2018/10/16
1. The Key to Becoming a Software Consultant https://daedtech.com/key-becoming-software-consultant/ But, to achieve your objective, you need to position yourself as an actual consultant, getting paid for advice. He talks about…
Do not buy a Huawei phone
Source: https://threader.app/thread/1051204370543648770 THREAD: I’m looking at a Huawei P20 from China, let see what can I found The 1st app I reversed is an app called Decision Look at the…
Why Nobody Understands Blockchain
Source: https://patrickmn.com/security/why-blockchain-is-so-hard-to-understand/ One of the biggest problem with blockchain (“crypto”) seems to be that nobody really understands it. We’ve all heard the explanation that you have blocks, and transactions go…
CentOS7 issues and resolutions
update openssl http://www.voidcn.com/article/p-afycxhtw-bpb.html install vsftpd https://www.liquidweb.com/kb/how-to-install-and-configure-vsftpd-on-centos-7/ fix vsftpd Fixing 500 OOPS: vsftpd: refusing to run with writable root inside chroot ()
Calculating longitude length in miles?
https://gis.stackexchange.com/questions/142326/calculating-longitude-length-in-miles It doesn’t matter at what longitude you are. What matters is what latitude you are. Length of 1 degree of Longitude = cosine (latitude in decimal degrees) * length…
Left join and Left outer join in SQL Server
http://stackoverflow.com/questions/406294/left-join-and-left-outer-join-in-sql-server As per the documentation: FROM (Transact-SQL): <join_type> ::= } } ] JOIN The keyword OUTER is marked as optional (enclosed in square brackets), and what this means in this…
What is the difference between UNION and UNION ALL.
http://stackoverflow.com/questions/49925/what-is-the-difference-between-union-and-union-all UNION removes duplicate records (where all columns in the results are the same), UNION ALL does not. There is a performance hit when using UNION vs UNION ALL, since…
Send SMTP email using System.Net.Mail via Exchange Online (Office 365)
http://stackoverflow.com/questions/6244694/send-smtp-email-using-system-net-mail-via-exchange-online-office-365 MailMessage msg = new MailMessage(); msg.To.Add(new MailAddress("someone@somedomain.com", "SomeOne")); msg.From = new MailAddress("you@yourdomain.com", "You"); msg.Subject = "This is a Test Mail"; msg.Body = "This is a test message using Exchange…
What’s the difference between unicode and utf8?
http://stackoverflow.com/questions/3951722/whats-the-difference-between-unicode-and-utf8 This is an unfortunate misnaming perpetrated by Windows. Because Windows uses UTF-16LE encoding internally as the memory storage format for Unicode strings, it considers this to be the natural…
Call vs Start
http://stackoverflow.com/questions/13257571/call-command-vs-start-with-wait-option For exe files, I suppose the differences are nearly unimportant. But to start an exe you don’t even need CALL. When starting another batch it’s a big difference, as…