nconf stopped working after update to nagios 4
I recently updated our nagios monitoring system from Nagios 3 to Nagios 4 and nconf started giving below error when I generate the new configuration files. Error: Service has no…
Upstream timed out (110: Connection timed out) while reading response header from upstream
Today I found below error in the nginx logs. Upstream timed out (110: Connection timed out) while reading response header from upstream This error generally occurs when nginx is configured…
How to check if the disk is SSD?
Most of the data centers and hosting providers are now offering SSD (Solid-state drive). If you run the fdisk command to check the drives it's still going to show as…
Varnish: VCL version declaration missing Update your VCL to Version 4 syntax
Today I installed latest version of varnish on a new server and configured it manually. I tried to start it but it was failing. So I did a configuration file…
How to install VIRTUALIZOR on OVH Servers
OVH provide dedicated servers with their own customized kernels. Also the loaded disk partitions too will look odd to you. Now if you directly run the virtualizor installation script then…
SMTP Authenticated email using Python script
System administrators generally use the sendmail or mail utility from mailx to send emails. Which automatically send the email from username@hostname. But there are times when you want to send…
dovecot: auth: Error: Cpanel::MailAuth: Failed to getpwnam
If you are not able to access email even with correct username and password and you see below error in the /var/log/maillog Jul 5 18:15:20 hostname dovecot: auth: Error: Cpanel::MailAuth:…
Blank email after WHMCS upgrade to version 5.3.7
On May 13th, 2014 WHMCS released new upgrade to version 5.3.7. And we have upgraded it on lots of sites during the past month. But there was bug in the…
ModSecurity: Multipart parsing error: Multipart: Failed to create file: /root/tmp/
We rebuild the Apache with modsecurity 2.7.3 on one of the server. But for some reason all file uploads to the server started failing with "500 Internal Server Error". And…
FTP issue after Plesk upgrade to version 12
We had recently upgraded plesk to version 12 on one of the server and it showed warning that ftp service will not work unless IPV6 is enabled on the server.…