Tell us about the & quot; + & quot; in email?

One client claims that this is a normal box: [email protected] I, of course, understand that it is somewhere out there in the RFC, but for the first time I meet it. In few places, such a format is generally skipped, including on my sites ... P.S. It seems, on Habré wrote about this, but could not find anything: ( Read more

Standard for automated responses of mail servers

I scrolled through the list of RFCs on this topic, but I can’t pick out the essence. What information about the sent letter can be obtained from the automatic response of the server in case of failure to send a letter and which document defines it? Read more

Websockets: where does it work?

I now want to start implementing some software that should work with browser-server streams. I want to understand where RFC-6455 works now. Wikipedia has conflicting information. The Russian article says that support is enabled by default only in Chrome; Firefox and Opera by default disable websockets support due to security issues. The English wiki says that Firefox turned off support for websockets only in versions 4-5, which is indirectly confirmed by the Firefox 10 test on page WebsocketsTes... Read more

Support for DHCP Option 121 and 249 on Mac OS X

Tell me, is there support for options 121 and 249 (Classless Static Route) in DHCP and PPTP clients on Mac OS X? link link on the support of these options on the Internet, but my clients with OS X refuse to accept routes from them, although the other parameters apply and there are no problems with Windows. Read more

Unidentified encoding

Colleagues, help identify the encoding & BEQEOAQzBD0ETw- Encrypted word "Test" In this form, Domino gives IMAP folder names. Read more

Is spam sent from my domain?

There was a very big problem - spam is sent from my domain. I find out by the responses to letters and Mail Delivery reports that come to the admin mail. The username is different every time - naturally, I don’t have any real accounts. We use domain-linked Google as mail. I changed the passwords of admin hosting, site, SSH and FTP. So far, seemingly, quietly. How to determine if this is a backdoor or fake letter headers, and how to get rid of these nasty things. Thanks in advance for the ans... Read more

How to compress a string in RFC 1951?

Trying to write a client in java for my socket server in php. I use gzinflate / gzdeflate functions on the server. On the client, I used java.util.zip.Deflater, but gzinflate scolds “data error”, and gzuncompress unpacks it with a bang. All day trying to find information on DEFLATE in java, but to no avail. What should I use in order for gzinflate to unpack what I sent from the client? Read more

Bcc and Gmail smtp!?

Something in my bowler stopped cooking, apparently. There is a letter sent from the script via SMTP Google Mail. There is a Bcc heading in the letter. All of my previous experience, RFC 2822, and the title of the title itself, suggests that the recipient should not know who sent the copy. However, the header gets to the recipient safe and sound. The question arises - what a fright and how to deal with it!? Of course. The problem could be solved by abandoning Gmail smtp, but for a number of r... Read more

Extension for getters / setters?

There was an RFC to add such sugar to the syntax: class Foo { public $bar { get; set($bar) { if(!is_int($bar)) { throw new \InvalidArgumentException('Bar should be integer!'); } return $bar; } } } As far as I know it was rejected, but maybe someone created an extension on its basis? Read more

Google Chrome and Set-Cookie

Please tell me the correct HTTP format for the Set-Cookie header. rfc2109 reads:   av-pairs = av-pair *(";" av-pair) av-pair = attr ["=" value] ; optional value attr = token value = word word = token | quoted-string Sending a GET request using Google Chrome at example.com/main/about. I get the answer along with the headline:  Set-Cookie:SESSID="9l8MUBbPRhxaD2b9paYMG... Read more

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