Personal Mind of ASEP — ASEP here to share

LEMP (Linux + NginX + MariaDB 10 + PHP 5.6) Stack on Debian 7

by asep on January 21, 2015

Tutorial berikut ini adalah menjelaskan bagaimana cara membuat sebuah web server yang powerful pada Linux Debian 7 (Wheezy) dengan LEMP Stack. LEMP merupakan sebah singkatan dimana L adalah Linux, lalu E adalah Engine X atau biasa di sebut NginX dan M sendiri adalah MariaDB kadang M bisa juga sebagai Mysql dan P adalah PHP.

Berikut langkah-langkah untuk membuat LEMP (Linux + Nginx + MariaDB + PHP) pada Debian 7 (Wheezy)

Karena saya menggunakan VPS idROOT Hosting yang berlokasi di Indonesia, Maka repositori LEMP, saya menggunakan yang ada di indonesia seperti KAMBING (Kambing.UI.ac.id) dan Biznet Network (Biz.net.id) untuk repositori MariaBD

Langkah 1: Ubah repositori utama debian ke Kambing.UI.ac.id

Untuk mengubah repositori pada debian, silakan buka file /etc/apat/source.list

deb http://kambing.ui.ac.id/debian/ wheezy main

deb-src http://kambing.ui.ac.id/debian/ wheezy main

deb http://kambing.ui.ac.id/debian/ wheezy-updates main

deb-src http://kambing.ui.ac.id/debian/ wheezy-updates main

deb http://kambing.ui.ac.id/debian-security/ wheezy/updates main contrib non-free

deb-src http://kambing.ui.ac.id/debian-security/ wheezy/updates main contrib non-free

Langkah 2: Tambahkan repo DotDEB (Kambing.UI.ac.id)

# mirror DOTDEB Kambing UI for NGINX

deb http://kambing.ui.ac.id/dotdeb/ wheezy all

deb-src http://kambing.ui.ac.id/dotdeb/ wheezy all

# Hapus komentar dari link dibawah jika ingin menggunakan

# mirror DOTDEB Kambing UI untuk PHP 5.4

#deb http://kambing.ui.ac.id/dotdeb/ wheezy-php54 all

#deb-src http://kambing.ui.ac.id/dotdeb/ wheezy-php54 all

# Hapus komentar dari link dibawah jika ingin menggunakan

# mirror DOTDEB Kambing UI untuk PHP 5.5

#deb http://kambing.ui.ac.id/dotdeb/ wheezy-php55 all

#deb-src http://kambing.ui.ac.id/dotdeb/ wheezy-php55 all

# Hapus komentar dari link dibawah jika ingin menggunakan

# mirror DOTDEB Kambing UI untuk PHP 5.6

deb http://kambing.ui.ac.id/dotdeb/ wheezy-php56 all

deb-src http://kambing.ui.ac.id/dotdeb/ wheezy-php56 all

Fetch dan install the GnuPG key

1 2	wget http://www.dotdeb.org/dotdeb.gpg sudo apt-key add dotdeb.gpg

Langkah 3: Tambahkan repo MariaDB (Biznet Networks, Indonesia)

Jalankan perintah berikut untuk menambahkan MariaDB kedalam sistem

sudo apt-get install python-software-properties

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db

sudo add-apt-repository 'deb http://mariadb.biz.net.id//repo/10.0/debian wheezy main'

Langkah 4: Update Apt-Get

1 2	sudo apt-get update sudo apt-get upgrade

Langkah 5: Hapus Apache and Install Nginx Web server

Untuk menghapus Apache Web server sampai bersih, jalan perintah berikut

1 2	apt-get purge apache* rm -rf /etc/apache2

Langkah 5: Instalasi NginX Web Server

1	apt-get install nginx

Langkah 6: Konfigurasi NginX

Untuk konfigurasi nginx, buka file /etc/nginx/sites-available/default dan sesuaikan isinya dengan yang berikut:

