Some useful hacks

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ftp://ftp.dbnet.ece.ntua.gr/pub/users/george/

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• newping.c -- A TCP Ping application. This was quite popular before Nmap came to life.
• milter-dnsbl - a milter to use instead of FEATURE(dnsbl).
• graymilter with DNS based whitelists.
• Using bogusmx.rfc-ignorant.org in your sendmail.mc. See my hack
• Implement your own virus infected machines blocking list. Version 1 and Version 2.
• Another hack to stop virus infected mail clients from sending mail to (now unused for years) MCI domains.
• check_dnsbl -- A simple Nagios plugin to check for listings in various DNSBLs.
• Having fun with the MNIST database.
• Mount SMB Shares from Nautilus (GNOME).
• rshd.proxy -- A simple remote shell proxy server based on OpenBSD's rshd.
• playm3u -- Have xmms play .m3u playlists from an HTTP server.
• bitc.c. A simple tool to print out IP ranges (if you get confused by CIDR notation). IPcalc does this better now.
• Setting up a minimal KA9Q (NOS) router.
• TACACS+ and mSQL.
• Solaris 2.x imake modifications.
• spamattack: a shell script spammer.
• Netcat port to Win32.
• msqlinsert.c: mSQL insert data script.
• su-someone: su-someone modifications.
• wcp: a simple HTTP URL cp for UNIX.
• 7t -- a 7bit terminal derived from script(1). It translates ISO-8859-7 characters to Greeklish. Handy when you cannot view ISO-8859-7 for whatever the reason.
• ip2hex - IP address to hex converter.
• adnsrblcheck -- RBL checker using adns.
• bonescape.
• dbmcat.
• el2en.perl -- Greek to Greeklish Perl filter.
• en2el.perl -- Greeklish to Greek Perl filter.
• line_wrap -- a simple line wrapper.
• nngrep.
• pipe.c.
• pw.c.
• rbl.pl -- RBL checker in Perl.
• regcompi.c -- The original regompi() for the ICI language.
• whois.pl -- whois(1) in Perl.
• zu -- a su(1) clone.
• mpriki.c -- A crude wikilike written in a single C file.
• courseHelp -- A set of Perl scripts to implement something in between a blog and a wiki.
• daemonize.c -- Use this function to make your own Unix daemons.
• chpass.cgi -- Change your Unix password via HTTPS.

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adamo@dblab.ece.ntua.gr.