### PostgreSQL Connection String Example

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/listeners_postgresql.html

Example command for connecting to the PostgreSQL listener using the psql client.

```text
psql postgres:1/85156504WW4NEopiQ0vePxbIqaXiEYcT:empty@<listener_address>[:port]/<database_name>
```

--------------------------------

### RDP Configuration File Example

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_rdp_custom_hostname.html

Example of the generated .rdp file content showing the full address format with a custom hostname.

```text
full address:s:10.0.234.1.jdoe.dev.main.lab:2222
username:s:<generated_username>
prompt for credentials:i:1
```

--------------------------------

### SSH Jump Host Connection Example

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_ssh_bastion_jumphost.html

A practical example of logging in as root to a target server via a jump host.

```bash
ssh -J 'john_smith%%root%%192.168.10.90@10.0.150.151' root@192.168.0.110
```

--------------------------------

### Server Configuration Conflict Example

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/servers_port_range.html

An example demonstrating how Fudo Enterprise prioritizes a specific single-port server configuration over a broader port range configuration.

```text
Server_1 - 10.0.130.100:22-24
Server_2 - 10.0.130.100:23
```

--------------------------------

### PostgreSQL Connection Command

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_postgresql.html

Template and example for connecting to a PostgreSQL database using the psql client and a one-time password.

```bash
# Template format
psql postgres://[OTP]:empty@10.31.134.220:5432/<database_name>

# Example: Connect to custom database
psql postgres://85156504qLOOtF4bWesSntHHvQoTIjED:empty@10.31.134.220:5432/myapp_db
```

--------------------------------

### CSV Server Import Format Example

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/servers_upload_csv.html

Example of a valid CSV structure for server imports, including headers and rows for both single-port and port-range configurations.

```csv
name,bind_ip,address,mask,port,port_first,port_last,protocol,legacy_crypto,rdp_hotseat,rdp_nla_enabled,tls_enabled
z1,10.0.136.1,10.0.136.10,32,2137,,,ssh,TRUE,,,
z2,10.0.136.1,10.0.136.10,32,,7312,9000,rdp,,TRUE,TRUE,TRUE
z3,10.0.136.1,10.0.136.10,32,,5000,7313,rdp,,TRUE,TRUE,TRUE
```

--------------------------------

### Build and Run SSH Container

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/network_reverse_proxy.html

Commands to build the container image and start the SSH server on a custom host port.

```bash
docker build -t external-ssh-server .
```

```bash
docker run -d -p 2222:22 --name external-ssh external-ssh-server
```

--------------------------------

### Verify Sudo Version

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/policies_sudo.html

Check the installed sudo version to ensure compatibility with the plugin.

```bash
sudo -V | head -1
```

--------------------------------

### Administrator Login Credentials

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/initiation.html

Default credentials used to access the Fudo configuration utility during initial setup.

```text
login: admin
password: proxycrypto
```

--------------------------------

### CSV Format for Multi-line Certificate Secrets

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/pv_secrets_import.html

Example showing how to handle multi-line PEM formatted certificates and private keys by enclosing them in double quotes.

```csv
name,type,login,domain,certificate,secret
"secret-1","certificate","","","-----BEGIN CERTIFICATE-----
MIID...EXAMPLE...DATA
-----END CERTIFICATE-----","-----BEGIN PRIVATE KEY-----
MIIE...EXAMPLE...DATA
-----END PRIVATE KEY-----"
```

--------------------------------

### GET /api/v2/healthcheck

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/health_check.html

Retrieves the current health status of the Fudo Enterprise system. This endpoint is accessible without authentication.

```APIDOC
## GET /api/v2/healthcheck

### Description
Returns a summary of the Fudo Enterprise health status. This endpoint is intended for external monitoring systems.

### Method
GET

### Endpoint
/api/v2/healthcheck

### Response
#### Success Response (200)
- **status** (string) - The health status of the system. Possible values: 'ok' (system working properly) or 'error' (system not working properly).

#### Response Example
{
   "status": "ok"
}
```

--------------------------------

### Verify Plugin Configuration

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/policies_sudo.html

Confirm the plugin is correctly registered by checking the sudo version output.

```bash
sudo -V
```

--------------------------------

### Connect to MySQL Database via CLI

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_mysql.html

Use this command to initiate a connection to the MySQL server with a specific host and username.

```bash
mysql -h 10.0.150.151 -u john_smith -p
```

