Anonymous FTP can be set up under Solaris by performing the following steps. 
Remember, however, that Anonymous FTP opens up your system to allow anonymous
users to perform file transfers. In general, Anonymous FTP should be considered
a security concern and should be enabled only if it is absolutely necessary. 
Also, to allow FTP to work properly in a chroot environment, make sure that 
the file system containing the FTP home directory is not mounted as nosuid.

1. Create the FTP home directory structure: 
mkdir /export/ftp/pub
mkdir /export/ftp/bin
mkdir /export/ftp/dev
mkdir /export/ftp/etc
mkdir /export/ftp/usr
mkdir /export/ftp/usr/lib

2. Add the ls command to the FTP bin directory: 
cp /usr/bin/ls /export/ftp/bin
chmod 111 /export/ftp/bin/ls

3. Copy the necessary libraries into the FTP directory structure: 
cp /usr/lib/ld.so* /export/ftp/usr/lib
cp /usr/lib/libc.so.1 /usr/lib/libdl.so.1 /export/ftp/usr/lib
cp /usr/lib/libintl.so.1 usr/lib/libw.so.1 /export/ftp/usr/lib
cp /etc/passwd /etc/group /etc/netconfig /export/ftp/etc

4. Copy the necessary files into the FTP directory structure to resolve NIS names: 
cp /usr/lib/nss*.so.1 /export/ftp/usr/lib
cp /usr/lib/libnsl.so.1 /export/ftp/usr/lib
cp /usr/lib/straddr.so /export/ftp/usr/lib
cp /etc/nsswitch.conf /export/ftp/etc

5. Set the permissions for the /export/ftp/usr/lib and /export/ftp/etc directories: 
chmod 555 /export/ftp/usr/lib/*
chmod 444 /export/ftp/etc/*

6. Set the permissions of all the created directories: 
chmod 555 /export/ftp/usr/lib
chmod 555 /export/ftp/usr
chmod 555 /export/ftp/bin
chmod 555 /export/ftp/dev
chmod 555 /export/ftp/etc
chmod 755 /export/ftp/pub
chmod 555 /export/ftp

7. Add the following line to the /etc/passwd file: 
ftp:x:30000:30000:Anonymous FTP:/export/ftp:/bin/false

8. Add the following line to the /etc/shadow file: 
ftp:NP:6445::::

9. Make sure that everything is owned by root and not by FTP: 
chown -R root /export/ftp