linux: restrict internet access to processes
to run programs with restricted internet access do the following $ unshare -r -n ping 127.0.0.1 source: link
Recent Posts
Update local git clone: new TAGS
When you have a local clone of a remote repository and want to update it: pulling will not get all the new tags... run the following [code language="bash" co...
Synology: SEC_ERROR_REVOKED_CERTIFICATE
updating your synology to DSM6.2.2 will lead to a certificate error. it cannot renew the letsencrypt certificate anymore. current workaround: pre: ports 80,...
Arch: find package for specific command
The problem is: How do you find the package for a given command? Two solutions are presented. Use the program pkgfile. Use pacman. Update database: $ sudo...
ssh config: include multiple files
it is useful to split up the ssh config file. do as follows create config folder $ mkdir ~/.ssh/config.d create multiple config files in that folder (I grou...