May 8, 2010

Plesk VPS Migration for plesk 9 series

Linux/Windows Support,Plesk,

1. Upload migration agent and modules to the source server. For example for Parallels Plesk Panel, there are two folders: “/usr/local/psa/PMM/agents/shared” and “/usr/local/psa/PMM/agents/PleskX”. Use the command below to copy the Migration Manager: destination ~# scp -r /usr/local/psa/PMM/agents/shared/* /usr/local/psa/PMM/agents/PleskX/* root@source:temporary_migration_directory/ 2. Login to source server and change to directory /temporary_migration_directory. Run migration agent (PleskX.pl) with parameter…

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March 16, 2010

Firewall – Reject or Drop a packet

Linux/Windows Support,

Firewall – Reject or Drop a packet While setting up firewall rules, the biggest question that arises while blocking a packet is, whether to reject or drop that packet. Reject a packet – Block the packet with an error response to the sender of the packet. Drop a packet – Block the packet without any…

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January 23, 2010

Can’t connect to Plesk SQL Server (after updating Plesk admin password)

Linux/Windows Support,

Can’t connect to Plesk SQL Server (after updating Plesk admin password) Jet engine is configured as Plesk Database Provider by default and Plesk SQL (MySql) service is set to disabled. However Plesk installer sets MySQL admin’s password the same as Plesk’s admin. If Plesk’s admin password is changed MySQL admin’s password remains the same which…

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January 13, 2010

Can’t change administrator email address

Linux/Windows Support,

Can’t change administrator email address Error : Unable to update administrator information: Error 2 at CMMFile::CMMFile: open file C:\inetpub\vhosts\default\htdocs\index.html: The system cannot find find the file specified. Solution : You should be able to resolve this after getting the contents css img favicon.ico index.html replaced over here ‘C:\inetpub\vhosts\default\htdocs’. You will be able to update the…

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January 9, 2010

Unable to add/remove domain alias in Helm Control Panel

Linux/Windows Support,

Unable to add/remove domain alias in Helm Control Panel You could have experienced this error CDomainAlias.DeleteEx 0-xxxxxxxxxx: Unknown error while adding host header: A name contained an invalid character. in Helm Error Logs. If that’s the case please remove IIS.XML in the remote server where the domain is actually hosted. P.S. IIS.XML is available at…

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January 9, 2010

Accessing Plesk shows invalid security certificate.

Linux/Windows Support,

Accessing Plesk shows invalid security certificate Accessing Plesk Control Panel with https displays the following; mydomain:8443 uses an invalid security certificate. The certificate is not trusted because it is self signed. The certificate is only valid for plesk. (Error code: sec_error_ca_cert_invalid) You don’t need to buy another certificate, the certificate you now have is auto-generated…

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January 1, 2010

Create directory & set permission using a single Linux command

Linux General,Linux/Windows Support,

Generaly, we create directory using “mkdir” command and then change it’s permissions using “chmod” command. Create directory & set permission using a single Linux command Actually, we can set the permissions for the directory at the time of it’s creation itself, with the following command: $ mkdir zyz -v -m 644 mkdir: created directory `zyz'…

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January 1, 2010

Linux Package Management Tips

Linux General,Linux/Windows Support,

Try these Linux package management tips. Linux Package Management Tips 1) To check if a package is available in repositories and if so available, to check the version and size of the package, as superuser run the following commands in respective distro: Fedora, CentOS: yum list <package_name> Ubuntu/Debian: aptitude search <package_name> OpenSuse: zypper search <package_name>…

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January 1, 2010

Find programs hogging bandwidth using iftop command in Linux

Linux General,Linux/Windows Support,

Find programs hogging bandwidth using iftop command in Linux Using iftop command we shall be able to determine what program is hogging bandwidth. iftop -bNBP is the commonly used option where -n don’t do hostname lookups -N don’t convert port numbers to services -B Display bandwidth in bytes -P show ports as well as hosts…

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September 16, 2009

Run Database Servers Optimally

Linux/Windows Support,

Now run the database server optimally using the below procedures and ensure your systems are functioning at peak efficiency. – kernel.shmmax=268435456 for 32-bit – kernel.shmmax=1073741824 for 64-bit – kernel.msgmni=1024- fs.file-max=8192 – kernel.sem=”250 32000 32 1024″ Shared Memory Shared Memory To view current settings, run the command: # more /proc/sys/kernel/shmmax To set it to a new…

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