我试过：
apt-get install netcat-openbsd
apt-get source netcat-openbsd
它抱怨道：
E: Couldn't find package netcat-openbsd
E: Unable to find a source package for netcat-openbsd
然后，我尝试：
wget ftp://ftp.debian.org/debian/pool/main/n/netcat-openbsd/netcat-openbsd_1.105.orig.tar.gz
tar -xzf netcat-openbsd_1.105.orig.tar.gz
cd netcat-openbsd-1.105
make
它抱怨道：
Makefile:6: *** missing separator. Stop.
我也在 Jessie 身上尝试了以下方法：
apt-get build-dep netcat-openbsd
apt-get source netcat-openbsd
tar -czf nc.tar.gz netcat-openbsd-1.105
cat nc.tar.gz | nc -l 80
然后在 Etch 上：
wget 192.168.1.101
tar -xzf index.html
cd netcat-openbsd-1.105
make
它抱怨道：
netcat.c:99:24: error: bsd/stdlib.h: No such file or directory
netcat.c:100:24: error: bsd/string.h: No such file or directory
make: *** [netcat.o] Error 1
你不说吗？让我来骗你：
cd /usr/include
mkdir bsd
for i in *; do ln -s ../$i bsd/$item; done
cd /root/netcat-openbsd-1.105
make
现在它说：
socks.c:41:32: error: bsd/readpassphrase.h: No such file or directory
socks.c: In function 'getproxypass':
socks.c:120: error: 'RPP_REQUIRE_TTY' undeclared (first use in this function)
socks.c:120: error: (Each undeclared identifier is reported only once
socks.c:120: error: for each function it appears in.)
socks.c:120: warning: comparison between pointer and integer
make: *** [socks.o] Error 1
是的，我确实需要在 Etch 上使用它，而且我需要 BSD 的 -d 选项。我没什么主意了，任何建议都值得赞赏！