Debian’s repositories contain many commonly used Perl packages, but when you
need to install a package from CPAN that has not been
“debianized” yet, the only option is to use the traditional “make install”
approach. This is less than ideal, as it creates files in the system that are
outside the package manager’s control.
dh-make-perl resolves this problem
by downloading packages from CPAN and creating a “.deb” file on-the-fly. If
your system lacks Internet access, you can download the packages manually
and run dh-make-perl to create the “.deb” file from a locally unpacked CPAN
Keywords: Daily Debian, dh-make-perl, deb, cpan, perl
The Linux resolver always tries the name servers listed in your
“/etc/resolv.conf” file sequentially. As a result, a problem in the first
name server on the list will slow down your connections dramatically.
One possible solution to this problem is
pdnsd, a “Proxy DNS server” designed to
cope with unreachable or intermittent DNS servers (a very common situation
with dialup stations).
pdnsd employs “permanent caching”, and saves the contents of its queries to
disk, allowing it to process DNS queries even when the upstream DNS server
is down. Furthermore, it can be configured to “ping” your name servers and
remove them from the list if they become temporarily unreachable. You
can also configure pdnsd to use your “/etc/hosts” file as a source of
information, and it will respond to “A” (name to IP) and “IN PTR” (IP to
name) queries using the information found there.
Keywords: Daily Debian, pdnsd, bind, named, DNS, nameserver, resolv.conf
The scenario may sound horribly familiar to some: One day, your “apt-gets”
suddenly stops working, and your Linux workstations cannot access the
Internet anymore. A telnet to any known website, port 80, results in
“Connection Refused”. You call your “IT” department, and they inform you
that now the company policy requires everybody to use a proxy. “But why?”,
you dare ask. The reply comes with the resolution and certainty of those
without knowledge: “It’s company policy”. You kindly request the IP and port
of the proxy server and configure all stations to use it, just to get a “403
forbidden” or “401 Unauthorized” on every access. What is going on here?
Congratulations. You’re now a victim of
NTLM, an authentication
scheme for proxies created by Microsoft, which “improves” (in the Microsoft
sense of the word) upon the old “Basic” authentication, while retaining
absolutely no compatibility with non-Microsoft products.
Fortunately, a charitable soul created
ntlmaps, a proxy which authenticates
into your upstream NTLM proxy and provides a standard proxy interface to your
non-Microsoft clients. ntlmaps works extremely well, and can even re-write
headers on-the-fly. ntlmaps is an absolute necessity if you need authenticate
to NTLM proxies to access the Internet.
Keywords: Daily Debian, ntlmaps, proxy, web proxy, NTLM
There’s nothing more frustrating than losing data. Any kind of data. To avoid
that, the solution is to backup everything, and these days CDs and DVDs are
a popular choice of backup media. But what do you do when your CD or DVD
develops an I/O error? In some cases, only one file is lost (or part of it),
but depending on where the problem happens in the media, the entire file
structure may be rendered useless.
dares scans a CD or DVD sector by sector
trying to find files. Instead of relying on the filesystem to do so, it uses
the “Magic Library” to identify files, making it possible to recover files
that would be lost forever otherwise.
There are two packages providing dares. The first one is just called
“dares” and uses a Curses based text interface. The second is called
dares-qt and provides a Qt-based
version of the program.
Keywords: Daily Debian, dares, I/O error, data-recovery