[...]

server {

listen 80;

root /usr/share/nginx/www;

index index.php index.html index.htm;

server_name example.com;

location / {

try_files $uri $uri/ /index.html;

}

error_page 404 /404.html;

error_page 500 502 503 504 /50x.html;

location = /50x.html {

root /usr/share/nginx/www;

}

# pass the PHP scripts to FastCGI server listening on /var/run/php5-fpm.sock

location ~ \.php$ {

try_files $uri =404;

fastcgi_pass unix:/var/run/php5-fpm.sock;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

[...]

Langkah 7: Instalasi MariaDB

Untuk melakukan instalasi MariaDB jalankan perintah berikut:

1	apt-get install mariadb-server

Mengamankan instalasi MariaDB

root@www:~# mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

You already have a root password set, so you can safely answer 'n'.

Change the root password? [Y/n] n
 ... skipping.

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist
 ... Failed!  Not critical, keep moving...
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

root@www:~# mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB

SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current

password for the root user. If you've just installed MariaDB, and

you haven't set the root password yet, the password will be blank,

so you should just press enter here.

Enter current password for root (enter for none):

OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB

root user without the proper authorisation.

You already have a root password set, so you can safely answer 'n'.

Change the root password? [Y/n] n

... skipping.

By default, a MariaDB installation has an anonymous user, allowing anyone

to log into MariaDB without having to have a user account created for

them. This is intended only for testing, and to make the installation

go a bit smoother. You should remove them before moving into a

production environment.

Remove anonymous users? [Y/n] y

... Success!

Normally, root should only be allowed to connect from 'localhost'. This

ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y

... Success!

By default, MariaDB comes with a database named 'test' that anyone can

access. This is also intended only for testing, and should be removed

before moving into a production environment.

Remove test database and access to it? [Y/n] y

- Dropping test database...

ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist

... Failed! Not critical, keep moving...

- Removing privileges on test database...

... Success!

Reloading the privilege tables will ensure that all changes made so far

will take effect immediately.

Reload privilege tables now? [Y/n] y

... Success!

Cleaning up...

All done! If you've completed all of the above steps, your MariaDB

installation should now be secure.

Thanks for using MariaDB!

Langkah 8: Installasi dan Konfigurasi PHP

Untuk instalasi PHP, jalankan perinta berikut:

1	apt-get install php5-fpm php5-mysql

Untuk konfigurasi PHP, pertama buka file /etc/php5/fpm/php.ini lalu cari cgi.fix_pathinfo=1 dan ubah angka 1 menjadi 0, menjadi seperti berikut:

1	cgi.fix_pathinfo=0

setelah itu buka file /etc/php5/fpm/pool.d/www.conf lalu cari listen = 127.0.0.1:9000 dan ubah 127.0.0.1:9000 menjadi /var/run/php5-fpm.sock sehingga tampak seperti berikut ini

1	listen = /var/run/php5-fpm.sock

Lalu restart NginX dan php-fpm

1 2	service nginx restart service php5-fpm restart

Langkah 9: Verifikasi

Untuk memastikan NginX, MariaDB dan PHP sudah terinstal dengan baik, silakan jalankan perintah berikut

root@www:~# php -v

PHP 5.6.4-1~dotdeb.1 (cli) (built: Dec 19 2014 20:14:24)

root@www:~# mysql -V

mysql Ver 15.1 Distrib 10.1.2-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

root@www:~# nginx -v

nginx version: nginx/1.2.1

Setelah itu buatkan sebuah file phpinfo untuk memastikan PHP sudah berjalan dengan baik

1	nano /usr/share/nginx/www/info.php

lalu isi dengan

<?php

phpinfo();

dan buka file tersebut melaui web browser http://ip-anda/info.php

Apabila instalasi sudah berhasil maka akan muncul gambar berikut:

Demikianlah langkah-langkah untuk membuat sebuah web server pada sistem operasi Debian 7 (Wheezy) dengan LEMP (Linux + NginX + MariaDB 10 + PHP 5.6) Stack, semoga tutorial tersebut dapat bermamfaat.

