AIX 5.2
a. dspcat -g /usr/lib/nls/msg/en_US/telnetd.cat > /tmp/telnetd.msg
b. Modify /tmp/telnetd.msg by removing "telnet (%s)"
c. Save your changes
d. gencat /tmp/telnetd.cat /tmp/telnetd.msg
e. cp /usr/lib/nls/msg/en_US/telnetd.cat
/usr/lib/nls/msg/en_US/telnetd.cat.YYYYMMDD
f. cp /tmp/telnetd.cat /usr/lib/nls/msg/en_US/telnetd.cat
g. Compare file permissions with the backed up file and adjust
as needed.
h. Test by doing a telnet localhost.  The "telnet (hostname)"should be missing.

AIX 5.3
root@aixh70:/usr/lib/nls/msg/en_US>echo $NLSPATH
/usr/lib/nls/msg/%L/%N:/usr/lib/nls/msg/%L/%N.cat
root@aixh70:/usr/lib/nls/msg/en_US>dspcat -g telnetd.cat  >/tmp/telnetd.msg.backup
root@aixh70:/usr/lib/nls/msg/en_US>cp /tmp/telnetd.msg.backup /tmp/telnetd.msg
root@aixh70:/usr/lib/nls/msg/en_US>vi /tmp/telnetd.msg  #아래와 같이 telnet (%s)만 제거해준다.
1       "\r\n\
\r\n\
\r\n"
2       "\r\n\
%s here\r\n"
root@aixh70:/usr/lib/nls/msg/en_US>cp telnetd.cat /tmp/telnetd.cat.20091129  #백업
root@aixh70:/usr/lib/nls/msg/en_US>gencat /tmp/telnetd.cat /tmp/telnetd.msg
root@aixh70:/usr/lib/nls/msg/en_US>ls -lrt telnetd.cat
-rw-r--r--   1 bin      bin            1058 Jul 13 2004  telnetd.cat
root@aixh70:/usr/lib/nls/msg/en_US>mv telnetd.cat telnetd.cat.org #백업
root@aixh70:/usr/lib/nls/msg/en_US>mv /tmp/telnetd.cat telnetd.cat
root@aixh70:/usr/lib/nls/msg/en_US>chown bin.bin telnetd.cat
root@aixh70:/usr/lib/nls/msg/en_US>chmod 644 telnetd.cat
root@aixh70:/usr/lib/nls/msg/en_US>ls -l telnetd.cat
-rw-r--r--   1 bin      bin            1060 Jul 06 15:36 telnetd.cat