Latest Server related questions

Score: 0
Ahmed Reda avatar
550-5.7.26 Unauthenticated email from domain is not accepted due on ERP only
id flag

I have made updates to our mail server to use DMARC. So after This our ERP system cannot send emails to gmail.com or yahoo.com but Outlook sends emails with no problems.

Below is the header for an email that was sent from my domain to Gmail and comes safely:

Message ID <[email protected]>

Created at: Fri, Jul 16, 2021 at 11:30 AM (Delivered after 4 seconds)

From:  ...
Score: 0
DO app hosting a site attempting to connect to a DO Droplet hosting an API results in an unhandled rejection
cc flag

It was suggested to post here from stackoverflow. Here's hoping.

There are two components to my application:

  • A DO 'App' which hosts a react website. This website makes requests to:
  • A DO 'Droplet' which hosts an API

When I attempt to connect from my development environment the Droplet, data is returned and the locally deployed react app displays the data.

However, when I deploy the react app onto t ...

Score: 0
William avatar
Does mail dot com have IPV6 MX?
ru flag

It seems mail dot com does not have an ipv6 smtp server. It is a little weird for such a famous email service provider. Or, I did not find a way to get its ipv6 server? I used the following command to check its ipv6 server:

dig mx01.mail.com AAAA

But the output does not show an ipv6 address. How can I get its possible ipv6 servers?

Score: 0
Apiwat Plianjitdee avatar
Openstack : Internet connection loss on the instance when openvswitch port updated
ng flag

I use the Openstack Ocata and have the internet connection loss problem in the instance. I found the log of neutron-openvswitch-agent.log as below when the internet connection loss in the instance, port ID: fdc885fb-fa01-401f-ab4b-c366cf846681.

2021-07-15 08:35:52.394 118987 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1086b503-3aa3-4f25-84f8-07f0ee992fed - - - - -] Por ...
Score: 1
Rishabh Gupta avatar
Can we connect two raid controllers in standby?
pg flag

I'm new to server machines and even even installing raid controllers, so pardon me if its too basic question.

We have a SuperMicro X10DRH-I Motherboard connected to a raid controller AOC-S3108L-H8Ir, both are supermicro products. We need to add one more raid controller in hot/cold standby with this controller.

My doubt is is this even possible and if possible how?

If not possible then a general questio ...

Score: 0
CoinAnalyzer avatar
Can't Get ProxyPass User IP Address
cn flag

JAVASCRIPT

websocket = new WebSocket("wss://site.com/game_play/");
....

PHP

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
....
$size=socket_recvfrom($socket_new,$input,65535,0,$ipaddress,$port);
echo "Received [$input] ($size bytes) from IP $ipaddress Port $port\n";

APACHE

ProxyPass /game_play/ ws://site.com:8090/server.php
ProxyPassReverse /game_play/ ws://site.com:8090/server.php

START ...

Score: 1
uday avatar
istio gateway, not loading the node application
ke flag

I have tried to deploy a sample nginx app and it working. So, I replaced the same with another nodejs as this contains mutliple sub pages. So, I can test the routing.

Here, with LoadBalancer default service type, the page is loading as below.

LB

But, with istio gateway, it is just showing an empty page.

gateway

Please suggest how to fix that?

My gateway:

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metad ...
Score: 0
tom654321 avatar
Is it possible to force the DHCP server to assign a different IP address each time the address is renewed?
cn flag

I need to detect IP address renewals in my C++ Linux application and check if the new address is different from the old one. I have access to a router running OpenWrt. I can change the lease time, but I can't find a way to force an address change with each renewal process. Is this even possible? Maybe once assigned the IP address is never changed at renewal and the only way is to get the address after t ...

Score: 0
Bob5421 avatar
does SSL/TLS STARTLS full encrypt connexion for POP and IMAP
hm flag

I am configuring POP and IMAP accounts in thunderbird mail client.

Here are 2 options:

Security:

  • None
  • SSL/TLS
  • STARTLS

Authentication method:

  • Normal password
  • Encrypted password
  • Kerberos / GSSAPI
  • NTLM
  • OAuth2

I have 2 mails accounts: One POP and the other is an IMAP account.

I want to be sure nobody can listen my password and any mail content by sniffing network.

I have tried "SSL/TLS" and "STARTTLS" ...

Score: 0
Sync users from one Azure AD instance to another
ng flag

I'm looking to 'sync' (maybe not the best term) users from multiple Azure AD instances into one single instance.

Reasoning behind this is the following: our company is part of a 'group' together with a few other companies. Each company is self supporting in the sense that they have their own administration, tenants (some are using Google instead of Azure) and so forth.

Now for a couple of things it  ...

Score: 2
why is nginx timeout-ing?
ro flag

Here is my timeout related nginx conf :

http {

...

proxy_read_timeout 300;
proxy_connect_timeout 300;
proxy_send_timeout 300;

...

}

and my reverse proxy setup :

upstream node {
        server 127.0.0.1:2200;
}

server {
  listen 80;
 
  location / {
        proxy_pass http://node;
    }
}


I am posting a query to my webserver and nginx times out after 1 minute with the following message :

 ...
Score: 0
mudit avatar
Configuring nginx to work with wildfly with proxypass
cn flag

I want to configure my nginx config in such a way that non https upgrades to https and then the proxy pass should go to https://ip:8443/SOMECONTEXT/

How can I achieve it

This is the config I am using

server {
    listen  ip:80;
    server_name  subdomain1.example.com subdomain2.example.com;

    access_log  /var/log/nginx/subdomain1.example.com_access.log;
    error_log /var/log/nginx/subdomain1.example. ...
Score: 0
vivek avatar
Valid format of key for each type in ntp.keys file
cn flag

I have few questions on ntp.keys file and need your help.

From man page, the format of ntp keys is

`keyno type key`

where type can be md5, sha1, ripemd160, sha224, sha256 etc.

I have confusion on the format of key for above types. From the man page,

The key may be printable ASCII excluding "#" or hex encoded. Keys longer than 20 characters are assumed to be hex. The max length of a (de-hexified)  ...

Score: 0
theonlygusti avatar
How to forward all requests from one port to another with nginx
es flag

I want to be able to visit https://localhost:888/ in my browser and have it behave identically as if I had accessed https://localhost:999/

How can I do that?

I tried adding

server {
    listen   888;
    server_name  localhost;
    location / {
        proxy_pass https://localhost:999;
        include /etc/nginx/proxy_params;
    }
}

to a new file /usr/local/etc/nginx/servers/default, but I can't a ...

Score: 1
Jacob Still avatar
IBM LTO4 Backups Failing
br flag

I am new to tape backup systems and recently bought a used IBM TS3100 3573-L2U library with a ULT3580-TD4 LTO4 SAS drive as well as some fujifilm tapes. I have followed this guide/HOWTO and am using the lto4 file from here with updated manufacturer and model flags to match my hardware.

I am running into an issue where backups of vm disks fail and mpt3sas offlines the device. In my troubleshooting, I trie ...

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