TNT - Tips & Tricks

From within the Ubuntu virtual machine, open Terminal sudo vim /etc/default/grub Find GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" Append that to the end of the line "video=hyperv_fb:[specify resolution, e.g. 1024x768]" For example: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=hyperv_fb:1024x768" Save changes and exit Run the following command: sudo update-grub Restart the VM

When you view a file it has a link to the "raw" version. Click copy URL, in terminal wget (paste):  

Mapserver install on Ubuntu 18.04 with Naviserver: I assume you have already installed Naviserver, PostgreSQL and PostGIS. Update apt-get apt-get update Install dependencies: apt-get install libprotobuf-c-dev apt-get install protobuf-c-compiler apt-get install libjpeg-dev apt-get install libfreetype6 apt-get install libfreetype6-dev apt-get install libproj-dev apt-get install libfribidi-dev apt-get install libharfbuzz-dev apt-get install libcairo2-dev apt-get install libgeos-dev apt-get install libgdal-dev apt-get install libpixman-1-dev apt-get install libfcgi-dev Download Mapserver from http://download.osgeo.org/mapserver/mapserver-7.4.1.tar.gz Extract tar to some directory, create build directory and run from build cmake -DCMAKE_INSTALL_PREFIX=/opt/mapserver --DWITH_WITH_KML=ON -DWITH_CLIENT_WFS=ON -DWITH_CLIENT_WMS=ON -DWITH_SOS=ON --DWITH_WITH_XMLMAPFILE=ON ../ It will build and install Mapserver into /opt/mapserver

As always Ubuntu managed to f**k up the system. So every time you reboot system it rewrites /etc/resolve.conf with dummy config Solution: sudo apt-get purge resolvconf sudo unlink /etc/resolv.conf sudo touch /etc/resolv.conf vim /etc/resolv.conf reboot

Function to normalize url link, substitute special characters in link: CREATE OR REPLACE FUNCTION urlencode( p_str in varchar2 ) return varchar2 AS     l_tmp varchar2(12000);     l_len number default length(p_str);     l_bad varchar2(100) default ' >%}\~];?@&<#{|^[`/:=$+''"' || chr(10);     l_char char(1); BEGIN     IF ( p_str is NULL ) then         RETURN NULL;     END IF;     FOR i IN 1 .. l_len LOOP         l_char := substr(p_str,i,1);         IF ( instr( l_bad, l_char ) > 0 )         THEN             l_tmp := l_tmp || '%' || to_char(ascii(l_char), 'fm0X');         ELSE             l_tmp := l_tmp || l_char;         END IF;     END LOOP; RETURN l_tmp; END; Example: SET ...

Check if  UTL_HTTP  exists: I have seen on the internet someone complain about not existing "UTL_HTTP" SELECT * FROM dba_objects WHERE object_name='UTL_HTTP' Login do sqlplus: sys as sysdba Grant execute to user, in my case im using system user (I know bad idea): GRANT EXECUTE ON SYS.UTL_HTTP TO system; Create ACL, you need this if yo are using 11g or up: pay attention to principal it has to be UPPERCASE, if not it will give you "ORA-44416 Unresolved Principal" error BEGIN DBMS_NETWORK_ACL_ADMIN.create_acl( acl => 'http_connect.xml', description => 'ACL that lets me talk to the my web server', principal => 'SYSTEM', is_grant => TRUE, privilege => 'connect' ); DBMS_NETWORK_ACL_ADMIN.assign_acl( acl => 'http_connect.xml', HOST => 'maks.tk', lower_port =...

List all certificates: sudo certbot certificates Create wildcard certificate for domain example.com:  sudo certbot certonly --manual --preferred-challenges dns --server https://acme-v02.api.letsencrypt.org/directory --manual-public-ip-logging-ok -d '*.example.com' -d <example.com> Delete certificate:  sudo certbot delete Get certificate with HTTP challenge, From root folder .well-known/acme-challenge/[Some randome filename from lets encrypt]  certbot certonly --manual --preferred-challenges http --email youremail@mail.com -d example.com -d example.org