Oct 20
Problem :- If you are facing similar error while configuring ssl on nginx server. below solution would be useful to solve it.
no "ssl_certificate" is defined in server listening on SSL port while SSL handshaking, client: xxx.xxx.xxx.xxx, server: 0.0.0.0:443
Solution:-
you should need to add following to nginx server block
listen 443 default_server ssl;
example:-
server {
#Some configuration
listen 443 default_server ssl;
#Some configuration
}
Jun 23
This tutorial guides you how to install multi core Solr on Ubuntu. I found this installation quite difficult because of lack of documentation. I did google research and found few useful documents. It can be found at the end of this tutorial under reference section.
Pre requirements for solr :-
solr environment :-
https://lucene.apache.org/solr/downloads.html
tar -xvf solr-4.8.1.tgz cp -R solr-4.8.1/example /opt/solr
vim /etc/default/jetty
#here use multi core JAVA_OPTIONS="-Dsolr.solr.home=/opt/solr/multicore $JAVA_OPTIONS"; JETTY_HOME=/opt/solr JETTY_LOGS=/opt/solr/logs JETTY_USER=solr # Use 0.0.0.0 as host to accept all connections. (restrict it only to localhost by adding 127.0.0.1 ) #here jetty was deployed on remote server JETTY_HOST=0.0.0.0
sudo useradd -d /opt/solr -s /sbin/false solr sudo chown solr:solr -R /opt/solr
sudo wget -O /etc/init.d/jetty http://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk/jetty-distribution/src/main/resources/bin/jetty.sh sudo chmod a+x /etc/init.d/jetty sudo update-rc.d jetty defaults
sudo /etc/init.d/jetty start
http://:8983/solr
Add new core/Multicore
cd /opt/solr/multicore sudo mkdir testcore sudo mkdir testcore/data cp -R core0/conf testcore
sudo chown -R solr:solr testcore
go to solr home page
http://:8983/solr
Fill the pop up with the appropriate information
configure multicore on solr
After creating multi core named “testcore”
solr multicore
Add following line to multicore/solr.xml file to make visible the new core after jetty restart. Otherwise every time you are to add new cores once the jetty restarts. It is painful.
<core name="testcore" instanceDir="testcore">;
Following lines are already added to multicore/solr.xml for default cores
<core name="core0" instanceDir="core0"> <core name="core1" instanceDir="core1">
Secure the Solr
How to secure the Solr running on jetty or any other servlet container, can be found from here
Reference
1) https://www.digitalocean.com/community/tutorials/how-to-install-solr-on-ubuntu-14-04
2) http://docs.ckan.org/en/latest/maintaining/solr-multicore.html
3) https://cwiki.apache.org/confluence/display/solr/Moving+to+the+New+solr.xml+Format
May 31
In this article, we are going to look at way to sending a file as an email attachment using mutt command on Linux environment. There are many options and commands are available on Linux, but in here, mutt command is used. It is very simple than you are thinking. Try below shell script for that. You are to change email address and location of the attachment accordingly.
#!/bin/bash FROM_ADDRESS="From address <from@abc.com>" TO_MAIL=to@abc.com echo "" > $emailPath echo "This is message body" >> $emailPath echo "" >> $emailPath echo "more message body" >> $emailPath export EMAIL=$FROM_ADDRESS && mutt -a /report/location/testreport.csv -s "This is Email Title" $TO_MAIL < $emailPath