Questions tagged [protocol]
The protocol tag has no usage guidance.
49
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1
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528
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How to use IPPS with Brother printer and Mac?
I have a Brother laser printer connected to my router via ethernet cable. Within the Brother configuration web portal, I did the following:
disabled all wireless functionality on the printer
disabled ...
1
vote
0
answers
382
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Configuring Tomcat for customized protocol handler
This is on Tomcat 9.0.71.
I need to use a protocol handler of com.ibm.crypto.provider.
I set JAVA_OPTS with -Djava.protocol.handler.pkgs=com.ibm.crypto.provider but this is not sufficient. The problem ...
- 11
1
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1
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679
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Why does OpenSSH on Macos look for known hosts file twice?
Open SSH debug trace shows that ssh is looking for the known_hosts file(s) twice, once before the key exchange and once during, why is that?
I understand that as part of the key exchange ssh verifies ...
- 13
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2
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46
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website says connection insecure if typed without the protocol
I have a website and when I type the url with 'https://' the browser shows the site normally, however if I do not include 'https://' in the url, the browser brings me to a page that says my connection ...
0
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1
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4k
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Could not determine IPv4/IPv6 protocol
I am having this problem all of a sudden. Open VPN worked brilliantly until December 2021- then it stopped connecting with the following reason:
RESOLVE: Cannot resolve host address: xxxx.xxxx.com:...
1
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0
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727
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IMAP server responds with "BAD..." error to "LIST..." after similar "LIST" command completes successfully
I'm getting a BAD... error when running a LIST command against an IMAP server that I'm not understanding and could use some help with. I run almost an identical command just prior to it to list the ...
- 598
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1
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394
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DHCPv6 (RFC 8415) - What are reasonable initial values for time intervals T1/T2?
As described in Section 18.2. - Client Behavior of DHCP - RFC 8415 a client uses the Solicit message to discover DHCP servers configured to assign leases or return other configuration parameters on ...
- 115
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291
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Apparent inconsistency in Apache SSLProtocol
I'm running a server with Debian 10 and Apache Version: 2.4.38-3+deb10u3. The behaviour of different settings for SSLProtocol is puzzling. SSL has been configured to be quite secure. This setting ...
- 361
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306
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Do ports change for every request? Are Ip ports are different from system ports?
A typical ip address has >65k ports then again a system that runs localhost offline has port which sometimes face conflicts. Am very under-read in this area please give some light. Pardon my English.
...
- 1
3
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4
answers
2k
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Is RFC 7231 the latest version about the HTTP/1.1 protocol?
I'm doing an university work on HTTP and I try to explain what happens when there is an HTTP connection between a client and a server. To do this, I'm using the "curl -v -i" command on an Ubuntu ...
- 71
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423
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TCP protocol strange behaviour in my program
I started working recently in IT field and as first assignment they want me to communicate with a remote board with a simple Socket using Java.
Today I completed all the job but I noticed that my ...
- 11
16
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2
answers
2k
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What's the point of repeating an email address in "The Envelope" and the "The Header"?
I learned that both the FROM address and the TO address is repeated in a hidden element called the "envelope", and then repeated again in the "body".
Question
Why isn't the envelope data copied into ...
- 311
3
votes
1
answer
925
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tcpdump - prevent interpreting/decoding protocols
Is there a way to stop tcpdump from (mis)interpreting protocols in captured packets?
It assumes that traffic coming from port 4500/udp is always IPSec traffic, 53/udp is DNS query, etc and tries to ...
- 53
3
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2
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6k
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Listener Protocol for ELB in front of Squid Proxy
We have two Squid proxy servers for High availability. We want to use Amazon ELB in front of these Squid proxy servers.
When we use Load Balancer Protocol as TCP and port 8080, Instance Protocol TCP ...
- 81
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0
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514
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nginx default SSL SNI host overwrites SSL Protocols
I have setup nginx with SSL (SNI based).
My first served vHost uses
server {
...
listen 443 ssl;
server_name host1;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
....
On others vhosts I wanted ...
- 241