Trying to start an ssh server. When you encounter this error: # /usr/sbin/sshd Could not load host key: /etc/ssh/ssh_host_rsa_key Could not load host key: /etc/ssh/ssh_host_dsa_key Here is the solution: ssh-keygen -A IfRead More…
Data space conversion using exponents
There are 2 types of data size units. The base 2 sizes and the base 10 sizes. Most systems use base 2 sizes. Base 10 sizes are only really shown on driveRead More…
Winbindd exceeding 200 client connections
The default is 200 The fix is to put this in your samba configs: winbind max clients = 3000 The fix is also explained here: https://access.redhat.com/solutions/53557 The end
Testing Samba / SMB / CIFS Connections with Linux
smbclient is the command that we want to use for testing ## smbclient comes with the smbclient package which smbclient # /usr/bin/smbclient dpkg -S /usr/bin/smbclient # smbclient: /usr/bin/smbclient First get the shareRead More…
Bash – One Time Temporary Functions – great for copy pasteable commands
By example I will show you Bash One Time Temporary Functions (I’m not sure if they existed before me, if not, I just invented them) or simply Temp Functions. Take that circleRead More…
SSH client – console & escape commands – start tunneling/forward within a running session
If you forgot to put in your string of -L and -R and -D port forwards with ssh: ie: ssh -L 54321:localhost:443 root@mysshserver.com . Dont worry, you can launch them while your inRead More…
Bash trick – dont run script/program if its running (without using pid lock files)
This can be achieved with pid files. Example: http://candrews.integralblue.com/2009/02/one-instance-at-a-time-with-pid-file-in-bash/ Another clever way is to look thru the processes list (if your allowed to look thru all user – if not then either wayRead More…
Searching Source Code with GREP or ACK
Articles to check out: * https://www.digitalocean.com/community/tutorials/how-to-install-and-use-ack-a-grep-replacement-for-developers-on-ubuntu-14-04 * http://beyondgrep.com/why-ack/ * http://readwrite.com/2010/11/10/how-to-search-your-source-with GREP (rinIE) or EGREP (rinI) the all round search utility grep -rinIE "match word" /folder grep -rinIE "match word" /folder egrep -rinIRead More…
How to copy / migrate your repo from Github.com to a personal git / github
Imagine your working on a project on github.com and then you want to move that project over to another git server (imagine its another github server, thats not hosted on github.com, butRead More…
International Phone Number Dialing 101 – How To
Imagine you have to dial the international phone number shown below. How would you do it? Considering you can place internation calls (i.e. its part of the dialing plan of the phone your using)Read More…