摘要：most common cases: Very important knowledge: -sS: default if using root/admin with nmap (Syn scan) -sT: default if using normal user with nmap (TCP co 阅读全文

摘要：before talking about Makefiles, compilers are important pre-knowledge. first compile a executable ELF file, by: if we are going to compile one/several 阅读全文

摘要：Find the authoritative server of a domain, by: find actual IP of a sub-domain, by: What is authoritative server of dns? [Quote]An authoritative name s 阅读全文

摘要：hmap usage: in include/openvswitch/shash.h, we have: at first glance, it is a hmap encapsulated in shash. In case we forget what is a hmap: Obviously, 阅读全文

摘要：if using dpdk, then OvS' datapath folder is ignored. Only OvS' userspace code are in use. According to manpages of ovs-vsctl/ovs-dpctl, it says that t 阅读全文

摘要：In short, we have some sort of algorithms to gen pair of private and public keys. The public key is stored in a certificate and the private key is usu 阅读全文

摘要：First, ensure that the computer/sbc has WI-FI parts. install wpa_supplicant, edit /etc/wpa_supplicant/wpa_supplicant.conf, with ssid & psk. Then run w 阅读全文

摘要：Previously in windows, I uses ramdisk, to accelerate chrome browsing. However, in linux, this is made possible by tmpfs/ramfs already by default. Also 阅读全文

摘要：To make samba shard folder permission clear, there are 3 kind of permission need to be paid attention: 1. permission written in /etc/samba/smb.conf of 阅读全文

摘要：when ping, specifying the length of the packet by: Actually default is -l 32, so if we omit the last option, the sent packets are the same. This packe 阅读全文

摘要：before anything.. sizeof is an operand! sizeof is an operand! sizeof is an operand! 重要なことは三回にしませんね！ int *ptr; sizeof *ptr; = sizeof (int); the followi 阅读全文

摘要：Install docker from official site, in windows. or install docker from repo as official site told, in linux.. after installation, we run by: (windows s 阅读全文

摘要：This file includes 4 data-structures.. Insteresting because they are written in 1994.. to make it easier using the structures.. LIST: the common usage 阅读全文

摘要：Sometimes running program in Unix will fail without any debugging info or warnings because of the laziness of programmer.. So if need to find the righ 阅读全文

摘要：The most seen assertion are during runtime, but this one is at compile time, to give the error more quickly.. I do not quite understand why need this 阅读全文

摘要：get the grpc source file.. compile the helloworld example.. is easy.. the most important is to write the server/client side .go files and one message/ 阅读全文

摘要：Actually I do not have experiences in programming with open sources/third party libs.. in linux.. I think this took me almost 3 days to figure out how 阅读全文

摘要：this passage is referenced, appreciated. ZooKeeper installation: to share my_data between clients.. create /zk_test my_dataget /zk_testdelete /zk_test 阅读全文

摘要：API defines the programning language and function entry point, arguments type, order. ABI defines the programming compiled version to be according to 阅读全文

摘要：/* Defines COUNTER. There must be exactly one such definition at file scope * within a program. */ #define COVERAGE_DEFINE(COUNTER) \ DEFINE_STATIC_PE... 阅读全文