NP01's questions

OS: Ubuntu 12.04

I have a directory what has given write permission to group foo. Two users bar and baz are part of the group. Both can successfully write files to the directory. However, baz cannot overwrite a file (i.e. create a file with the same name) that was written by bar. I'm doing the file I/O through Python (csv module), but I don't think that has anything to do with this problem.

How do I set permissions so that bar and baz can overwrite eachother's files in the foo directory?

Thanks.

I have installed unixODBC from source and mysql-odbc connector from .dmg installer on Mac OSX Lion. This was done a while ago, and at that time I successfully installed a data source (let's call it foo). Now I am trying to add another data source (DSN). I've done this through both ODBC Manager and the command-line tool myodbc-installer given with the tar bundle of the mysql-odbc connector from the mysql website. An entry shows up in /Library/ODBC/odbc.ini, which looks like this:

[ODBC Data Sources]
bar = MySQL ODBC 5.1 Driver

[ODBC]
Trace         = 0
TraceAutoStop = 0
TraceFile     = 
TraceLibrary  = 

[myodbc]
Driver = /usr/local/lib/libmyodbc5.so
SERVER = localhost
PORT   = 3306

[bar]
Driver      = /usr/local/lib/libmyodbc5.so
Description = 
DATABASE    = bar

However, isql fails to find it:

anitya:Preferences neil$ isql bar bar bar -v
[IM002][unixODBC][Driver Manager]Data source name not found, and no default driver specified
[ISQL]ERROR: Could not SQLConnect

Weird thing is, the old DSN foo, which is not to be seen in /Library/ODBC/odbc.ini or /etc/odbc.ini, works fine:

anitya:Preferences neil$ isql foo foo foo
+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+
SQL> 

I'm miffed about where the DSN entries need to be entered on OSX Lion to be found by isql. Thanks in advance for your help!

I have webserver1 behind a router currently serving all http traffic to mydomain.com. I just added webserver2, and want to redirect mydomain.com/server2 traffic to that box. To the user, the redirect should be unnoticed (i.e. the URL should just be mydomain.com/server2, and the redirection happens behind the scenes). How do I set this up in the apache configuration of webserver1 (I'm assuming webserver2's config needs to do nothing special)?

I've tried the advice given here, using mod_rewrite, but it didn't seem to do the trick:

RewriteEngine on
RewriteCond %{REQUEST_URI} ^/server2/
RewriteRule ^/$ http://192.168.1.102/ [P,L]

In case it is relevant, webserver1 is hosting a django app using mod_wsgi, with a few other apps that get redirected away. Here is the virtualhost conf:

<VirtualHost *:80>
    ServerAdmin [email protected]
    ServerName  www.mydomain.com
    ServerAlias 127.0.0.1

    RewriteEngine on
        RewriteCond %{REQUEST_URI} ^/server2/
        RewriteRule ^/$ http://192.168.1.102 [P,L]

    DocumentRoot /var/www
    <Directory />
        Options FollowSymLinks
        AllowOverride None
    </Directory>
    <Directory /var/www/>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride None
        Order allow,deny
        allow from all
    </Directory>

    ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
    <Directory "/usr/lib/cgi-bin">
        AllowOverride None
        Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
        Order allow,deny
        Allow from all
    </Directory>

    ErrorLog /var/log/apache2/error.log

    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn

    CustomLog /var/log/apache2/access.log combined

    Alias /doc/ "/usr/share/doc/"
    <Directory "/usr/share/doc/">
        Options Indexes MultiViews FollowSymLinks
        AllowOverride None
        Order deny,allow
        Deny from all
        Allow from 127.0.0.0/255.0.0.0 ::1/128
    </Directory>

    <Directory /var/www/mydomain>
    Order allow,deny
    Allow from all
    </Directory>

    ...

    WSGIDaemonProcess mydomain user=user group=user threads=25
    WSGIProcessGroup mydomain

    WSGIScriptAlias / /home/user/mydomain/apache/django.wsgi
    Alias /phpmyadmin /usr/share/phpmyadmin/

</VirtualHost>

Thanks in advance.