Removing telnetd from Busybox

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mwchang
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Joined: 26 Mar 2013
Posts: 1887
Location: Hung Hom, Hong Kong

PostPosted: Mon Feb 12, 2024 15:25    Post subject: Removing telnetd from Busybox Reply with quote
Is it more secured to remove telnetd from Busybox? Dropbear basically can do the job of telnetd. There is no reason to make it available at all.

Also, with telnetd bundled/coupled with Busybox, users canNOT isolate it.

Note: I believe telnetd is the telnet server, not the telnet client. Smile

Code:
# which telnet
/usr/bin/telnet
#
# which telnetd
/usr/sbin/telnetd
#
# ls -l /usr/sbin/telnetd
lrwxrwxrwx    1 root     root            17 Jan  2 06:23 /usr/sbin/telnetd -> ../../bin/busybox
#
# ls -l /usr/bin/telnet
lrwxrwxrwx    1 root     root            17 Jan  2 06:23 /usr/bin/telnet -> ../../bin/busybox
#
# nvram show | grep telnet
telnet_wanport=23
telnetd_enable=0
remote_mgt_telnet=0
mactelnetd_enable=0
limit_telnet=0

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