{ 0 comments }

cPanel: How to Limit Maximum Email Size or Email Attachment

by asep on January 20, 2015

Default max file size limit that can be sent and received in cPanel (Exim Mail Server) is 50 MB, and How to Limit Maximum Email Size or Email Attachment ?

To Limit Maximum Email Size do the following,

Login to cPanel/WHM as root
Under Service Configuration, Click “exim Configuration Manager”
Click “Advanced Editor”
Scroll down and Click “Add additional Configuration Setting”
Find “message_size_limit” in pull-down list and choose
Enter limit that you want to change to
Scroll to bottom and click “save”

{ 0 comments }

Varnish 4 Configuration to Optimize WordPress

by asep on January 18, 2015

Varnish is a cache, which means its role is to store and remember what a web application serves to the user the first time the content is accessed. Then it can serve the same content again for subsequent requests without asking the web application again.

It can be used to serve static content, such as images, scripts, or stylesheets, because Varnish is blazingly fast and copes with traffic much better than Apache does. It can also be used to cache quasi-static content; that is, content that is generated dynamically by the application (using the database and taking a considerable amount of time to prepare), but that stays unchanged for a period of time, making the content suitable for caching.

Put the following code at default.vcl

#
# This is an example VCL file for Varnish.
#
# It does not do anything by default, delegating control to the
# builtin VCL. The builtin VCL is called when there is no explicit
# return statement.
#
# See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/
# and http://varnish-cache.org/trac/wiki/VCLExamples for more examples.

# Update for work with Varnish 4

# Marker to tell the VCL compiler that this VCL has been adapted to the
# new 4.0 format.
vcl 4.0;

# Default backend definition. Set this to point to your content server.
backend default {
    .host = "127.0.0.1";
    .port = "8080";
    .connect_timeout = 600s;
    .first_byte_timeout = 600s;
    .between_bytes_timeout = 600s;
    .max_connections = 800;
}

# Only allow purging from specific IPs
acl purge {
    "localhost";
    "127.0.0.1";
}

# This function is used when a request is send by a HTTP client (Browser) 
sub vcl_recv {
	# Normalize the header, remove the port (in case you're testing this on various TCP ports)
	set req.http.Host = regsub(req.http.Host, ":[0-9]+", "");

# Allow purging from ACL
	if (req.method == "PURGE") {
		# If not allowed then a error 405 is returned
		if (!client.ip ~ purge) {
			return(synth(405, "This IP is not allowed to send PURGE requests."));
		}	
		# If allowed, do a cache_lookup -> vlc_hit() or vlc_miss()
		return (purge);
	}

# Post requests will not be cached
	if (req.http.Authorization || req.method == "POST") {
		return (pass);
	}

# --- Wordpress specific configuration
	
	# Did not cache the RSS feed
	if (req.url ~ "/feed") {
		return (pass);
	}

# Blitz hack
        if (req.url ~ "/mu-.*") {
                return (pass);
        }

# Did not cache the admin and login pages
	if (req.url ~ "/wp-(login|admin)") {
		return (pass);
	}
	
	 # Do not cache the WooCommerce pages
	 ### REMOVE IT IF YOU DO NOT USE WOOCOMMERCE ###
	if (req.url ~ "/(cart|my-account|checkout|addons|/?add-to-cart=)") {
        	return (pass);
    	}

# Remove the "has_js" cookie
	set req.http.Cookie = regsuball(req.http.Cookie, "has_js=[^;]+(; )?", "");

# Remove any Google Analytics based cookies
	set req.http.Cookie = regsuball(req.http.Cookie, "__utm.=[^;]+(; )?", "");

# Remove the Quant Capital cookies (added by some plugin, all __qca)
	set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");

