MacPorts xcodebuild error



Error messages:

Warning: xcodebuild exists but failed to execute

Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option

Warning: Xcode does not appear to be installed; most ports will likely fail to build.

Solution:



MacPorts xcodebuild error by @sskaje: https://sskaje.me/2019/08/macports-xcodebuild-error/

kexec 更新Linux内核

线上的CentOS7,没有跑什么服务,但是挂了个wireguard,用来解决内网服务器访问外网的需求

更新CentOS 7的时候发现现有内核版本太老了,wireguard出了点错,手工dkms:

所以想更新一下内核。

没有找到靠谱的hot upgrade,所以试了试 kexec,参考 Kernel patching with kexec: updating a CentOS 7 kernel without a full reboot

执行完,ssh就断了,然后过了一会儿就ping通了,好像没比reboot快多少。

kexec 更新Linux内核 by @sskaje: https://sskaje.me/2018/06/kexec-upgrade-linux-kernel/

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iOS AppStore in-App Purchase Hack

之前写了个mac版本 MacAppStore in-App Purchase Hack,总共就没几个app好使。

找了个越狱的iOS 10.2,自己从头开始写工具,搞定了一个app的破解。

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iOS AppStore in-App Purchase Hack by @sskaje: https://sskaje.me/2017/08/ios-appstore-in-app-purchase-hack/

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