jdk installation

when installing jdk depenging on the version for JRE to work correctly as well

java-sun-compat

has to be installed too.

for example for jdk-6u6-linux-i586.rpm to work along with tomcat you need to install java-1.6.0-sun-compat-1.6.0.06-1jpp.i586.rpm as well, otherwise tomcat and the applications that need jre 1.5 upwards will not work.

Strange Linux PPTP problem

When using Linux PPTP service web pages fail to load completely [freeze] (aka common PPTP MTU problem) all one has to do is to:

> cat /etc/ppp/ip-up.local
#!/bin/bash
/sbin/ifconfig $1 mtu 1400

Tor problem

When Tor can not connect the first thing you do is to check the date/time of your machine!

Jalali Date - Javascript

Jalali date in java script as active desktop element
it can be downloaded from:
http://sites.google.com/site/alisade/Home/fdate.zip?attredirects=0

a simple bash prompt PS1

export PS1="\[\e[32;1m\]\d \t\[\e[36;1m\]\n\u@\h\n\[\e[31;1m\]\w > \[\e[0m\]"

openvpn config parameter seems compulsory

Although I used to do openvpn TLS without the "tls-auth ta.key 0" directive for years, now it looks like it has become compulsory, otherwise handshake will not occcur completely although the first
TLS: Initial packet from xxx.xx.xx.xx:1194, sid=42fb5c72 1f286ab1
is exchanged with no problems

linux disable single user mode

do not try to disable the single user mode instead use a grub password.

Join a computer to windows 2003 domain

When joining a computer to a windows 2003 box remember to add the .com at the end of the domain name otherwise the dns will not find the SRV record of the domain name

free totally legal Nastaliq font by http://www.scict.ir/

http://www.box.net/shared/bh9ioqs2ss originally from http://www.scict.ir/

command line download accelerator for windows

AXEL is a command line accelerator for the *nix, I have compiled it under cygwin and have put it here:

http://www.box.net/shared/avraot95w8

Enjoy!

iptables enable passive mode ftp

just do this:
modprobe ip_conntrack_ftp

red hat root login in telnet,...

edit /etc/pam.d/login and /etc/pam.d/remote and

comment out

auth required pam_securetty.so

crontab does not accept

crontab does not accept commands with `command to execute` within command line

Simple web sharing in apache

httpd.conf:

Alias /cbt "/users/WWW"

Order Allow,Deny
Allow from All

Error: Can't open Display

although you do an xhost + still you cannot do an xclock so:

on the machine connecting to the other do a
vi /etc/X11/gdm/gdm.com

DisallowTCP=false


** REMEMBER to check iptables

XTERM execute parameter

XTERM -e (exexute switch) MUST be the last one passed to XTERM.

Oracle Move from one computer/directory to another

1. Edit and replace paths in

/etc/oratab
/etc/rc.d/rc5.d/S99zzoracle_orasid
/etc/rc.d/init.d/orastop_orasid
/etc/rc.d/init.d/listener_orasid
/etc/rc.d/init.d/orastart_orasid
/etc/rc.d/rc6.d/K10zzoracle_orasid
/etc/rc.d/rc0.d/K10zzoracle_orasid
/etc/rc.d/rc3.d/S99zzoracle_orasid
/etc/rc.d/rc1.d/K10zzoracle_orasid
/etc/oraInst.loc

2. Edit and replace paths in
listener.ora tnsnames.ora

3. login as sys as sysdba (listener must be on and database mounted)
create pfile='/apps/oracle/OraHome1/dbs/initorasid.ora' from spfile='/apps/oracle/OraHome1/dbs/spfileorasid.ora'

4. Edit /apps/oracle/OraHome1/dbs/initorasid.ora and change paths

5. Now do the reverse
create spfile='/apps/oracle/OraHome1/dbs/spfileorasid.ora' from pfile='/apps/oracle/OraHome1/dbs/initorasid.ora'

6. The last step is to alter internal files names:
alter database rename file '/home/gf_admin/oradata/gftt/control01.ctl' to '/apps/gf_admin/oradata/gftt/control01.ctl';
alter database rename file '/home/gf_admin/oradata/gftt/control02.ctl' to '/apps/gf_admin/oradata/gftt/control02.ctl';
alter database rename file '/home/gf_admin/oradata/gftt/control03.ctl' to '/apps/gf_admin/oradata/gftt/control03.ctl';
alter database rename file '/home/gf_admin/oradata/gftt/redo01.log' to '/apps/gf_admin/oradata/gftt/redo01.log';
alter database rename file '/home/gf_admin/oradata/gftt/redo02.log' to '/apps/gf_admin/oradata/gftt/redo02.log';
alter database rename file '/home/gf_admin/oradata/gftt/redo03.log' to '/apps/gf_admin/oradata/gftt/redo03.log';
alter database rename file '/home/gf_admin/oradata/gftt/system.dbf' to '/apps/gf_admin/oradata/gftt/system.dbf';
alter database rename file '/home/gf_admin/oradata/gftt/temp.dbf' to '/apps/gf_admin/oradata/gftt/temp.dbf';
alter database rename file '/home/gf_admin/oradata/gftt/tsdata.dbf' to '/apps/gf_admin/oradata/gftt/tsdata.dbf';
alter database rename file '/home/gf_admin/oradata/gftt/tsindex.dbf' to '/apps/gf_admin/oradata/gftt/tsindex.dbf';
alter database rename file '/home/gf_admin/oradata/gftt/undotbs.dbf' to '/apps/gf_admin/oradata/gftt/undotbs.dbf';

oracle spfile and pfile

startup using spfile
STARTUP

startup using pfile
STARTUP PFILE=’C:\oracle\product\10.2.0\admin\MarlonDB\initMarlonDB01.ora’

convert one to another:
CREATE SPFILE=’C:\oracle\product\10.2.0\db_1\database\spfileMarlonDB01.ora’ FROM PFILE=’C:\oracle\product\10.2.0\admin\MarlonDB\initMarlonDB01.ora’;

CREATE PFILE=’C:\oracle\product\10.2.0\admin\MarlonDB\initMarlonDB01.ora’ FROM SPFILE=’C:\oracle\product\10.2.0\db_1\database\spfileMarlonDB01.ora’;

linux increase swap

mkdir /opt
dd if=/dev/zero of=swapfile01 bs=1024M count=1
mkswap swapfile01
swapon swapfile01

vi /etc/fstab

/opt/swapfile01 swap swap defaults 0 0

oracle 9i export

if exporting from an oracle 9 instance ended in error you have to run $ORACLE_HOME/rdbms/admin/catexp.sql first.