# Remove the wp-settings-1 cookie
	set req.http.Cookie = regsuball(req.http.Cookie, "wp-settings-1=[^;]+(; )?", "");

# Remove the wp-settings-time-1 cookie
	set req.http.Cookie = regsuball(req.http.Cookie, "wp-settings-time-1=[^;]+(; )?", "");

# Remove the wp test cookie
	set req.http.Cookie = regsuball(req.http.Cookie, "wordpress_test_cookie=[^;]+(; )?", "");

# Are there cookies left with only spaces or that are empty?
	if (req.http.cookie ~ "^ *$") {
		    unset req.http.cookie;
	}
	
	# Cache the following files extensions 
	if (req.url ~ "\.(css|js|png|gif|jp(e)?g|swf|ico)") {
		unset req.http.cookie;
	}

# Normalize Accept-Encoding header and compression
	# https://www.varnish-cache.org/docs/3.0/tutorial/vary.html
	if (req.http.Accept-Encoding) {
		# Do no compress compressed files...
		if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {
			   	unset req.http.Accept-Encoding;
		} elsif (req.http.Accept-Encoding ~ "gzip") {
		    	set req.http.Accept-Encoding = "gzip";
		} elsif (req.http.Accept-Encoding ~ "deflate") {
		    	set req.http.Accept-Encoding = "deflate";
		} else {
			unset req.http.Accept-Encoding;
		}
	}

# Check the cookies for wordpress-specific items
	if (req.http.Cookie ~ "wordpress_" || req.http.Cookie ~ "comment_") {
		return (pass);
	}
	if (!req.http.cookie) {
		unset req.http.cookie;
	}
	
	# --- End of Wordpress specific configuration

# Did not cache HTTP authentication and HTTP Cookie
	if (req.http.Authorization || req.http.Cookie) {
		# Not cacheable by default
		return (pass);
	}

# Cache all others requests
	return (hash);
}
 
sub vcl_pipe {
	return (pipe);
}
 
sub vcl_pass {
	return (fetch);
}
 
# The data on which the hashing will take place
sub vcl_hash {
 	hash_data(req.url);
 	if (req.http.host) {
     	hash_data(req.http.host);
 	} else {
     	hash_data(server.ip);
 	}

# If the client supports compression, keep that in a different cache
    	if (req.http.Accept-Encoding) {
        	hash_data(req.http.Accept-Encoding);
	}
     
	return (lookup);
}
 
# This function is used when a request is sent by our backend (Nginx server)
sub vcl_backend_response {
	# Remove some headers we never want to see
	unset beresp.http.Server;
	unset beresp.http.X-Powered-By;

# For static content strip all backend cookies
	if (bereq.url ~ "\.(css|js|png|gif|jp(e?)g)|swf|ico") {
		unset beresp.http.cookie;
	}

# Only allow cookies to be set if we're in admin area
	if (beresp.http.Set-Cookie && bereq.url !~ "^/wp-(login|admin)") {
        	unset beresp.http.Set-Cookie;
    	}

# don't cache response to posted requests or those with basic auth
	if ( bereq.method == "POST" || bereq.http.Authorization ) {
        	set beresp.uncacheable = true;
		set beresp.ttl = 120s;
		return (deliver);
    	}
 
    	# don't cache search results
	if ( bereq.url ~ "\?s=" ){
		set beresp.uncacheable = true;
                set beresp.ttl = 120s;
                return (deliver);
	}
    
	# only cache status ok
	if ( beresp.status != 200 ) {
		set beresp.uncacheable = true;
                set beresp.ttl = 120s;
                return (deliver);
	}

