Archive for August, 2011

How to mitigate DDOS ?

Getting DDOS from rival companies ?

Even we had but we do have a tachnique to mitigate its impact

Use the below IPTABLES rule on your server and it should get mitigated

A INPUT -p tcp –dport 80 -i eth0 -m state –state NEW -m recent –set
/sbin/iptables -A INPUT -p tcp –dport 80 -i eth0 -m state –state NEW -m recent –update –seconds 8 –hitcount 13 -j DROP

You can contact us for any assistance for any issues related to Linux.

 

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vzquota on failed [3]

“vzquota on failed [3]”

vzquota : (error) Quota on syscall for id 8001: No such file or directory
vzquota on failed [3]

Getting above error in openvz vps ?

This is due to disk quota being on in config file.

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Login to main hardware node

open below config file associated with VPS  whre my  VPSID is 8001

vi /etc/sysconfig/vz-scripts/8001.conf

Add below line in config file

DISK_QUOTA=no

Now restart vps and all should work as charm
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