All posts by Bob

Linux

Configure Exim mail server on Debian

Verified on Debian 8 (Wheezy). apt-get install exim4 To support recent IOS devices you need to generate a 2048-bit SSL certificate. Add TCP port 587 to the listening ports by editing /etc/default/exim4. To support local account authentication for SMTP over SSL submission port 587 uncomment out the sslauthd section (ref: https://wiki.debian.org/Exim). Exim defaults to IPv6 before … Continue reading Configure Exim mail server on Debian →

Linux

Run your own DynDNS server on Debian Linux

This outline assumes you own your own domain and manage the DNS servers running Debian Wheezy or Jessie with: bind9 for DNSlighttp for webserverphp5apt-get install bind9 – configure your zone. apt-get install lighttp php5-cgi Configure SSL: lighty-enable-mod ssl openssl … Configure authentication: lighty-enable-mod auth echo username:realm:`md5sum password | cut -b -32` >> /etc/lighttpd/.htpasswd/htdigest.userEnable PHP: lighty-enable-mod fastcgi lighty-enable-mod fastcgi-php Configure Virtual Hosting: lighty-enable-mod simple-vhost mkdir … Continue reading Run your own DynDNS server on Debian Linux →

Windows

Automate PDF printing from batch file command line

Adobe Reader is not suitable for printing PDF files using a batch file because it remains open after the print is done and there is no simple, safe & reliable mechanism to close it.  Instead use Ghostscript commandline as shown below: gswin32c -dPrinted -dBATCH -dNOPAUSE -dNOSAFER -q -dNumCopies=1 “C:\test.pdf” *Must be a recent version of … Continue reading Automate PDF printing from batch file command line →

Linux

Linux route add

Syntax for adding a route in Linux: route add -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.2 List routes: netstat -rn Delete route: route delete net 192.168.2.0 Add static route: nano /etc/network/interfacespost-up route add -net 192.168.2.0/24 gw 192.168.1.2 dev eth1pre-down route delete -net 192.168.2.0/16 gw 192.168.1.2 Add/Change default gateway: ip route add default via 192.168.1.254

Networking

Draytek 2700G DNS suffix

On Draytek 2700G ADSL router to add a DNS suffix to the DHCP server use the following command in a telnet session to the router: >sys domainname mydomain.local You can also define a hostname for the router, e.g.: >sys name gw.mydomain.local The changes save automatically.

Apple

Routesplit on MacOS 10.x

The routesplit tool fails to make routes permanent on Snow Leopard and later versions of OSX.  To work around the issue edit the following file as such: /Library/LaunchDaemons/net.routes.static.plist…<key>ServiceDescription</key><string>Install static routes</string><key>WatchPaths</key><array> <string>/Library/Preferences/SystemConfiguration</string></array>…

Linux, Virtualization

Copy disk images for Vmware, KVM, etc.

(Ref: Elvis, http://forums.overclockers.com.au/showthread.php?t=933797) These instructions can be used to copy full disk images over a network, including from or to physical and/or virtual machines. Because it is a bit-by-bit copy of the disk the process is independent of the file system or partition type, but there must be sufficient space on the destination disk. Individual partitions … Continue reading Copy disk images for Vmware, KVM, etc. →