OpenSSL CSR with SAN: Difference between revisions

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(Created page with "<pre> openssl req -out sslcert.csr -newkey rsa:2048 -nodes -keyout private.key -config /opt/ssl.conf </pre> <pre> vi /opt/ssl.conf </pre> <pre> [ req ] default_bits =...")
 
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= Create Request =
<pre>
<pre>
openssl req -out sslcert.csr -newkey rsa:2048 -nodes -keyout private.key -config /opt/ssl.conf
openssl req -new -newkey rsa:4096 -nodes -config ssl.conf -subj "/C=AU/ST=Queensland/L=Ipswich/O=Home/CN=email.testforme.com" -outform pem -out sslrequest.csr -keyout private.key
</pre>
</pre>


= Verify Request File =
<pre>
openssl req -in sslrequest.csr -noout -text -verify
</pre>
= Configuration File =
<pre>
<pre>
vi /opt/ssl.conf
vi /opt/ssl.conf
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<pre>
<pre>
[ req ]
[ req ]
default_bits      = 2048
default_bits      = 4096
default_keyfile    = privkey.pem
default_md        = sha256
distinguished_name = req_distinguished_name
distinguished_name = req_distinguished_name
req_extensions    = req_ext
req_extensions    = req_ext
prompt            = no
attributes        = req_attributes


[ req_distinguished_name ]
[ req_distinguished_name ]
countryName         = AU
countryName_default         = AU
stateOrProvinceName = Queensland
stateOrProvinceName_default = Queensland
localityName         = Ipswich
localityName_default         = Ipswich
organizationName    = Organization Name (eg, company)
commonName_default           = email.testforme.com
commonName           = email.testforme.com
emailAddress_default        = postmaster@testforme.com
organizationName_default    = No Org
organizationalUnitName_default = No Unit
 
[ req_attributes ]
# We don't want these, but the section must exist
 


[ req_ext ]
[ req_ext ]
subjectAltName = @alt_names
keyUsage        = nonRepudiation, digitalSignature, keyEncipherment
extendedKeyUsage = clientAuth,serverAuth
subjectAltName   = @alt_names


[alt_names]
[ alt_names ]
DNS.1 = mail.testforme.com
DNS.1 = email.testforme.com
DNS.2 = mail.klaverstyn.com
DNS.2 = mail.testforme.com
DNS.3 = mail.klaverstyn.com.au
DNS.3 = autodiscover.testforme.com
DNS.4 = home.klaverstyn.com.au
DNS.4 = mail.klaverstyn.com
DNS.5 = mail.homne.klaverstyn.com.au
DNS.5 = autodiscover.klaverstyn.com
DNS.6 = mail.klaverstyn.com.au
DNS.7 = autodiscover.klaverstyn.com.au
DNS.8 = home.klaverstyn.com.au
DNS.9 = mail.home.klaverstyn.com.au
</pre>
</pre>


[[Category : Linux]]
[[Category : Linux]]

Revision as of 12:49, 7 May 2020

Create Request

openssl req -new -newkey rsa:4096 -nodes -config ssl.conf -subj "/C=AU/ST=Queensland/L=Ipswich/O=Home/CN=email.testforme.com" -outform pem -out sslrequest.csr -keyout private.key


Verify Request File

openssl req -in sslrequest.csr -noout -text -verify


Configuration File

vi /opt/ssl.conf
[ req ]
default_bits       = 4096
default_keyfile    = privkey.pem
default_md         = sha256
distinguished_name = req_distinguished_name
req_extensions     = req_ext
attributes         = req_attributes

[ req_distinguished_name ]
countryName_default          = AU
stateOrProvinceName_default  = Queensland
localityName_default         = Ipswich
commonName_default           = email.testforme.com
emailAddress_default         = postmaster@testforme.com
organizationName_default     = No Org
organizationalUnitName_default = No Unit

[ req_attributes ]
# We don't want these, but the section must exist


[ req_ext ]
keyUsage         = nonRepudiation, digitalSignature, keyEncipherment
extendedKeyUsage = clientAuth,serverAuth
subjectAltName   = @alt_names

[ alt_names ]
DNS.1 = email.testforme.com
DNS.2 = mail.testforme.com
DNS.3 = autodiscover.testforme.com
DNS.4 = mail.klaverstyn.com
DNS.5 = autodiscover.klaverstyn.com
DNS.6 = mail.klaverstyn.com.au
DNS.7 = autodiscover.klaverstyn.com.au
DNS.8 = home.klaverstyn.com.au
DNS.9 = mail.home.klaverstyn.com.au