[Home](./index.md) > [bitburner](./bitburner.md) > [Server](./bitburner.server.md) ## Server interface A server. Not all servers have all of these properties - optional properties are missing on certain servers. **Signature:** ```typescript export interface Server ``` ## Properties
| Property | Modifiers | Type | Description |
|---|---|---|---|
| [backdoorInstalled?](./bitburner.server.backdoorinstalled.md) | boolean | _(Optional)_ Flag indicating whether this server has a backdoor installed by a player | |
| [baseDifficulty?](./bitburner.server.basedifficulty.md) | number | _(Optional)_ Server's initial server security level at creation. | |
| [cpuCores](./bitburner.server.cpucores.md) | number | How many CPU cores this server has. Affects magnitude of grow and weaken ran from this server. | |
| [ftpPortOpen](./bitburner.server.ftpportopen.md) | boolean | Whether or not the FTP port is open | |
| [hackDifficulty?](./bitburner.server.hackdifficulty.md) | number | _(Optional)_ Server Security Level | |
| [hasAdminRights](./bitburner.server.hasadminrights.md) | boolean | Flag indicating whether player has admin/root access to this server | |
| [hostname](./bitburner.server.hostname.md) | string | Hostname. Must be unique | |
| [httpPortOpen](./bitburner.server.httpportopen.md) | boolean | Whether or not the HTTP Port is open | |
| [ip](./bitburner.server.ip.md) | string | IP Address. Must be unique | |
| [isConnectedTo](./bitburner.server.isconnectedto.md) | boolean | Flag indicating whether player is currently connected to this server | |
| [maxRam](./bitburner.server.maxram.md) | number | RAM (GB) available on this server | |
| [minDifficulty?](./bitburner.server.mindifficulty.md) | number | _(Optional)_ Minimum server security level that this server can be weakened to | |
| [moneyAvailable?](./bitburner.server.moneyavailable.md) | number | _(Optional)_ How much money currently resides on the server and can be hacked | |
| [moneyMax?](./bitburner.server.moneymax.md) | number | _(Optional)_ Maximum amount of money that this server can hold | |
| [numOpenPortsRequired?](./bitburner.server.numopenportsrequired.md) | number | _(Optional)_ Number of open ports required in order to gain admin/root access | |
| [openPortCount?](./bitburner.server.openportcount.md) | number | _(Optional)_ How many ports are currently opened on the server | |
| [organizationName](./bitburner.server.organizationname.md) | string | Name of company/faction/etc. that this server belongs to, not applicable to all Servers | |
| [purchasedByPlayer](./bitburner.server.purchasedbyplayer.md) | boolean | Flag indicating whether this is a server owned by the player (e.g., home, cloud servers, hacknet servers) | |
| [ramUsed](./bitburner.server.ramused.md) | number | RAM (GB) used. i.e. unavailable RAM | |
| [requiredHackingSkill?](./bitburner.server.requiredhackingskill.md) | number | _(Optional)_ Hacking level required to hack this server | |
| [serverGrowth?](./bitburner.server.servergrowth.md) | number | _(Optional)_ Growth effectiveness statistic. Higher values produce more growth with ns.grow() | |
| [smtpPortOpen](./bitburner.server.smtpportopen.md) | boolean | Whether or not the SMTP Port is open | |
| [sqlPortOpen](./bitburner.server.sqlportopen.md) | boolean | Whether or not the SQL Port is open | |
| [sshPortOpen](./bitburner.server.sshportopen.md) | boolean | Whether or not the SSH Port is open |