--------------------------------

### Register Fudo Plugin

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/policies_sudo.html

Add the plugin configuration line to /etc/sudo.conf.

```text
Plugin fudo_approval fudo_approval.so api_url=https://<fudo_ip>
```

--------------------------------

### Connect via SSH Command Line

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_ssh_bastion.html

Use the specified format to route an SSH connection through the Fudo bastion host.

```bash
ssh -l <fudo-user>#<server-user>#<server-address> <fudo-address>
```

```bash
ssh -l john_smith#root#192.168.0.110 10.0.150.151
```

--------------------------------

### Display Public Key

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/servers_ssh_reverse_tunnel.html

Prints the contents of the public key to be copied into the Fudo Enterprise system configuration.

```bash
cat ~/.ssh/fudo_jumphost.pub
```

--------------------------------

### Retrieve SNMP information using snmpwalk

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/snmp.html

Commands to fetch system information via SNMPv3. Requires Net-SNMP 5.7.3 and appropriate authentication credentials.

```bash
snmpwalk -v3 -u "${SNMP_USER}" -a SHA -A "${SNMP_PASSWORD}" -x AES -X "${SNMP_PASSWORD}" -l authPriv "${FUDO_IP}" .1
```

```bash
snmpwalk -v3 -u "${SNMP_USER}" -a SHA -A "${SNMP_PASSWORD}" -x AES -X "${SNMP_PASSWORD}" -l authPriv "${FUDO_IP}" .1.3.6.1.4.1.24410
```

--------------------------------

### Initiate Connection Through Tunnel

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tunnel_to_tunneled_server.html

Commands to connect to the target server via the established tunnel.

```bash
ssh -l '<fudo_username>#<server_username>#<name_of_server_on_fudo>' localhost -p <listener_port_tunnel>
```

```bash
ssh -l 'tunnel_user#admin#RDP_Reverse_Server' localhost -p 3455
```

--------------------------------

### Target Host Login Prompt

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_telnet_5250.html

The authentication prompt displayed by the target host after the initial Telnet connection is established.

```text
> FreeBSD/amd64 (fbsd83-cerb.whl) (pts/0) login: password:

```

--------------------------------

### Generate Kerberos Keytab

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_sso.html

Use the ktpass command to generate a keytab file for SSO authentication. Ensure the principal and mapping parameters match your domain configuration.

```bash
ktpass -princ HTTP/hostname.yourdomain.local@yourdomain.local -mapuser netbios_domain_name\username -pass password -ptype KRB5_NT_PRINCIPAL -out hostname.yourdomain.local.keytab
```

```bash
ktpass -princ HTTP/mgmt241.qa.sso@QA.SSO -mapuser QA\ad-user1 -pass PaSSwOrD -ptype KRB5_NT_PRINCIPAL -out mgmt241.qa.sso.keytab
```

--------------------------------

### Establish Tunnel to Listener on User Machine

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tunnel_to_tunneled_server.html

Commands to create a local tunnel to the Fudo listener.

```bash
ssh -N -l <fudo_username> <fudo_listener_ip> -p <listener_port_tunnel> -L <listener_port_tunnel>:/tunnel/<server_id_on_fudo>
```

```bash
ssh -N -l 'tunnel_user' 10.31.135.179 -p 3455 -L 3455:tunnel/8754997675608244234
```

--------------------------------

### Open Telnet Connection

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_telnet.html

Initiate a connection to the remote host using the telnet client.

```text
telnet> open 10.0.150.151
Trying 10.0.150.151...
Connected to 10.0.150.151.
Escape character is '^]'.
```

--------------------------------

### Fix Sudo Plugin Permissions

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/troubleshooting/en/sudo_plugin.html

Correct the ownership and permissions for the approval key file to ensure the plugin functions correctly.

```bash
chown root:root /etc/fudo/approval.key && chmod 0600 /etc/fudo/approval.key
```

--------------------------------

### Generate Kerberos Keytab

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/auth_sso.html

Use this command in PowerShell or CMD to create a Kerberos ticket for Fudo Enterprise.

```shell
ktpass -princ HTTP/hostname.yourdomain.local@yourdomain.local -mapuser netbios_domain_name\username -pass password -ptype KRB5_NT_PRINCIPAL -out hostname.yourdomain.local.keytab
```

