VSFTPD v2.3.4 Backdoor CMD Execution :
 use exploit/unix/ftp/vsftpd_234_backdoor

PHP CGI Argument Injection :
 use exploit/multi/http/php_cgi_arg_injection 
 
Java RMI Server Insecure Default Configuration Java Code Execution :
 use exploit/multi/misc/java_rmi_server 
 
UnrealIRCD 3.2.8.1 Backdoor Command Execution : 
 use exploit/unix/irc/unreal_ircd_3281_backdoor 
 
Distributed Ruby Send instance_eval/syscall Code Execution :
 use exploit/linux/misc/drb_remote_codeexec 
 
Samba "username map script" Command Execution :
 use exploit/multi/samba/usermap_script
 
DistCC Daemon Command Execution :
 use exploit/unix/misc/distcc_exec