# A TTL of 24h
	set beresp.ttl = 24h;
	# Define the default grace period to serve cached content
	set beresp.grace = 30s;
	
	return (deliver);
}
 
# The routine when we deliver the HTTP request to the user
# Last chance to modify headers that are sent to the client
sub vcl_deliver {
	if (obj.hits > 0) { 
		set resp.http.X-Cache = "cached";
	} else {
		set resp.http.x-Cache = "uncached";
	}

# Remove some headers: PHP version
	unset resp.http.X-Powered-By;

# Remove some headers: Apache version & OS
	unset resp.http.Server;

# Remove some heanders: Varnish
	unset resp.http.Via;
	unset resp.http.X-Varnish;

return (deliver);
}
 
sub vcl_init {
 	return (ok);
}
 
sub vcl_fini {
 	return (ok);
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

# This is an example VCL file for Varnish.

# It does not do anything by default, delegating control to the

# builtin VCL. The builtin VCL is called when there is no explicit

# return statement.

# See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/

# and http://varnish-cache.org/trac/wiki/VCLExamples for more examples.

# Update for work with Varnish 4

# Marker to tell the VCL compiler that this VCL has been adapted to the

# new 4.0 format.

vcl 4.0;

# Default backend definition. Set this to point to your content server.

backend default {

.host = "127.0.0.1";

.port = "8080";

.connect_timeout = 600s;

.first_byte_timeout = 600s;

.between_bytes_timeout = 600s;

.max_connections = 800;

}

# Only allow purging from specific IPs

acl purge {

"localhost";

"127.0.0.1";

}

# This function is used when a request is send by a HTTP client (Browser)

sub vcl_recv {

# Normalize the header, remove the port (in case you're testing this on various TCP ports)

set req.http.Host = regsub(req.http.Host, ":[0-9]+", "");

# Allow purging from ACL

if (req.method == "PURGE") {

# If not allowed then a error 405 is returned

if (!client.ip ~ purge) {

return(synth(405, "This IP is not allowed to send PURGE requests."));

}

# If allowed, do a cache_lookup -> vlc_hit() or vlc_miss()

return (purge);

}

# Post requests will not be cached

if (req.http.Authorization || req.method == "POST") {

return (pass);

}

# --- Wordpress specific configuration

# Did not cache the RSS feed

if (req.url ~ "/feed") {

return (pass);

}

# Blitz hack

if (req.url ~ "/mu-.*") {

return (pass);

}

# Did not cache the admin and login pages

if (req.url ~ "/wp-(login|admin)") {

return (pass);

}

# Do not cache the WooCommerce pages

### REMOVE IT IF YOU DO NOT USE WOOCOMMERCE ###

if (req.url ~ "/(cart|my-account|checkout|addons|/?add-to-cart=)") {

return (pass);

}

# Remove the "has_js" cookie

set req.http.Cookie = regsuball(req.http.Cookie, "has_js=[^;]+(; )?", "");

# Remove any Google Analytics based cookies

set req.http.Cookie = regsuball(req.http.Cookie, "__utm.=[^;]+(; )?", "");

# Remove the Quant Capital cookies (added by some plugin, all __qca)

set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");

# Remove the wp-settings-1 cookie

set req.http.Cookie = regsuball(req.http.Cookie, "wp-settings-1=[^;]+(; )?", "");

# Remove the wp-settings-time-1 cookie

set req.http.Cookie = regsuball(req.http.Cookie, "wp-settings-time-1=[^;]+(; )?", "");

# Remove the wp test cookie

set req.http.Cookie = regsuball(req.http.Cookie, "wordpress_test_cookie=[^;]+(; )?", "");

# Are there cookies left with only spaces or that are empty?

if (req.http.cookie ~ "^ *$") {

unset req.http.cookie;

}

# Cache the following files extensions

if (req.url ~ "\.(css|js|png|gif|jp(e)?g|swf|ico)") {

unset req.http.cookie;

}

# Normalize Accept-Encoding header and compression

# https://www.varnish-cache.org/docs/3.0/tutorial/vary.html

if (req.http.Accept-Encoding) {

# Do no compress compressed files...

if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {

unset req.http.Accept-Encoding;