--------------------------------

### SSH Jump Host Connection Syntax

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_ssh_bastion_jumphost.html

Use this format to route SSH connections through a Fudo Jump Host.

```bash
ssh -J '<fudo-user>%%<jump-host-server-user>%%<jump-host-server-address>@<fudo-address>' <target-server-user>@<target-server-address>
```

--------------------------------

### Configure SSH User Authentication

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/network_reverse_proxy.html

Commands to access the container and set up the authorized keys for the reverse proxy user.

```bash
docker exec -it external-ssh bash
```

```bash
su - reverseproxy
echo "YOUR_PUBLIC_KEY" > =/.ssh/authorized_keys
chmod 700 =/.ssh
chmod 600 =/.ssh/authorized_keys
```

--------------------------------

### Generate RSA Keys and CSR with OpenSSL

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/system_masterkey.html

Use these commands to create a new private key and certificate signing request. The second command avoids password prompts.

```bash
openssl req -newkey rsa:4096 -keyout privkey.pem -out req.pem
openssl req -nodes -newkey rsa:4096 -keyout privkey.pem -out req.pem # Do not prompt for a password.
```

--------------------------------

### Proxmox OVF Import Command

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/initiation.html

Commands used to import OVF manifest data into Proxmox storage.

```bash
ssh 10.0.2.33
```

```bash
qm importovf <vmid> <manifest> <storage> [OPTIONS]
```

```bash
qm importovf 109 ./fudo-one-36271-release.ovf local-zfs
```

--------------------------------

### Target Host Authentication

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_telnet.html

Provide the credentials required by the target host after Fudo authentication.

```text
FreeBSD/amd64 (fbsd83-cerb.whl) (pts/0)
login:
password:
```

--------------------------------

### Establish SSH Tunnel via Terminal

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tunnel_ssh.html

Commands to create an SSH tunnel and connect to the target server without using PuTTY.

```bash
ssh -N -l <Fudo_user> <Fudo_IP> -p <Listener_port_tunnel> -L <Listener_port_tunnel>:<Server_address>:<server_port>
```

```bash
ssh -l '<Fudo_user>#<server_user>#<server_address>' localhost -p <Listener_port_tunnel>
```

```bash
ssh -N -l Tunnel_User 10.0.228.184 -p 3455 -L 3455:192.168.0.100:22
ssh -l 'Tunnel_User#admin#192.168.0.100' localhost -p 3455
```

--------------------------------

### Decrypt Master Key with OpenSSL

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/config_export_import.html

Use this command to decrypt the master key file required for the configuration import process.

```bash
openssl smime -decrypt -in path/to/masterkey.pem -inkey privkey.pem -out masterkey.tar
```

--------------------------------

### Backup and restore encryption keys using dd

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/usb_encryption_keys_backup.html

Commands for creating an image of the USB drive and writing it to a new drive on Unix-like systems.

```bash
dd if=/dev/disk2 of=fudo_pen.img bs=1m
```

```bash
dd if=fudo_pen.img of=/dev/disk2 bs=1m
```

```bash
sync
```

--------------------------------

### Verify Audit Trail via API

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/troubleshooting/en/sudo_plugin.html

Retrieve command execution logs for a specific session to diagnose why a command was denied.

```http
GET /api/v2/session/<id>/command
```

--------------------------------

### Generate Keytab with ktpass

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tds.html

Use the ktpass command to generate a keytab file for Kerberos authentication. The -crypto AES256-SHA1 parameter is required to avoid using the deprecated RC4 encryption.

```shell
ktpass -princ HTTP/hostname.yourdomain.local@yourdomain.local -mapuser netbios_domain_name\username -pass password -ptype KRB5_NT_PRINCIPAL -crypto AES256-SHA1 -out hostname.yourdomain.local.keytab
```

```shell
ktpass -princ MSSQLSvc/mgmt.qa.fudo:1433@QA.FUDO -mapuser QA\mssqlfudo -pass PaSSwOrD -pType KRB5_NT_PRINCIPAL -crypto AES256-SHA1 -out mssqlfudo.keytab
```

--------------------------------

### Connect to Server via Tunnel

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tunnel_ssh.html

Command to connect to a target server through an established Fudo SSH tunnel.

```bash
ssh -l "<Fudo_user>#<Server_user>#<Server_address>" localhost -p <Tunnel_listener_port>
```

```bash
ssh -l "Tunnel_User#admin#192.168.0.100" localhost -p 3455
```

