More detailed information on what and how the attack works is here I will focus only on fixing the problem. On RHEL server 5.x and 6.x the easy way is to simply disable SSL compression. In newer Apache versions this […]
Pass-the-hash from memory
This is the most impressive and scariest hack I ever seen. The tool called WCE, Windows Credential Editor can get any password from a Windows box, from memory! So even if you login in the server 3months ago, the hack […]
reset redhat 5 password
reset redhat 5 password +boot When you lost your root password in a RedHat Linux Based systems you should first have access to the console, (the machine itself). Power on, or reboot as needed. and as soon as you get […]
How to Install iftop
How to Install iftop on RedHat 6 64 bits, CentOS. iftop is a very very cool tool. It displays what connections are made and their usage etc… Script to Install #!/bin/bash #Install iftop RedHat 6 #by Felipe Ferreira http://felipeferreira.netconf July/2011 […]
How to setup sshguard
How to setup sshguard Using Iptables and centos or redhat (another option is to use fail2ban, checkout my howto here ) 1.Download sshguard source and compile it (could also try yum install sshguard) # wget http://downloads.sourceforge.net/project/sshguard/sshguard/sshguard-1.5/sshguard-1.5.tar.bz2 Other downloads from here […]
NETFILTER PACKET FLOW
NETFILTER PACKET FLOW (kernel): DROP will not warn REJECT will let them know its closed example: (RULE CHECK CHAIN) (THE RULE, WHAT TO DO) iptables -t filter -A INPUT -s 192.168.0.1 -j DROP Notes: The default for -t is filter […]
NTFS ACL Behaviour
NTFS ACL Behaviour If propagate from parent is checked the original folder permissions will totally be replaced by the new parent settings. example: Directory c:tempjoe permissions: joe RW , smith R Copid to c:tempnew already set permissions: joe R, smith […]