} elsif (req.http.Accept-Encoding ~ "gzip") {

set req.http.Accept-Encoding = "gzip";

} elsif (req.http.Accept-Encoding ~ "deflate") {

set req.http.Accept-Encoding = "deflate";

} else {

unset req.http.Accept-Encoding;

}

# Check the cookies for wordpress-specific items

if (req.http.Cookie ~ "wordpress_" || req.http.Cookie ~ "comment_") {

return (pass);

}

if (!req.http.cookie) {

unset req.http.cookie;

}

# --- End of Wordpress specific configuration

# Did not cache HTTP authentication and HTTP Cookie

if (req.http.Authorization || req.http.Cookie) {

# Not cacheable by default

return (pass);

}

# Cache all others requests

return (hash);

}

sub vcl_pipe {

return (pipe);

}

sub vcl_pass {

return (fetch);

}

# The data on which the hashing will take place

sub vcl_hash {

hash_data(req.url);

if (req.http.host) {

hash_data(req.http.host);

} else {

hash_data(server.ip);

}

# If the client supports compression, keep that in a different cache

if (req.http.Accept-Encoding) {

hash_data(req.http.Accept-Encoding);

}

return (lookup);

}

# This function is used when a request is sent by our backend (Nginx server)

sub vcl_backend_response {

# Remove some headers we never want to see

unset beresp.http.Server;

unset beresp.http.X-Powered-By;

# For static content strip all backend cookies

if (bereq.url ~ "\.(css|js|png|gif|jp(e?)g)|swf|ico") {

unset beresp.http.cookie;

}

# Only allow cookies to be set if we're in admin area

if (beresp.http.Set-Cookie && bereq.url !~ "^/wp-(login|admin)") {

unset beresp.http.Set-Cookie;

}

# don't cache response to posted requests or those with basic auth

if ( bereq.method == "POST" || bereq.http.Authorization ) {

set beresp.uncacheable = true;

set beresp.ttl = 120s;

return (deliver);

}

# don't cache search results

if ( bereq.url ~ "\?s=" ){

set beresp.uncacheable = true;

set beresp.ttl = 120s;

return (deliver);

}

# only cache status ok

if ( beresp.status != 200 ) {

set beresp.uncacheable = true;

set beresp.ttl = 120s;

return (deliver);

}

# A TTL of 24h

set beresp.ttl = 24h;

# Define the default grace period to serve cached content

set beresp.grace = 30s;

return (deliver);

}

# The routine when we deliver the HTTP request to the user

# Last chance to modify headers that are sent to the client

sub vcl_deliver {

if (obj.hits > 0) {

set resp.http.X-Cache = "cached";

} else {

set resp.http.x-Cache = "uncached";

}

# Remove some headers: PHP version

unset resp.http.X-Powered-By;

# Remove some headers: Apache version & OS

unset resp.http.Server;

# Remove some heanders: Varnish

unset resp.http.Via;

unset resp.http.X-Varnish;

return (deliver);

}

sub vcl_init {

return (ok);

}

sub vcl_fini {

return (ok);

}

{ 0 comments }

Outlook Email Will Have Features Download File Attachment to OneDrive

by asep on January 12, 2015

Microsoft will release a new feature in Outlook email service , where users will be able to save Outlook email files or email attachments directly to OneDrive cloud storage.

As reported IB Times , Monday ( 12/01/2015 ) , for now the feature is still in limited release . In the next few weeks , Microsoft will expand its availability to all users of Outlook on a global basis.

How does it work? Outlook users can check their e-mail functionality in by clicking any attachment . Without the need to select the option ‘ Save to OneDrive ‘ , attachments are automatically saved to OneDrive integrated with the user’s email account .