--------------------------------

### Generate Client Certificate and Key

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/erpm_cyberark_cp.html

Use OpenSSL to generate the client certificate and key required for CyberArk authentication. Ensure the serial number matches the one configured in the CyberArk server.

```bash
openssl req -new -newkey rsa:2048 -days 365 -nodes -x509 -subj "/C=PL/ST=Mazowieckie/L=Warsaw/OU=MyApp/CN=client" -set_serial "11223344556677" -keyout client.key -out client.crt
```

--------------------------------

### Identify USB drive partitions on macOS

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/usb_encryption_keys_backup.html

Use this command to list connected drives and identify the correct identifier for the USB flash drive.

```bash
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *8.0 GB disk2
1: F649773F-1CD6-11E1-9AD2-00262DF29F0D 3.1 KB disk2s1
2: 2B163C2B-1FE5-11E1-8300-00262DF29F0D 1.0 KB disk2s2
```

--------------------------------

### Regex for rm file command

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/policies_regex.html

Matches rm command targeting specific file paths or filenames.

```regex
(^|[^a-zA-Z])rm[[:space:]]+([^[:space:]]+[[:space:]]*)?/full/path/to/a/file([[:space:]]|\;|$)
(^|[^a-zA-Z])rm[[:space:]]+.*justafilename
```

--------------------------------

### HTTP Proxy Address Formats

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/http_proxy.html

Valid formats for specifying the proxy server address and port in the Fudo Enterprise web interface.

```text
proxy.example.com:3128
http://10.0.0.15:8080
```

--------------------------------

### Register Service Principal Name for MSSQL Service

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tds.html

Use the setspn command to associate the MSSQL service with the service account in the domain.

```powershell
setspn -S <service class>/<server name>.<domain>:<port>@<domain> <service account>
```

```powershell
setspn -S MSSQLSvc/WIN2019-DC1.qa.fudo:1433@QA.FUDO mssqluser
```

--------------------------------

### Regex for rm command

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/policies_regex.html

Matches the rm command in a command-line input stream.

```regex
(^|[^a-zA-Z])rm[[:space:]]
```

--------------------------------

### Generate SSH Key Pair

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/servers_ssh_reverse_tunnel.html

Generates a 4096-bit RSA key pair on the jump host for authentication.

```bash
ssh-keygen -t rsa -b 4096 -f ~/.ssh/fudo_jumphost
```

--------------------------------

### Plaintext Password File Format

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/pv_audit.html

Each password must be placed on a separate line within the text file.

```text
password
password123
asd
tajny-sekret
root
!! <3
!! 11QQazx
!! 12Exodia
!! Angela11

```

--------------------------------

### Retrieve RDP Server Certificate via OpenSSL

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_rdp_cert.html

Use these commands to connect to a remote RDP server and retrieve its certificate details for identification.

```bash
openssl s_client -connect adres:port
```

```bash
openssl s_client -connect 10.0.133.4:3389
```

--------------------------------

### Sign the Certificate Signing Request

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/system_masterkey.html

Self-sign the generated CSR to produce a certificate file.

```bash
openssl x509 -req -in req.pem -signkey privkey.pem -out cert.pem
```

--------------------------------

### SHA-1 Hash File Format

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/pv_audit.html

Each line contains an uppercase SHA-1 hash, optionally followed by a colon and an occurrence count.

```text
0018A45C4D1DEF81644B54AB7F969B88D65:1
00D4F6E8FA6EECAD2A3AA415EEC418D38EC:2
011053FD0102E94D6AE2F8B83D76FAF94F6:1
012A7CA357541F0AC487871FEEC1891C49C:2
0136E006E24E7D152139815FB0FC6A50B15:2

```

--------------------------------

### Register Service Principal Name for Fudo Service User

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_tds.html

Register the SPN for the service user account representing the MSSQL service within Fudo Enterprise.

```powershell
setspn -S <service class>/<fudo admin panel name>:<port>@<domain> <service account> setspn -S MSSQLSvc/mgmt.qa.fudo:1433@QA.FUDO mssqlfudo
```

