Subversion userid case-sensitivie validation for Active Directory

Subversion's user authentication is case sensitive for both userid and password.  While this is the standard in the *nix world, unfortunately Windows users tend to put their userid in whatever case they feel like.  I couldn't find a configuration option for this in Subversion, also no luck from the net...  So I went into the source code and did a quick & dirty workaround since all our users are validating their accounts against Windows Active Directory which is case-insensitive for their userid.

replace strcmp with strcasecmp in the following two lines.  This is for Subverison 1.4.0.  Just search for strcmp in the same file for newer version.

./subversion/libsvn_repos/authz.c

line 156:       else if (strcasecmp(user, group_user) == 0)
line 189:       else if (strcasecmp(name, b->user) != 0)

compiling tesseract for Linux 32-bit

compiling tesseract for Linux 32-bit under a 64-bit Linux environment wasn't the most straight forward thing... even with -m32 flag set for gcc flags,it failed during linking:

ld -r -o libtesseract_full.o tesseractfull.o \
    libtesseract_main.a \
    ../textord/libtesseract_textord.a \
    ../pageseg/libtesseract_pageseg.a \
    ../wordrec/libtesseract_wordrec.a \
    ../classify/libtesseract_classify.a \
    ../dict/libtesseract_dict.a \
    ../viewer/libtesseract_viewer.a \
    ../image/libtesseract_image.a \
    ../cutil/libtesseract_cutil.a \
    ../ccstruct/libtesseract_ccstruct.a \
    ../ccutil/libtesseract_ccutil.a
ld: Relocatable linking with relocations from format elf32-i386 (tesseractfull.o) to format elf64-x86-64 (libtesseract_full.o) is not supported
make[3]: *** [libtesseract_full.o] Error 1

setting -m32 for LDFLAGS didn't do the trick, ld likes this flag better "-melf_i386", but setting this in LDFLAGS would cause tesseract fail when running configure
I had to manually go under ccmain do the following with -melf_i386:
tesseract-2.03]$ cd ccmain
ccmain]$ ld -r -o libtesseract_full.o tesseractfull.o \
     libtesseract_main.a \
     ../textord/libtesseract_textord.a \
     ../pageseg/libtesseract_pageseg.a \
     ../wordrec/libtesseract_wordrec.a \
     ../classify/libtesseract_classify.a \
     ../dict/libtesseract_dict.a \
     ../viewer/libtesseract_viewer.a \
     ../image/libtesseract_image.a \
     ../cutil/libtesseract_cutil.a \
     ../ccstruct/libtesseract_ccstruct.a \
     ../ccutil/libtesseract_ccutil.a -melf_i386

after that go back one level up and run make ; make install again.

cd ..

make

Hudson config for SVN credentials

I've been integrating Hudson into our build process, interesting enough that I couldn't find where to set the subversion credentials from Hudson's config menus.  Found the solution from web, simply go to URL to config:
http://${HUDSON_HOST:PORT}/scm/SubversionSCM/enterCredential 

the file on the server is under:
${HOME}/.hudson/hudson.scm.SubversionSCM.xml

Not sure if it supports multiple repositories with different credentials.

Reference:
http://www.testearly.com/2007/06/12/subversion-authentication-in-hudson/

integrate Subversion with Windows Active Directory

apache httpd.conf

<Location /reponame>

DAV svn

SVNPath /opt/subversion/rep/reponame

AuthzSVNAccessFile /opt/subversion/rep/reponame/conf/authz

Require valid-user

AuthBasicProvider ldap

AuthType Basic

AuthName "subversion repository"

AuthLDAPURL "ldap://hostname:389/OU=Users,OU=Shire,DC=shire,DC=org?sAMAccountName?sub?(objectClass=hobbitName)" NONE

AuthLDAPBindDN "CN=Bilbo,CN=Users,DC=shire,DC=org"

AuthLDAPBindPassword "RiNg"

</Location>

---

authz example

[groups]

wizard = gandalf

hobbit = forodo, sam

[/]

#* = r

@wizard = rw

@hibbot = r

solaris ps wide

ps -awwx doesn't work under solaris?

don't use the one under /usr/bin/

try this:
/usr/ucb/ps -awwx

create read-only user in postgres

grant select,insert,update,delete only allows you to grant privileges to an indiviual table.

the following generate the grant commands to all tables in a database for you to copy & paste:

select 'grant select on ' || relname || ' to username;' from pg_class join pg_namespace on pg_namespace.oid=pg_class.relnamespace where nspname ='public' and relkind in ('r','v');

Reference: http://stackoverflow.com/questions/760210/how-do-you-create-a-read-only-user-in-postgresql

vmware server on ubuntu 8.04 64bit

After installed vmware server 1.0.6 on ubuntu 8.04 64bit, I’ve encountered two problems:

1.
Unable to get the last modification timestamp of the destination file /etc/vmware/ssl/rui.key

solution: apt-get install ia32-libs

2.
Failed to launch vmware:
fwu@vm-master:~$ vmware
/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1: version `GCC_3.4′ not found (required by /usr/lib32/libcairo.so.2)
/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1: version `GCC_4.2.0′ not found (required by /usr/lib32/libstdc++.so.6)
/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1: version `GCC_3.4′ not found (required by /usr/lib32/libcairo.so.2)
/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1: version `GCC_4.2.0′ not found (required by /usr/lib32/libstdc++.so.6)
/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1: version `GCC_3.4′ not found (required by /usr/lib32/libcairo.so.2)
/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1: version `GCC_4.2.0′ not found (required by /usr/lib32/libstdc++.so.6)

solution:
fwu@vm-master:~$ sudo
mv /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1 /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1.bak
References:
http://ubuntuforums.org/showthread.php?t=312981
http://radio.javaranch.com/davo/2008/06/18/1213791596327.html