Linux




Solaris interfaces – create assign delete

Working with interfaces in Solaris is pretty much the same as in Linux - you've got ifconfig, netstat,route. It looks in output a bit different but if you're used to the *BSD way of things you'll find yourself at home. So the most basic thing follows - bring interface up, assign …



How to choose the password that noone can guess and you cant remember

Of course you know what the good password should be - random letters including capitals, peppered with numbers and enhanced with printable control characters. The only problem with these recommendations is that there are very few people in the world that can memorize such incomprehensible sequence of chars. So if someone …



Top 10 usernames used in SSH brute force

As a follow up to yesterday's post I thought it would be interesting to know statistics of the usernames used in those brute force probes. Find below awk/sed script to get usernames for failed ssh login attempts from OpenSSH daemon and sort it for statistics. Also I attach the …



SSH brute force is on the rise, awk script to count failed SSH attempts

SSH brute forcing is still in high demand. I have , for my own testing and pleasure, virtual servers scattered around the world. All of them being of the Linux/BSD family I manage by SSH. Also I have on purpose no static IP at home for various reasons (saving me …



Configure VLAN Solaris way

To create VLAN in Solaris you have to first decide where the Physical Point of Attachment (PPA) will be. In other words you have to attach VLAN to some physical interface on the server , as of now interface types that support VLANs are: - ce - bge - xge - e1000g After you decided …



md5 and sha1 hashing in Solaris

How do you calculate md5 hash ? md5sum of course, I thought ,coming from the Linux world and was wrong. In Solaris , again, all that comes from the open source projects is add-at-your-own-risk paradigm. Instead, the native crypto provider supplies hash calculations with the digest command: # digest -l sha1 md5 sha256 …



Encrypting local files in Solaris

How do I encrypt local file in Solaris ? On Linux I use either OpenSSL or GPG but these are both open source projects not native in the Solaris land. For this Solaris has encrypt/decrypt tools which do what their name say. And of course we talk here about symmetric …



Solaris – configure ftp server

SUN Solaris FTP SUN Solaris comes with ftp daemon based on WU-FTPd Washington University project. While not being very enthusiastic about its vulnerabilities discovered over the years and being rather abandoned by its developers ,still, it comes installed by default and as long as Sun ok with that it is …



Scan of the week – scan by country scan by continent

Dis+claimer - all this stuff I bring to your attention is for educational purposes only, and what may be fine and ok here and for me can easily get you somewhere else in trouble so use your discretion here . Happy scanning. "...Don't know much about geography" as the song goes …



Ping – setting don't fragment bit in Linux/Windows/FreeBSD/Solaris/Cisco/Juniper

Linux Windows FreeBSD Solaris CISCO routers (IOS) Juniper routers (JunOS) Ping. Many times while debugging network problems of various kinds you need to send some packets of desirable size and don’t fragment bit being set. I list below how to do it for the different equipment/OSes. Let’s …