Wikipedia:Reference desk/Archives/Computing/2016 November 6

= November 6 =

Spread test
what is spread test in mobile set? — Preceding unsigned comment added by Sandesh.Gautam sg (talk • contribs) 03:58, 6 November 2016 (UTC)
 * See Spread spectrum and Chip (CDMA). This forum thread may also be useful. Tevildo (talk) 09:58, 6 November 2016 (UTC)

Command line email clients
Hi all, I am looking for a way to do the following with a command line program on a GNU/Linux system: (The idea is to turn an ordinary email address into a "mailing list" in the dumbest possible way.) Which program would you suggest and can you point me to a tutorial that covers the necessary information? -- 77.22.215.46 (talk) 17:31, 6 November 2016 (UTC)
 * Check a certain email address every 10 minutes.
 * If there are new messages, bounce (i. e. forward without changes) them (as "blind copies") to all email addresses listed in some text file.


 * getmail or fetchmail (on a cron job) to get the mail (that's an MTA). Then as (the MDA) procmail, maildrop, or sieve to process and act on the received mail. Personally I use getmail and then an MDA I wrote myself ('cos I thought procmail's rules were naff, and I have a weakness for reinventing wheels). -- Finlay McWalter··–·Talk 18:36, 6 November 2016 (UTC)
 * Why not just use actual mailing list software? GNU Mailman can be managed entirely from the command line. --47.138.165.200 (talk) 22:00, 6 November 2016 (UTC)


 * Maybe you already know this but such a mailing list would not be a very good one if you are accepting a diverse range of senders and recipients, since it's incompatible with strict Sender Policy Framework and I believe some iterations of DMARC and possibly DKIM. Emails sent by those who's domains publish a strict SPF will be rejected by many recipients because you are not an authorised sender of emails for that domain. If you have sufficiently control of all the sender email addresses, you could either remove strict SPF on the sender domain(s) or add your remailer as an authorised sender for those domains. If you have sufficient control of all the recipient email address you could whitelist your remailer on all recipient email address. Otherwise you'll need to do more work, or alternatively use a solution like that recommended by 47 which (I assume) already has the option to deal with this in a different way e.g. Sender Rewriting Scheme  Nil Einne (talk) 02:55, 8 November 2016 (UTC)
 * P.S. I'm also assuming your talking about a very small mailing list or alternatively have a fair degree of control over your SMTP sever and that normal emails from it at least will be widely accepted. If you're just using some random SMTP server and are planning to have hundreds of recipients, the SMTP server may not allow you to send so many emails. If you're planning to set up your own SMTP server to send directly to the recipients, consider that even ignoring SPF etc issues, many mail exchangers may simply reject if they don't trust you, e.g. your IP is residential. Nil Einne (talk) 09:38, 8 November 2016 (UTC)


 * →Comparison of email clients -- Hans Haase (有问题吗) 17:22, 10 November 2016 (UTC)


 * I've done thisin the past using nothing more than sendmail and alias addresses. No cron entries needed, no real scripting needed. As I recall, the forwarding is down on-receipt and defaults to bcc. — Preceding unsigned comment added by Smarkham01 (talk • contribs) 04:17, 11 November 2016 (UTC)

Warning about secure connection on non-secure site
http://www.sunrisesunset.com is a website with a simple purpose: supply your location, and it calculates the approximate times of sunrise and sunset for that location for whenever you want. Basically, all it does is produce calendars, offer downloads of calculated information, and similar services, and there's really nothing more to it other than occasional advertising; there's nothing you can enter that would need to be encrypted, and as such, it's http and not https. To my surprise, Internet Explorer just now gave me its "Only secure content is displayed" warning that's commonly displayed when a secure site has non-secure components. Why would such a warning even "come to mind" for the browser, i.e. why would the browser even care whether information's secure when visiting a non-https site? Nyttend (talk) 22:27, 6 November 2016 (UTC)
 * There are good arguments for the mentality "everything is important enough to encrypt". Even under your assumption that confidentiality does not matter, integrity does (you wouldn't like someone else to be able to inject malicious javascript in the page you are viewing). Note that https is two-way encryption, both the communications from client to server and from server to client are (supposed to be) private.
 * Now, if IE was serious about that "only secure content is displayed" warning on a http site, it would return a blank page. Assuming that is not what happens, it looks like a misconfiguration from IE. Tigraan Click here to contact me 09:16, 7 November 2016 (UTC)

Conversion Software
An open source software able to turn any videos [clip] files into MP3, M4A, WMA, AAC, and AAC+ Formats. A “drop-down-list” to choose from for conversion purposes (e.g., like YTD software) is also desirable; more choice the better… 103.230.106.8 (talk) 22:41, 6 November 2016 (UTC)
 * You can look at FFmpeg which supports a large number of codecs and container formats. You use it with a command-line ffmpeg command. Graeme Bartlett (talk) 04:12, 7 November 2016 (UTC)

Animated wallpaper making software
Opensource software required that can create animated wallpapers with mandatory .file types. 103.230.106.8 (talk) 22:41, 6 November 2016 (UTC)