Update demonotes.md

demonotes.md

@@ -20,10 +20,22 @@ live demo dnsdist: bacon.dnsheads.ch
   * dnsdist : http://bacon.dnsheads.ch:8053
   * recursor: http://bacon.dnsheads.ch:8054
 
-## Tooling setup
+## Tooling setup 
 
+on servers for local testing:
 `yum install -y knot-utils bind-utils`
 
+on local docker vm including sdig:
+
+``` 
+docker run --rm -ti centos:7 /bin/bash
+
+yum install -y epel-release yum-plugin-priorities && \
+curl -o /etc/yum.repos.d/powerdns-auth-42.repo \
+https://repo.powerdns.com/repo-files/centos-auth-42.repo && \
+yum install -y pdns-tools knot-utils bind-utils
+```
+
 
 ## Resolver setup
 
@@ -150,10 +162,7 @@ addDOHLocal('0.0.0.0','/etc/dnsdist/dnsdist.pem', '/etc/dnsdist/dnsdist.key',{'/
 ```
 
 ```
-yum install epel-release yum-plugin-priorities && \
-curl -o /etc/yum.repos.d/powerdns-auth-42.repo \
-https://repo.powerdns.com/repo-files/centos-auth-42.repo && \
-yum install pdns-tools -y
+sdig https://bacon.dnsheads.ch/ 443 switch.ch ns
 
 sdig https://dohrestest.dnsheads.ch/ 443 switch.ch ns
 ```