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Top Questions

4 votes
2 answers
856 views

Remote domain: DNS record A exists when NS does not

3 votes
2 answers
225 views

What is difference between using smtp vs relay transport type in postfix?

2 votes
2 answers
123 views

How to restrict based on combined usage of sender email and client ip address in postfix?

2 votes
1 answer
195 views

Certbot stopped generating certificates

2 votes
1 answer
122 views

haproxy.cfg errors in configuration file. Help needed

2 votes
1 answer
126 views

Are SFP+ "Ethernet" direct attach cables compatible with Fibre Channel?

-1 votes
0 answers
159 views

Browser NS_ERROR_NET_RESET [closed]

1 vote
1 answer
56 views

What difference does it make to implement a feature as policy service vs as milter in Postfix?

0 votes
2 answers
85 views

How do I re-run the post-install set up script after making the wrong choice in apt install mailutils?

1 vote
1 answer
106 views

What to set $DISPLAY environment variable to when su to another user

0 votes
0 answers
131 views

How to get output of STDOUT to GCP cloud logging

0 votes
2 answers
79 views

configuring SSL for two different applications on same server: web server and python

-1 votes
2 answers
73 views

Logrotate in Debian 12

0 votes
3 answers
72 views

2012 R2 Domain Controller migrate to 2022 STD

0 votes
1 answer
54 views

Use let's encrypt certificates with the prometheus node exporter

0 votes
1 answer
48 views

Undersubscribed ESXI host shows 100% CPU

0 votes
0 answers
93 views

How can I fix this Mysql login?

1 vote
1 answer
87 views

Why is it advised to disable relayhost when hosting mail server behind firewall?

0 votes
0 answers
87 views

Cannot access thru hairpin NAT from LAN to a particular IP [closed]

0 votes
1 answer
67 views

What does "--[no]subdomains" option in opendkim-genkey mean?

0 votes
3 answers
135 views

How can I setup a DNS server for a subdomain behind a dynamic IP address?

-1 votes
2 answers
49 views

Seeking guidance on setting up a proxy server with DNS for specific sites

0 votes
1 answer
76 views

What is the LDAP syntax to query a sub domain?

0 votes
1 answer
59 views

postfix as relay - send to non local domain restrict by ip

1 vote
0 answers
75 views

Slowdown in writing and reading files on Windows Server 2012 [closed]

0 votes
2 answers
58 views

Mitigation of a Slow Loris Attack (slow HTTP request DDoS)

0 votes
1 answer
71 views

bypass proxy setting in windows service

1 vote
0 answers
70 views

What are typically the headers which I should oversign?

0 votes
0 answers
69 views

Can QEMU installed on a Windows 10 host run a Windows 11 guest?

0 votes
1 answer
69 views

Docker-Compose Error on CentOS 7: Shared Library Mapping Issue

0 votes
0 answers
68 views

Discover process that exhausted my memory and CPU limits on Ubuntu

0 votes
1 answer
67 views

Wireguard-Server: AllowedIPs disappear for some but not all peers

2 votes
1 answer
52 views

Netplan- How to configure a static IPv6-address and SLACC

0 votes
1 answer
63 views

Sieve for making copy of email reaching a certain alias of an account

0 votes
1 answer
49 views

See https sites in local with Debian / Apache2

0 votes
1 answer
48 views

Isass.exe memory leak on Windows Server 2008 R2

0 votes
1 answer
35 views

Postfix rejecting my email from a "Contact Us" form, with "SMTPRecipientsRefused"

0 votes
1 answer
57 views

Windows EC2 Networking: packets dropping if PPS is too high

0 votes
0 answers
57 views

Use Samba AD DC as Password Backend for Samba PDC

0 votes
1 answer
44 views

Cannot remove alternate computername after in-place upgrade from 2008 R2 to 2012 R2

1 vote
1 answer
34 views

How is the authentication token generated for the IBM Tivoli Netcool/OMNIbus ObjectServer REST API?

0 votes
2 answers
56 views

Hunting down old Cisco Endpoint Harmony installs on clients in the domain [closed]

-2 votes
0 answers
54 views

Partial transfer when using Nginx

0 votes
1 answer
53 views

Windows Server 2019 RemoteFX COM port redirection does not work, Windows Server 2012 it works

0 votes
0 answers
52 views

Block request via htaccess if host contains X

1 vote
0 answers
51 views

Internal network exception on the k8s following VMWare vMotion

0 votes
1 answer
39 views

What does "warning: hostname domain.com does not resolve to address" actually mean?

0 votes
0 answers
49 views

Proxmox cannot route port from network bridge


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