SSL
Förkortningar
- SSL - Secure Sockets Layer
- CSR - Certificate Signing Request
- TLS - Transport Layer Security
- SNI - Server Name Indication
- ACME - Automatic Certificate Management Environment
- CA - certificate authority
- IETF - Internet Engineering Task Force
- DV - Domain Validation
- EV - Extended Validation
- OV - Organization Validation
- JWS - JSON Web Signature
- JWK - JSON Web Key
- SCT - Signed Certificate Timestamp
- OOB - out of band
- SSRF - Server-Side Request Forgery
- IDNA - Internationalized Domain Names in Applications
- URI - Uniform Resource Identifier
- RFC
- ISRG - Internet Security Research Group
- PKI - Public key infrastructure
- HSTS - HTTP Strict Transport Security
Typer
- DV
- OV
- EV
Publik nyckel
Filändelse för publik nyckel
.crt
Mapp att spara publik nyckel i
/etc/ssl/certs/
Privat nyckel
Filändelse för privat nyckel
.key
Ändra rättigheter för privat nyckel
chown root:root example.com.key
chmod 0600 example.com.key
Mapp att spara privat nyckel i
/etc/ssl/private/
Protokoll
https://
Port
443
RFC för SSL
6101
RFC för TLS
5246
Visa nuvarande protokoll med Javascript
document.location.protocol
Testa här
Utfärdare av säkra certifiktat (SSL) som används för att kryptera trafik mellan server och klient på webben
Företag bakom DigiCert
<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
<meta http-equiv="Content-Security-Policy" content="block-all-mixed-content">
Tillåt mixat innehåll i Firefox Firefox
about:config security.mixed_content.block_active_contentHeartbleed
The Heartbleed Bug is a serious vulnerability in the popular OpenSSL cryptographic software library. This weakness allows stealing the information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. SSL/TLS provides communication security and privacy over the Internet for applications such as web, email, instant messaging (IM) and some virtual private networks (VPNs).
The Heartbleed bug allows anyone on the Internet to read the memory of the systems protected by the vulnerable versions of the OpenSSL software. This compromises the secret keys used to identify the service providers and to encrypt the traffic, the names and passwords of the users and the actual content. This allows attackers to eavesdrop on communications, steal data directly from the services and users and to impersonate services and users.
Funktioner i PHP
openssl_encrypt()openssl_decrypt()
Variabler i PHP
$_SERVER['HTTPS']$_SERVER['REDIRECT_HTTPS']
Inställningar för Crontab
30 2 * * * /usr/bin/certbot renew --noninteractive --renew-hook "/bin/systemctl reload nginx; /bin/systemctl restart nginx" >> /var/log/le-renew.log
