It’s been more than 1 an year and a half since this blog was started.

Now, I, Mihai Valentin launched my online portfolio, and part of this blog will be moved and continued to www.mihaivalentin.com/blog

Please update your links!

#/bin/sh
LAST_BACKUP=`cat /backup/_last_backup`
tar --after-date="`echo $LAST_BACKUP`" -X/backup/exclude.lst -zvcf /backup/web-`date +"%Y-%m-%d_%H-%M-%S"`.tgz /srv/www/
date +"%Y-%m-%d %H:%M:%S %Z" > /backup/_last_backup

The ideea is simple: _last_backup file will contain the data of the last backup, so that in the next one will be included only files that have been changed or added. Useful when you cannot install rdiff-backup.

Put the codes below in .bashrc in your user directory

function findt() { find . -name "$2" -print | xargs grep "$1" --color=ALWAYS ;}

To run:

findt "function" "*.php"
findt "System.exit" "*.java"

If you want to log the load average at the time of your requests, you can simply activate mod_loadaverage and then, in apache2.conf, use:

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\" %{LOADAVG1}e %{LOADAVG5}e" default_and_loadaverage
CustomLog /var/log/acceslog.loadaverage.log default_and_loadaverage

This way, the load average will be appended to each request logged.
If you want to access these variables from PHP, you can do:

$loadavg1 = $_SERVER['LOADAVG1']; // outputs the load 1 minute load average (ex: 0.5)

Module source code:

#include "httpd.h"
#include "http_config.h"

static int append_loadavg(request_rec *r) {
    char *buf1 = (char *)malloc(15);
    char *buf2 = (char *)malloc(15);
    float la1,la5;
    FILE *f = fopen("/proc/loadavg","r");
    if (f != NULL) {
        fscanf(f,"%f %f",&la1,&la5);
        fclose(f);
        sprintf(buf1, "%3.2f",la1);
        sprintf(buf2, "%3.2f",la5);
        apr_table_setn(r->subprocess_env,"LOADAVG1",buf1);
        apr_table_setn(r->subprocess_env,"LOADAVG5",buf2);
    }
    return OK;
}

static void loadavg_module_register_hooks(apr_pool_t *p) {
    ap_hook_fixups(append_loadavg,NULL,NULL,APR_HOOK_MIDDLE);
}

module AP_MODULE_DECLARE_DATA loadavg_module = {
    STANDARD20_MODULE_STUFF,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    loadavg_module_register_hooks
};

Installation

You need apxs2 (aptitude install apache2-dev – the developement version of apache)

apxs2 -i -c mod_loadavg.c

where mod_loadavg.c is the sourcecode above.

What apxs2 should do is:

- compile your module

- copy it to /usr/lib/apache2/modules (or whereever your apache modules dir folder is)

- add in httpd.conf the following: “LoadModule loadavg_module “/usr/lib/apache2/modules/mod_loadavg.so”"

After installation, make sure you restart apache.

As I told you before, a usage of it may be log the loadaverage during all of your reqeuests or to find out the loadaverage value from PHP.

This module is not tested thouroughly, but if you find it has any problems, tell me.

SyslogFacility AUTH
LogLevel INFO

Then restart sshd.

Then add this line to /etc/syslog.conf

auth.info;mail.none /var/adm/syslog/sshd.log

Then restart syslogd and youre done!

Source: http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1275035196242+28353475&threadId=267234

Instead of putting the conf inside the httpd2.conf, put it in the virtual hosts configuration. Otherwise it won’t work.

<VirtualHost *:80>
ServerAdmin webmaster@localhost

DocumentRoot /var/www/

<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all

BandwidthModule On
ForceBandWidthModule On
Bandwidth all 0
LargeFileLimit .flv 1000 256000
MinBandwidth all -1

</Directory>

…

2. ./configure && make (you must also enable the cgi)

3. In the vhost you need, just write

fastcgi.server = ( “.php” =>
((
“socket” => “/www/myvhost/tmp/php-fastcgi.socket”,
“bin-path” => “/usr/local/php-5.3.1/sapi/cgi/php-cgi -c /www/myvhost/php.ini”
))
)

4. Make sure that /usr/local/php-5.3.1 can be accessed by Lighttpd (it has enough permissions)

5. Restart lighttpd and enjoy!

you login, and issue a command

to recover from another console,

screen -r myscreen

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

int main(int argc, char *argv[]) {
 char buf[1024];

