Update cheatsheets

certutil

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# certutil
+
+> Manage keys and certificates in both NSS databases and other NSS tokens.
+> More information: <https://manned.org/certutil>.
+
+- Create a [N]ew certificate database in the current [d]irectory:
+
+`certutil -N -d .`
+
+- List all certificates in a database:
+
+`certutil -L -d .`
+
+- List all private [K]eys in a database specifying the password [f]ile:
+
+`certutil -K -d . -f {{path/to/password_file.txt}}`
+
+- [A]dd the signed certificate to the requesters database specifying a [n]ickname, [t]rust attributes and an [i]nput CRT file:
+
+`certutil -A -n "{{server_certificate}}" -t ",," -i {{path/to/file.crt}} -d .`
+
+- Add subject alternative names to a given [c]ertificate with a specific key size ([g]):
+
+`certutil -S -f {{path/to/password_file.txt}} -d . -t ",," -c "{{server_certificate}}" -n "{{server_name}}" -g {{2048}} -s "CN={{common_name}},O={{organization}}"`