Latest Server related questions

Score: 0
neolith avatar
How to forward a port via an IPv6 tunnel?
ma flag

I have a service on port 8080 of my local machine, which I have created an IPv6 tunnel via Hurricane Electric’s service for on

https://www.tunnelbroker.net

I can ping the tunnel. So that part works, but I can’t use my service on 8080.

How can I forward or listen to the port?

Score: 0
Ercksen avatar
Cannot ping reachable host when using eth0 as interface
ru flag

I wrote a watchdog script that checks whether the VPN server on my machine (which is reachable over the internet) is working properly. There have been random issues after long runs that required a reboot.

In a loop, the target host is pinged. After 20 unsuccessful pings, the machine reboots.

Unfortunately, the host used for the ping resolves to an IP that is bound to interface tap0. RTTs of below ...

Score: 0
Avaldes avatar
Google Cloud SQL Server data to BigQuery
ao flag

I need to export the data that I have in a Google Cloud SQL Server database to BigQuery in order to make some data analysis and reporting. I found that the recommended way to do that is using BigQuery Cloud SQL federated query but this doesn't support SQL Server database, only MySql and Postgres in Google Cloud SQL service.

I'm looking for a way to do that with the Google Cloud resources, maybe a ...

Score: 0
Sonu Jaiswal avatar
Iptables forward all traffic to a specified port and IP address, to another device
pl flag
iptables -t nat -A PREROUTING -p tcp --dport 4433 -j DNAT --to-destination 192.168.1.1:443
iptables -t nat -A POSTROUTING -p tcp -d 192.168.1.1 --dport 4433 -j SNAT --to-source 10.0.2.15

echo 1 > /proc/sys/net/ipv4/ip_forward

where ip address 10.0.2.15 is your iptables computer

Tried on ubuntu 20.4

telnet 10.0.2.15 4433 Trying 10.0.2.15... telnet: Unable to connect to remote host: Connection refused

Score: 0
Dogaru Ionut avatar
UNSCD DNS TTL value vs configuration value
fr flag

We're using unscd for DNS caching and recently we'd to do some sort of load balancing which was partially done on the DNS level. This implied more frequent updates on the IP addresses returned by the server and a smaller TTL value.

After doing some testing, unscd doesn't seem to consider the TTL values returned by the DNS server and is always using the configuration value instead.

I didn't find much ...

Score: 2
user3271408 avatar
Group Policy Management about:security_mmc
cn flag

In Group Policy Management, when I click on an existing GPO, I get an Internet Explorer Enhanced Security Configuration messaged that "about:security_mmc.exe" is not a trusted site.

Error received when selecting a GPO

It happens every time I click a different GPO. I read to add this to the trusted site list, which I did. I confirmed it is in the policy when I do gpresult.

GPResult

But I'm still getting this message. Anything else I need to do ...

Score: 1
Teosch avatar
SSH Connection loss when roaming to an AP with a different OUI
th flag

I have major issues with a device (Ubuntu 20.04 installed) in a warehouse with multiple access points. I am frequently losing the SSH connection. Investigating the matter, I found out that I lose connection whenever the device roams to a different AP (same SSID). Digging deeper, I found out that the SSH connection is only killed when the device roams to an AP with a different OUI (lets say YY:YY:YY indi ...

Score: 3
is cloudflare now using let's encrypt certificates for edge?
ie flag
rvh

i just added a new domain to cloudflare and the edge certificate is let's encrypt r3, shown in control panel and by inspecting in browser when on the domain's website.

my existing domains still have the regular 1-yr certs. wonder if they'll switch to let's encrypt after expiration.

anyone else noticed?

Score: 0
DevOpsSauce avatar
How to create a systemd "start all" template unit file from an upstart script with multiple services?
jp flag

I'm in the process of migrating all custom upstart scripts to systemd. I've come across a script that utilizes multiple services. I cannot figure out the proper syntax to handle this, or if I need to just create separate .service unit files for each. Is this possible for templating? The SystemD Unit Documentation doesn't give me much information, except for how to create a template file (appending ...