 // Socket stuff
 int sockfd, portno, n;
 struct hostent *he;
 struct sockaddr_in their_addr;
 he=gethostbyname("THE.WINDOWS.IP.HERE");

 sockfd = socket(AF_INET, SOCK_STREAM, 0);
 if (sockfd < 0) printf("ERROR opening socket");

 their_addr.sin_family = AF_INET;
 their_addr.sin_port = htons(39412); // port number
 their_addr.sin_addr = *((struct in_addr *)he->h_addr);
 memset(&(their_addr.sin_zero), '', 8);

 if(connect(sockfd, (struct sockaddr *)&their_addr, sizeof(struct sockaddr)) == -1) {
 printf("connect()\n");
 exit(1);
 } else {
 printf("s-a conectat!\n");
 }
 // Socket stuff end

 while (1) {
 fgets(buf, 1024, stdin);
 if (strlen(buf)>0) {
 write(sockfd, buf,strlen(buf));
 sleep(1);
 }
 memset(buf,0,sizeof(buf));
 }

 return 0;
}

On Windows, download and install netcat, and run it with the following command line:

nc -L -l -p 39412 > c:\php.log

Then, on Linux:

killall -9 mytransfer.o;  gcc -o mytransfer.o mytransfer.c && tail -f /tmp/php.log | ./mytransfer.o

You will now notice that the c:\php.log will contain the data which is being written in realtime on /tmp/php.log on the linux machine.

http://bluescripts.net/tag/lighttpd/

Second: Instal Lighttpd

Third: http://h264.code-shop.com/trac/wiki/Mod-H264-Streaming-Lighttpd-Version2

4th: Make sure autoconf, automake, libtool are the latest versions.

If you encounter problems, http://h264.code-shop.com/trac/discussion/1/85

To overcome this problem, instead of:

“.” => “index.php”

use

“.(?:\?(.*))?” => “index.php?$1″

This simulates QSA and makes your search work

.x-grid3-header {position: relative;}

RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^m/(.*)        /index.php?u=$1&m=1 [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)         /index.php?u=$1 [L]

To do this, just call the following functions

find . -type f -print0 | xargs -0 chmod 644;find . -type d -print0 | xargs -0 chmod 755

function contains($haystack, $needle) {
    return strpos($haystack,$needle)!==FALSE;
}

function beginsWith($str, $prefix) {
    return strpos($str, $prefix)===0;
}

why ===?

As you may know, in programming FALSE is referred to 0 and TRUE is referred to 1. The following statements yield TRUE:

1==TRUE
0==FALSE
1!=FALSE

The == sign checks only for the value. In order to check for both value and type, use ===.

Example:

1===TRUE –> FALSE (they are of same value, but not of same type; one is integer, other is boolean)

FALSE!==1 –> TRUE (even if false is considered as being 0, they are not of the same type.

That’s how strpos works. If it finds a match, it returns the position, as a number. If not, it returns boolean true or false.

Many people mistake when saying:

if (strpos(“test”,”t”)==0). This is ambigous, as t is on the first position of the string, but also, this would have been true if t wasn’t in the string at all, because the function would return FALSE, and if evaluated with == instead of ===, you may not know whether the character was found on the first position or not

Solution: This problem appears usually when using maps like Google Maps, Virtual Earth, Yahoo on your page. Move the script just before the closing of the body tag.

Example:

<html>
<body>
content here
<script … > <!--move the javascript of the map script here -->
</body>

Cause: The script tries to access an element before all the page has loaded. By putting it at the end, it first waits for the script to load, and then it processes it. At that time the page will be fully loaded, so no errors will appear.

Solution:  do not use ANY padding at all on those 2 elements. Why?
Because Internet Explorer 6 has a different approach on the W3C box model

Solution: just set the element’s display style to inline. (style=”margin-left: 10px; display: inline”)

Here are the steps to do:

1. Create a backup copy of your database and WordPress files before proceeding
2. Dump the database to a file, let’s call it myblog.sql
3. Open it with Notepad++ or UltraEdit and use Find and Replace: Find: http://localhost Replace: http://myblog.com . After replacing all, save the SQL file
4. Upload and import myblog.sql with PhpMyAdmin or other software
5. Upload wordpress files, and set writing permissions in the wp-content folder
6. You’re done