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CATEGORY ARCHIVE

Computer Security.

Practical knowledge, one discovery at a time.

18 ARTICLES

Privacy – Carrier IQ fallout

According to its website, Carrier IQ claims that its software is deployed in more than 141 millions handsets. Many of the major carriers and handset makers preinstal

·1 min read↗

Unblocking a host

Is your firewall blocking connection from a host and still you want to unblock the IP address of the remote host? Here is one way of doing it:

·1 min read↗

Block a host

Normally if you want to block all requests to and from an IP address, iptables is an ideal solution. A rule similar to this one would be handy

·1 min read↗

Handy commands

-List files opened by a program listening on a certain port (lsof -i:port)

·1 min read↗

Configuring proftpd behind NAT

If your ftp server is behind a NAT router, the regular ftps configuration steps you find in most tutorials in the Internet may not work for you. Hope these steps hel

·1 min read↗

Changing passphrase of a private key

It is not advisable to use password based login for ssh any more. One of the most secure ways of remote login through ssh is to use public key authentication. But in

·1 min read↗

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