My own server is daily attacked by SSH scanner and bruteforce scripts. My fail2ban solution But as I get hammered by China’s ssh I got tired of it and block all China SSH access using iptables. The concept is simples, […]
Alert correlation: Why it matters and best practices to implement
Times are changing in the IT world: the most popular monitoring stacks now consist of about six to eight tools, and generally include at least one from each of the following, plus other specialized or custom tools: an open source […]
apache tuneup
Apache Tune Up I was able to do about 4K concurrent connections with this setup. Using Centos 6.7 64bit Apache httpd-2.2.15-47.el6.centos.x86_64 a Virtual Machine 4x CPU’s and 4GBs of memory, I have 2 disks, one for /var and other for […]
script to check aws status
This is a bash script made to work with nagios and to automaticly check Amazon AWS status based on the RSS from http://status.aws.amazon.com/ I did find something similar in Ruby I tried to keep it simple as possible… Here is […]
How to mount xfs
How to mount xfs #Find the new disk fdisk -l #Create the partition ( n,1,w) fdisk /dev/xvdf #Needed yum install xfsprogs.x86_64 xfsdump-3.1.3-5.7.amzn1.x86_64 #Make the files system mkfs.xfs -f /dev/xvdf #Prepare the mountpoint mv /opt/ /opt2/ mkdir /opt #Mount it mount […]
Setup AWS S3 Policy
S3 is a great place to keep logs data or even backups. Monthly Basic cost: S3 U$ 0.02 p/ GB (with Reduce Redundancy). Glacier only U$ 0.01 p/ GB For more detail use the AWS Calculator http://calculator.s3.amazonaws.com/index.html I currently send […]