System information

CHAPTER

Troubleshooting Security Implementations 24-471

Troubleshooting Security

Implementations

This chapter outlines troubleshooting information relating to security implementations. The ﬁrst part

of the chapter describes problems commonly encountered in Terminal Access Controller Access

Control System (TACACS+) and XTACACS security implementations. The section “Recovering a

Lost Password” describes password-recovery procedures for common Cisco router platforms.

Troubleshooting TACACS+ and XTACACS

This section presents troubleshooting information for TACACS+ and XTACACS security

implementations. It describes speciﬁc TACACS+ and XTACACS security implementation issues,

the problems that are likely to cause each symptom, and the solutions to those problems.

The sections on troubleshooting TACACS+ include the following:

• TACACS+: Errors Unarchiving Source File

• TACACS+: Cannot Compile Daemon

• TACACS+: Daemon Not Up and Running

• TACACS+: Daemon Does Not Run

• TACACS+: Users Cannot Log In Using TACACS+

The sections on troubleshooting XTACACS include the following:

• XTACACS: Errors Decompressing File

• XTACACS: Cannot Compile Daemon

• XTACACS: Daemon Not Up and Running

• XTACACS: Slow Response from Daemon

• XTACACS: Users Cannot Connect Using XTACACS

If you want detailed information about conﬁguring and using TACACS+ and XTACACS, refer to

the Cisco IOS Conﬁguration Fundamentals Conﬁguration Guide and Conﬁguration Fundamentals

Command Reference. In addition, for TACACS+, download the TACACS+ User Guide from the

TACACS+ Software Images page on Cisco Connection Online (CCO). For more information about

XTACACS, refer to the README ﬁle that you downloaded with your XTACACS source ﬁle.

TACACS+: Errors Unarchiving Source File

Symptom: Errors are generated when the TACACS+ archive ﬁle (tac_plus.2.1.tar) is being

unarchived.