Score: 1
Restricting swap usage for a systemd service in Ubuntu 18.04
ng flag
tuk

I am trying to restrict the swap usage of a process using MemorySwapMax as mentioned in the doc with Ubuntu 18.04.

Environment

ubuntu@vrni-platform:/usr/lib/systemd/system$ uname -a
Linux vrni-platform 4.15.0-143-generic #147-Ubuntu SMP Wed Apr 14 16:10:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

ubuntu@vrni-platform:/usr/lib/systemd/system$ systemctl --version
systemd 237
+PAM +AUDIT +SELINUX +IMA +AP ...
Score: 0
Forward mail as specified in virtual.db with aliases
es flag

I have set up alias [email protected] for every user on my linux server in this format.

all: username1,username2,username3

I also have set up virtual for forwarding all emails that come to server address to different mailservers.

[email protected]    [email protected]
[email protected]    [email protected]
[email protected]    [email protected]

When I send direct mail to [email protected] ...

Score: 0
DMARC, DKIM, or SPF? Emails going into quarantine
vn flag

I have never had to deal with DKIM, DMARC, or SPF records before; however, our SPF record is full (10, Cloudflare) and I have a vendor whose emails aren’t making it to our mailboxes.
I made exceptions in our spam filter for the emails, and have added DNS TXT records to bypass these issue, but they are still landing in the O365 quarantine.

I believe adding them to our SPF record would resolve the iss ...

Score: 0
Newskooler avatar
When I "stop" a system process, the "ExecStart" command process does not stop
it flag

I run a system service with the following config my_script.service:

[Unit]
Description=My demo program.

[Service]
User=myname
ExecStart=/my_scripts/some_async_python_script.py
Restart=always
RestartSec=5s

[Install]
WantedBy=multi-user.target

Before running I would do this once: sudo systemctl daemon-reload and sudo systemctl enable my_script.service and then I would start like so: sudo systemct ...

Score: 0
HCL Domino Monitoring Configuration (events4): is it possible to generate and use application events?
az flag

I checked the (Help) databases but couldn't find out if I can create Custom Application Events, and if I can, how they can be used. For instance, I'd like an Agent to write a specific text in the log.nsf database and DDM should pick it up and process it according to what's specified in the Handler. Or if there is an XPages error, I can output something to the log database and DDM should find out about i ...

Score: 0
Zehke avatar
Can 2 websites www.example.com and www.example.eu reside on the same server
cn flag

We have 2 websites and want to get a SSL-certificate for both:

  1. www.example.de
  2. www.otherExample.eu

Both sites reside on the same server under different root with their own config-file. With certbot I got a certificate for each one of the sites: sudo certbot --apache -d www.example.de -d www.otherExample.eu

www.example.de works fine but www.otherExample.eu throws SSL-NO-CIPHER-OVERLAP-Error Relate ...

The Stunning Power of Questions

Much of an executive’s workday is spent asking others for information—requesting status updates from a team leader, for example, or questioning a counterpart in a tense negotiation. Yet unlike professionals such as litigators, journalists, and doctors, who are taught how to ask questions as an essential part of their training, few executives think of questioning as a skill that can be honed—or consider how their own answers to questions could make conversations more productive.

That’s a missed opportunity. Questioning is a uniquely powerful tool for unlocking value in organizations: It spurs learning and the exchange of ideas, it fuels innovation and performance improvement, it builds rapport and trust among team members. And it can mitigate business risk by uncovering unforeseen pitfalls and hazards.

For some people, questioning comes easily. Their natural inquisitiveness, emotional intelligence, and ability to read people put the ideal question on the tip of their tongue. But most of us don’t ask enough questions, nor do we pose our inquiries in an optimal way.

The good news is that by asking questions, we naturally improve our emotional intelligence, which in turn makes us better questioners—a virtuous cycle. In this article, we draw on insights from behavioral science research to explore how the way we frame questions and choose to answer our counterparts can influence the outcome of conversations. We offer guidance for choosing the best type, tone, sequence, and framing of questions and for deciding what and how much information to share to reap the most benefit from our interactions, not just for ourselves but for our organizations.