--------------------------------

### Dockerfile for SSH Server

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/network_reverse_proxy.html

Defines a minimal Ubuntu-based SSH server configured to support reverse tunnels.

```dockerfile
FROM ubuntu:22.04

RUN apt-get update && apt-get install -y openssh-server \
    && mkdir -p /var/run/sshd

# Create a dedicated user
RUN useradd -m reverseproxy && mkdir -p /home/reverseproxy/.ssh \
    && chown -R reverseproxy:reverseproxy /home/reverseproxy/.ssh

# Update SSH configuration to allow reverse tunnels
RUN sed -i 's/#GatewayPorts no/GatewayPorts clientspecified/' /etc/ssh/sshd_config

# (Optional) Disable password authentication for security
RUN sed -i 's/#PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config

EXPOSE 22

CMD ["/usr/sbin/sshd", "-D"]
```

--------------------------------

### Fudo Enterprise Authentication

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_telnet.html

Provide the credentials defined on the Fudo Enterprise system.

```text
FUDO Authentication.
FUDO Login: john_smith
FUDO Password:
```

--------------------------------

### Access User Portal URL

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/quickstart_postgresql.html

The address for the User Access Gateway.

```text
https://10.31.134.220
```

--------------------------------

### SSH Reverse Tunnel Command

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/servers_ssh_reverse_tunnel.html

Commands used to establish the reverse tunnel connection between the jump host and the Fudo Enterprise system.

```bash
ssh -l tunnel -p 65522 -o ExitOnForwardFailure=yes -N -f -R /tunnel/8754997675608244234:<target>:<port> 10.31.135.179
```

```bash
ssh -l tunnel -p 65522 -o ExitOnForwardFailure=yes -N -f -R /tunnel/8754997675608244234:192.168.1.100:22 10.31.135.179
```

--------------------------------

### Validate SSH Tunneling

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/network_reverse_proxy.html

Commands to verify key-based authentication and reverse port forwarding functionality.

```bash
ssh -i private_key reverseproxy@<server-ip> -p 2222 true
```

```bash
ssh -i private_key -R 0.0.0.0:8080:localhost:80 reverseproxy@<server-ip> -p 2222
```

--------------------------------

### Regex for rm -rf command

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/policies_regex.html

Matches rm command with recursive and force flags in various permutations.

```regex
(^|[^a-zA-Z])rm[[:space:]]+-([rR]f|f[rR])
```

--------------------------------

### Standard CSV Secret Import Format

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/pv_secrets_import.html

Basic structure for a CSV file containing various secret types including logins, notes, API keys, and SSH keys.

```csv
name,type,login,domain,secret,uri
login,login,admin,portal.example.com,SuperSecure123!,https://portal.example.com/login
login2,login,db_admin,db.example.com,DbPassword2024,https://db.example.com/admin
note,note,,,Quarterly meeting notes: Q4 targets discussed.,
api_key,apikey,aws_service_account,api.aws.amazon.com,AKIAIOSFODNN7EXAMPLE,https://api.aws.amazon.com
cert,certificate,,,,
ssh_key,sshkey,,,,
```

--------------------------------

### Display Extracted Serial Number

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_rdp_cert.html

The output format of the serial number extraction command.

```text
serial=41EB33A67D4F9A884AFFBD1615E11EDD
```

--------------------------------

### Extract Certificate Serial Number

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/uc_rdp_cert.html

Extract the serial number from a provided certificate block using OpenSSL.

```bash
c x509 -noout -serial

-----BEGIN CERTIFICATE-----
MIIChbdygdu656sdf65ac55mpn1PmpBK/70WFeh+xjANBgkqhkiG9w0BAQsFADAZ
MRcwFQYDVQQDEw5IT1NUMS5tay5sb2NhbDAeFw0yMzA5MTMxNzA2NTRaFw0yNDAz
MTQxNzA2NTRaMBkxFzAVcas7c6c6sh83uydtLm1rLmxvY2FsMIIBIjANBgkqhkiG
9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2ngYkoMa4dgLgGl1+G+m2UEAIH/6ttyQep5u
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-----END CERTIFICATE-----
```

--------------------------------

### API Health Check JSON Response

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/health_check.html

The API endpoint returns a JSON object indicating the system status.

```json
{
   "status": "${value}"
}
```

--------------------------------

### API Health Check Endpoint Path

Source: https://download.fudosecurity.com/documentation/fudo/latest/online_help/en/main/en/health_check.html

The endpoint path exposed after enabling the API health check option.

```text
/api/v2/healthcheck
```

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