Attachment is then available to be viewed and edited at any time . The users in the business will be greatly assisted when the function is released in full later . No need to complain of hard disk capacity is insufficient and did not bother to transfer files manually or new attachment to OneDrive .

With the addition of this function is expected to add to the appeal of the Outlook users . Google competitors , already allows Gmail users to save files and attachments directly to Google Drive .

ref: inet.detik.com

{ 0 comments }

Kloxo: Error Ketika Membuat Sub Domain

by asep on January 8, 2015

Ketika anda ingin membuat sebuah sub domain pada kloxo, kadang suka muncul sebagai berikut :

Alert: could_not_add_mail [Error – no authentication database connection. Initial open.]

Solusi untuk menghilangkan error tersebut:

1. Reset password MySql melalui Kloxo -> Mysql Password Reset
2. Setelah MySql password di reset, lalu jalankan command berikut melalui ssh

/script/upcp

/script/fixvpop

/script/fixmail

Semoga bisa membantu

{ 0 comments }

Remote Desktop pada Linux dengan FreeNX

by asep on January 11, 2014

Bagi pengguna sistem operasi windows sudah tidak asing lagi dengan istilah Remote Desktop yang berfungsi untuk mengakses sebuah komputer baik itu desktop maupun server secara remote.

Sekarang bagaimana ketika kita mempunyai sebuah komputer yang berisikan sistem operasi linux dapat di akses secara remote, dimana lazimnya sebuah komputer dengan OS linux terbiasa diakses melalui konsol atau CLI melalui protokol ssh.

Sebetulnya ada beberapa alternatif untuk melakukan remote akses terhadap komputer dengan sistem operasi linux, salah satunya dengan menggunakan VNC, tetapi menurut pengalaman saya sebuah VNC server cukup berat untuk diakses melalui internet apabila diakses dengan menggunakan koneksi internet yang terbatas.

Di sini saya coba berikan alternatif selain VNC yaitu dengan FreeNX server, dimana memiliki beberapa kelebihan seperti akses yang relatif lebih stabil dan cepat serta yang paling saya suka adalah bisa restore beberapa session login ke server.

Berikut ini adalah langkah-langkah untuk instalasi FreeNX dimana saya menggunakan sistem operasi CentOS 6.5

Langkah 1: Instalasi gnome

Apabila ketika pertama kali anda melakukan instalasi centos dalam bentuk minimal, anda harus tambahkan desktop environment terlebih dahulu, dalam hal ini saya menggunakan gnome.

1	[root@server ~]# yum groupinstall -y 'Desktop' nano

Langkah 2 : Instalasi FreeNX server

1	[root@server ~]# yum install nx freenx

Langkah 3 : Konfigurasi FreeNX Server

ubah konfigurasi pada node.conf

1	[root@server ~]# nano /etc/nxserver/node.conf

cari baris tulisan ENABLE_PASSDB_AUTHENTICATION dan ubah menjadi

1	ENABLE_PASSDB_AUTHENTICATION="1"

lalu simpan dengan pencet ctrl+O dan keluar dengan ctrl+X

Tambahkan user pada centos

1	[root@server ~]# adduser asep

Tambahkan password pada asep

1	[root@server ~]# passwd asep

Tambahkan user pada database nxserver

1	[root@server ~]# nxserver --adduser asep

Tambahkan password untuk asep

1	root@server ~]# nxserver --passwd asep

Restart nxserver

1	root@server ~]# /etc/init.d/freenx-server restart

Saat ini komputer linux anda sudah siap untuk di-remote. pada distro linux (linux mint) saya biasa menggunakan remmina sebagai remote desktop client, untuk pengguna windows, anda bisa menggunakan NX Client dari Nomachine atau bisa juga menggunakan OpenNX

Janaan lupa untuk menambahkan key sebagai autentifikasi ke nxserver, key tersebut terdapat di /etc/nxserver/ dengan nama file client.id_dsa.key

{ 0 comments }

Next Posts Previous Posts