or Province
L = City
O = Company Name Inc.
OU = Division Name Inc.
CN = CommonName.Domain.TLD
keyUsage = keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names
DNS.1 = AlternateHostName1.Domain.TLD
DNS.2 = AlternateHostName2.Domain.TLD
Note: Edit all fields… Read More »
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Since the latest major version release of CentOS/RHEL 7, it seem that we wen’t a bit crazy about the whole systemd thing… Seriously, having a network interface named “eno16780032” isn’t that great! Fortunately, there is a a way of getting back the old naming convention by following these steps : 1. Edit the Grub configuration… Read More »
If you tried to upgrade your Juniper SSG ScreenOS version lately using the WebUI and got the message “Failed to upgrade” and the console output showed : ********Invalid image!!! ********Bogus image – not authenticated!!! Fips check failed (This would output the same if you tried to manually upgrade from the console). This could indicate two… Read More »
Having the following error while trying to open the console of your guest VMs? Unable to connect to the MKS: Login (username / password) incorrect This is happening because the communication between your client computer and your vSphere host isn’t working properly. The main cause for this would be that the ports required for the… Read More »
Recently, when I try to build an open source project, I meet the following compile error:
fatal error: 'libelf.h' file not found
1 error generated.
The solution is installing elfutils-libelf-devel package:
sudo yum install elfutils-libelf-devel
sudo dnf install elfutils-libelf-devel
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