#mod_perl

[nixcraft]

Here is how to install Perl in Fedora Linux, including the latest version of mod_perl with Apache (HTTPD) to run dynamic web pages/handlers in Perl.

-> How to install Perl in Fedora Linux

[bricas001]

Multiple mod_perl apps under a single code base

… specifically I’m trying to run multiple copies of a Catalyst application under the same Apache server with different config files.

Does anyone have any strategies for running the same set of perl modules against an arbitrary external file?

[marinesea-blog]

ITmedia エンタープライズ：LAMP vs. LAMP──mod_perlとmod_phpのパフォーマンス比較

[weeb-aargh-blog]

Net::SSH::Perl running under mod_perl2

Earlier I posted a problem noting that i couldn't getNet::SSH::Perl to work in mod_perl2. It turns out that it is possible. Basically there is a problem with STDIN and STDOUT in mod_perl when using sub-processes that expect these to be normal. (explained better than I can here: http://perl.apache.org/docs/2.0/api/Apache2/SubProcess.html)

The solution is to redirect STDIN and STDOUT to /dev/null for the command. Adapting the code on the above page (because it uses features unavailable in mod_perl2 and unnecessary in current version of perl) simply replace:

my ($out, $err, $exit) = $ssh->cmd($cmd);

with

my ($out, $err, $exit);         warn "executing: $cmd"; {      my $nullfh;      open $nullfh, '>/dev/null' or die "Can't open /dev/null: $!";      local *STDOUT = $nullfh;      ($out, $err, $exit) = $ssh->cmd($cmd);      close $nullfh; }

[weeb-aargh-blog]

Net::SSH::Perl running as a user without a home directory

So I have been doing a bit of coding using Net:SSH::Perl and have come up against a problem. When connecting to a new host, I get this error:

[error] mkdir /nonexistent: Permission denied at /usr/local/lib/perl5/site_perl/5.12.4/Net/SSH/Perl/Util/Hosts.pm line 92\n

Now the application is running as the www user (FreeBSD 8.1) and /nonexistent is set to be the home directory for that user. Looking at that line it is trying to create a known_hosts file in there, which is failing as it is an invalid directory and the www user does not have permissions to create it.

I didn't want to change the home directory of this user, So eventually found the solution was to add this command:

$ssh->config->set('user_known_hosts', "$base/known_hosts");

(where $base is a variable containing the path to a writeable directory)

Of course now I discover that Net::SSH::Perl doesn't seem to work with mod_perl anyway, so have to rewrite everything anyway.

[mediumsizetex]

Any sufficiently advanced science is indistiguishable from friendship.

[ouest-blog-blog]