Wonder what to do with these old monitors in the basement ?
Here is an idea 😉
Posts Tagged ‘idea’
An Idea – How to put your old CRT Monitors in use ;)
Friday, June 24th, 2011Tags: basement, CRT, crt monitors, idea, Monitors, use, Wonder
Posted in Entertainment | No Comments »
How to disable annoying facebook mail notifications
Thursday, May 5th, 2011Though I really hate facebook, I was asked today by a friend who is not really into computers to disable, mail notification for him.
The mail notification, annoying feature is one of the stupidest idea someone ever had, as very active facebook users had their inbox totally spammed like with messages from facebook …
Anyways, here is how I removed the facebook email notification
1. Login to facebook
2. Go to Account Settings and click on notifications and then uncheck the option, e.g.:
Account Settigns -> Profile Settings -> Messages
There are a number of messages that facebook by default sents, so in order to remove the mail notification messages I scrolled down and unchecked all related to facebook email notification.
Tags: Account, annoying feature, Click, default, email, facebook, feature, idea, inbox, login, mail, mail notification, mail notifications, MessagesThere, notification, notification messages, number, order, Profile, profile settings, Settigns, Settings, someone, today, uncheck
Posted in Various | 8 Comments »
Few sshd server Security Tips that will improve your server security
Monday, May 2nd, 2011On each and every newly installed Linux or FreeBSD server. I’m always very cautious about three configuration directives for the ssh server.
This are X11Forwarding , Protocol and PermitRootLogin
One needs to be very watchful about this three ones, as tuning the right values surely prevents the server from many of the security issues that might rise up with the SSH server.
Many Linuxes like Debian and Ubuntu comes with X11Forwarding yes e.g. (X11Forwarding) enabled by default, this is an useless option in most of the cases as the servers I do administrate does not run a X environment.
Some older Linux distributions I have dealt with has the ssh Protocol 1 enabled by default and therefore, whether I do inherit an old server I have to start administrating the first thing I do is to check if the /etc/ssh/sshd_config‘s Protocol 1 option is enabled and if it is enabled I disable it.
PermitRootLogin is also an option which I often turn off as logging in via remote ssh is potentially dangerous as root password might get sniffed.
In overall the 3 sshd option’s I do check out in /etc/sshd/sshd_config on each newly installed Linux server are:
X11Forwarding yes
PermitRootLogin yes
Protocol 1
I always change this three options in my /etc/sshd/sshd_config
to:
X11Forwarding no
PermitRootLogin no
Protocol 2
One other options sshd server options which is good to be tuned is:
LoginGraceTime 120
Decreasing it to:
LoginGraceTime 60
is generally a good idea.
Of course after the changes I do restart the ssh daemon in order for the new configuration to take place:
linux:~# /etc/init.d/sshd restart
...
Tags: administrate, config, configuration directives, course, Debian, Forwarding, freebsd, idea, init, Linux, linux distributions, linuxes, noProtocol, old server, option, order, password, PermitRootLogin, PermitRootLoginOne, place, Protocol, root, root password, security, security issues, security tips, server options, server security, servers, ssh, ssh daemon, ssh protocol, ssh server, sshd server, Ubuntu, yesPermitRootLogin
Posted in FreeBSD, Linux, System Administration | No Comments »