how to allow non root user to create tun devices

I am developing a program which requires opening /dev/net/tun and issuing ioctl() on it but without root user I get permission denied. I think proper udev rules can help solve this issue. I tried creating a new udev rule in the file /etc/udev/rules.d/my_net_tun.rules with the rule KERNEL==”tun”, MODE=”0666″, SYMLINK+=”static_node=net/tun” and then reloaded the udev rules…

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Is there a way to deploy a contract using bytecode only (to Ropsten …)?

One solution on medium.com describes how to do that via myetherwallet but it’s the old verion of myetherwallet where you can switch between ropsten/mainnet – right now I can’t find how to switch to ropsten… I’ve deployed on ropsten with both remix and truffle but both required .sol solidity sourcecode and not bytecode? Thanx!

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