---
# System prepended metadata

title: TLS cipher suite checking via openssl
tags: [HTTPS, nmap, TLS, OpenSSL]

---

# TLS cipher suite checking via openssl / nmap

###### tags: `TLS` `HTTPS` `OpenSSL` `nmap`

 
Refer to: [Transport Layer Security (TLS) Parameters](https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4)



```
openssl s_client -connect www.google.com:443 -tls1_1
```

```
openssl s_client -connect www.google.com:443 -tls1_2
```

```
openssl s_client -connect www.google.com:443 -tls1_3
```

---

### Install nmap
```
apt-get install nmap
```


```
nmap --script ssl-enum-ciphers -p 443 example.com
```
