If you have a lot of files (several TB) on a Linux server, and you want to synchronize them daily to a local USB disc, you can use Cygwin rsync for the job. First you need to install Cygwin on your Windows computer: https://www.cygwin.com/ Then start up a CMD on your windows computer, and type: rsync […]
In Yerevan we had a workshop in Oral Pathology where I presented both Cytomine and Moodle with video tutorials made by Anne C. Johannsessen:
We have a collaborating project between Norway, Moldova, Armenia and Belarus in Oral Pathology. In order to view slides online we installed a software called Cytomine. This software, or multiple combined software/applications, is developed in Belgium by a cooperating team. All about Cytomine can be read here: https://cytomine.coop/ This is an open source software. It is […]
How Open Source Approach is Impacting Science
In Apache one specify the servername and serveralias in a virtualhost directive in possible a single .conf file. We had an Apache webserver with hundreds of such .conf files. With this bash one-liner you can find all ServerName and ServerAlias’s: cd /etc/httpd/vhosts.d/ ; find . -type f | xargs egrep -i ‘servername|serveralias’ | awk {‘print […]
I had 70 different domain names that I need to add in a ssl cnf file for creating a certificate request. The 70 different domain names was in a text file, one per line: domainname1.something.com domainname2.somehing.com … In order to create the alternative names list, I used this bash oneliner: teller=1; for i in cat […]
Got a tip from my colleague JB! Want to refresh your terminal? Is it spring and time to freshen things up? Look at: http://ohmyz.sh/ Easy to install on Redhat: yum -y install zsh sh -c “$(wget https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)” Result in my Putty in Windows 7:
On Redhat 5 and 6 we could empty the ldap cache with this command: nscd -i group and nscd -i netgroup But in Redhat 7 this doesn’t work. Instead one have to run this command: sss_cache -E here is more about sss_cache from Redhat: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/sssd-cache
By my colleague Lennart: Fast and free HTTPS supported sites with Caddy (web)server with proxy to docker container HowTo
We wanted to run a script every last Friday of the month. The script was set to remind people about certain issues. Friday is a nice day to be reminded of things, right? Anyway, by putting this in the /etc/crontab file, one can achieve the request: 59 11 * * 5 username [ $(date +”\%m”) […]
I installed a program called MailStore Home program on my Windows computer. With this program you can connect it to all your email accounts, and it will download everything, index it and compress it. In my case I have around 100 000 emails spread on 3 email accounts. When I have to find an old […]
Sometime yum update just breaks everything. We experienced this, and had to go backup to previous versions. In RHEL6 and RHEL7 you can run this command:
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yum history list all |
which will give you a list of transactions ID’s. Now you just need to figure out how far you want to go back in the history, and do […]