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Generate self signed certificate for localhost

Hungry Hare answered on June 22, 2021 Popularity 9/10 Helpfulness 4/10

answer Generate self signed certificate for localhost

related use localhost for self signed cert

Generate self signed certificate for localhost

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openssl req -x509 -out localhost.crt -keyout localhost.key \
-newkey rsa:2048 -nodes -sha256 \
-subj '/CN=localhost' -extensions EXT -config <( \
printf "[dn]\nCN=localhost\n[req]\ndistinguished_name = dn\n[EXT]\nsubjectAltName=DNS:localhost\nkeyUsage=digitalSignature\nextendedKeyUsage=serverAuth")

Popularity 9/10 Helpfulness 4/10 Language shell

Source: aboutssl.org

Tags: certificate generate localhost self-signed shell

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Contributed on May 05 2022

Hungry Hare

0 Answers Avg Quality 2/10

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use localhost for self signed cert

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######################
# Become a Certificate Authority
######################

# Generate private key
openssl genrsa -des3 -out myCA.key 2048
# Generate root certificate
openssl req -x509 -new -nodes -key myCA.key -sha256 -days 825 -out myCA.pem

######################
# Create CA-signed certs
######################

NAME=mydomain.com # Use your own domain name
# Generate a private key
openssl genrsa -out $NAME.key 2048
# Create a certificate-signing request
openssl req -new -key $NAME.key -out $NAME.csr
# Create a config file for the extensions
>$NAME.ext cat <<-EOF
authorityKeyIdentifier=keyid,issuer
basicConstraints=CA:FALSE
keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = $NAME # Be sure to include the domain name here because Common Name is not so commonly honoured by itself
DNS.2 = bar.$NAME # Optionally, add additional domains (I've added a subdomain here)
IP.1 = 192.168.0.13 # Optionally, add an IP address (if the connection which you have planned requires it)
EOF
# Create the signed certificate
openssl x509 -req -in $NAME.csr -CA myCA.pem -CAkey myCA.key -CAcreateserial \
-out $NAME.crt -days 825 -sha256 -extfile $NAME.ext

Popularity 8/10 Helpfulness 2/10 Language shell

Source: stackoverflow.com

Tags: cert localhost

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Contributed on Jun 22 2021

Sparkling Skunk

0 Answers Avg Quality 2/10

Generate self signed certificate for localhost

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Generate self signed certificate for localhost

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use localhost for self signed cert

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