Kurinchilion.com » Linux Windows Enterprise Solutions
In certain scenarios, users encounter above message when they try to connect to their web hosting accounting using one of their ftp programs like filezilla, ws-ftp, cuteftp, smartftp
Solutions that seemed to have worked for me
i) Host name: Try adding ftp://www.mysite.com and set the port to 21
ii) User name: Try typing username@domain.com instead of just the user name of the ftp user
There are different variants of Linux in the market like RedHat, Debian, CentOS, Ubuntu, Mandrake, Suse and a Linux beginner often ponder why they call Linux distributions by various names. The kernel or the heart of all the distributions is Linux and in bringing it to different market usage different community or vendors have adopted the kernel to serve that purpose.
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In the first article on Asterisk, we have seen the Asterisk installation steps and on the environment setup. In this article, we have give the configuration settings for two files iax.conf and extensions.conf which will be used to direct/receive calls from/to iax2 soft clients
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Asterisk Error: Failed to open dev dahdi transcode
> Edit /etc/asterisk/modules.conf and add the line “noload => codec_dahdi.so”
Asterisk Error: No music on hold classes configured disabling music on hold
> Edit /etc/asterisk/modules.conf and make changes not to include res_musiconhold.c by setting “noload => res_musiconhold”
- Check if asterisk.ctl exists
$ touch /var/run/asterisk/asterisk.ctl
$ chmod 777 asterisk.ctl
- Check if asterisk is running
$ /etc/init.d/asterisk restart
$ asterisk -r
This will be a simple step by step tutorial to help beginners catch up with ASTERISK – an open source tool for voice communication. It is a software installation of PBX connecting even the PSTN and VOIP networks.
Originally developed for Linux, Asterisk now runs on a variety of operating systems including Solaris, Windows and MacOS.
Environment setup
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Migrating SSL certificates: CPanel, WHM
Possible Scenarios
i) Server load balancing
ii) Moving web sites between servers
Find where the SSL certificates, private keys are installed in the old server and gzip the certs
$ tar -zxcf /tmp/crt.tar.gz /etc/ssl/certs
$ tar -zxcf /tmp/priv.tar.gz /etc/ssl/private
In the new server, extract the certificates and keys to its respective folder location. Edit httpd.conf file and add the following lines
SSLEngine on
SSLCertificateFile /etc/ssl/certs/example.com.crt
SSLCertificateKeyFile /etc/ssl/private/example.com.key
SSLCACertificateFile /etc/ssl/certs/example.com.cabundle
CustomLog /usr/local/apache/domlogs/exampleuser-ssl_log combined
Sample virtual host configuration setting
<VirtualHost xxx.xxx.xxx.xxx:443>
ServerName subdomain.example.com
ServerAlias www.subdomain.example.com
DocumentRoot /home/emaple/public_html
ScriptAlias /cgi-bin/ /home/example/public_html/cgi-bin/
SSLEngine on
SSLCertificateFile /etc/ssl/certs/example.com.crt
SSLCertificateKeyFile /etc/ssl/private/example.com.key
SSLCACertificateFile /etc/ssl/certs/example.com.cabundle
CustomLog /usr/local/apache/domlogs/exampleuser-ssl_log combined
SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown
<Directory "/home/example.com/public_html/cgi-bin">
SSLOptions +StdEnvVars
</Directory>
# To customize this VirtualHost use an include file at the following location
# Include "/usr/local/apache/conf/userdata/ssl/2/exampleuser/example.com/*.conf"
</VirtualHost>
Restart apache
$ /etc/init.d/httpd restart
(or)
$ /sbin/service httpd restart
Note: Once moving the SSL certificates to the new server, you can also use WHM or CPanel to configure the certs.
Check for the existence of the file sshd_config (/etc/ssh/sshd_config).
Before editing the file check that path settings for sftp-server
$ locate sftp-server
/usr/libexec/openssh/sftp-server
Check for the existence of following line in sshd_config
Subsystem sftp /usr/libexec/openssh/sftp-server
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To display messages from the log
$ cat /var/log/messages | more
To show users who are logged in to the system
$ who
To show the list of users who have logged in last
$ last
To show the list of all reboots
$ last reboot
To print the content of the last login log from /var/log/lastlog
$ lastlog
When moving mysql database from one server to another or, to test that the data backup works as expected we need to import mysql dump file in the testing environment.
Create the database (test-database) in the testing environment and identify the location of the .gz or .sql file.
If the mysql dump was a .gz file, you need to gunzip to uncompress the file by typing
$ gunzip mysqldump.sql.gz
This will uncompress the .gz file and will just store mysqldump.sql in the same location.
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