SRVSVC

Using rpcclient from the Samba Suite to Assess and Secure Active Directory Environments

The command-line tool rpcclient, part of the Samba suite, enables direct MS-RPC access to Windows systems from Linux. It supports enumeration of domain accounts, shares, and privileges, as well as write operations against SAM and LSA. Originally developed to test Samba's MS-RPC implementation, the utility has become a standard component in the toolkits of pentesters, auditors, and administrators working with Active Directory. From a Linux environment, rpcclient provides access to multiple named pipes including SAM, LSA, NETLOGON, SRVSVC, and SPOOLSS without requiring graphical interfaces. The article demonstrates practical usage through concrete commands against domain controllers and organizes them by common administrative and security-assessment scenarios. This approach allows security teams to perform detailed inventory and privilege analysis directly from the command line.