Latest Server related questions

Score: 0
D.Bence avatar
Hard coded nginx memory limit
fi flag

Is there a hard-coded memory limit when using Nginx as a reverse proxy? I don't find any relevant information about this, so I assume there is no limit in nginx itself.

Score: 0
A Mere avatar
For rsyslog - to what facility do ssh and scp belong to?
tv flag

I am trying to send all the ssh and scp error messages to a pipe and to configure this in the rsyslog.conf I need to know the facility for these services. Does anybody know this or a resource where there are exemples for the list of facilities? In the man pages the descriptions are very short.

Score: -1
ldxd avatar
Exchange returned '441 4.4.1
lt flag

some emails sent from my exchange server 2013 return this error:

Sometimes I check the mail flow and emails that have this error

"returned '441 4.4.1 Error encountered while communicating with primary target IP address: "Failed to connect. Winsock error code: 10051, Win32 error code: 10051." Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or deliv ...

Score: 2
M B avatar
trouble with Oracle Sun SAS 6GB/s pci-e drivers
pl flag
M B

I got a new card for my server, a Sun SAS card (SG-XPCIESAS-GEN2-Z), and now I cannot get it to work. I tried many LSI drivers, many Adaptec drivers, but none work, some even crash.

Card P/N is 7056272 and from what I know it uses a standard PM8001c chip.

I saw online that linux works fine with the general pm80xx drivers, but I wanted to use it with a W10 pro machine and no luck there.

I tried contacti ...

Score: -2
n79qk272x57w46w9 avatar
about setting up your local AWS development environment
sg flag

new to AWS here.

Wanted to set up my new Project on the cloud and donate some money to Jeff.

How would you set up your local environment today when starting a cloud project? I have issues seeing the big picture here.

We have

  • AWS CDK ( seems like Terraform is not really needed? )
  • Private Github Repositories

I would like to utilize

  • a strapi instance
  • an SQL Database
  • Redis or some AWS caching soluti ...
Score: 0
Lokilife avatar
How to migrate from one VPS to another
ly flag

Yo, so I need to migrate server from one VPS to another with exact copy of a system with all users, database data and etc. I have image of source VPS but suddenly hosting doesn't provide ability to install that image to destination VPS and I don't know what do to with that.

I've tried this but I didn't understand how exactly I should do steps 3-5.

Score: 0
philipp avatar
Connected Host / Hypervisor does not show up in network, but hosted VMs do
au flag

I have setup a Debian based hypervisor with a single Ethernet Device, such that /etc/network/interfaces looks like that:

allow-hotplug eth0
iface eth0 inet manual

auto iface eth0.30
iface eth0.30 inet dhcp

auto iface eth0.7
iface eth0.gvlan inet manual
        vlan-raw-device eth0

auto br0
iface br0 inet manual
    bridge_ports eth0.7
    bridge_stp off
    bridge_fd 0
    bridge_maxwait 0

So, a ...

Score: 0
georgy avatar
same proxy pass config not working on both instances
gp flag

i have a config /etc/nginx/sites-available/test that only proxies one server the first (blog) and returns a nginx 404 on the second (api) I have tried trouble shooting but to no avail

i tried checking for any syntax or spelling errors i copied the working directive and only replace the server path and name i deleted one directive and it works flawless but not when both are there

upstream blog {
    se ...
Score: 1
Phil avatar
How to find the maximum number of nodes in a GCP Kubernetes cluster?
tr flag

In a GCP Kubernetes cluster is there a command to find out the maximum number of nodes? I have a Kubernetes cluster and need to identify if I can fit my pods to the nodes since there is a taint limiting one pod to one node.

If I want to have 50 pods, I need to know what limit there is on the number of nodes since one pod will match one node.

Score: 0
art vanderlay avatar
how much data does htop transfer from remote?
de flag

If I am connected by ssh to a machine running htop, how do I calculate how much data the htop process is sending from the remote to the machine with ssh terminal?

For example having htop open for a day connected to a 2xcpu 16gb ram ec2 instance, what sort of network traffic and bandwidth usage should I allocate to the htop process.

Score: 0
Abhijit Anand avatar
Kolla-Ansible deployment fails on Ubuntu 22.04 while "Waiting for nova-compute services to register themselves"
eh flag

Problem Statement: Kolla Ansible installation fails on "deploy" play with the below errors ('Errors' Section).

About the Deployment:

  • Lab Openstack deployment using Kolla Ansible
  • 1 Controller, 2 Compute nodes, 1 Block Storage node using LVM / Cinder Volumes
  • All nodes running Ubuntu 22.04
  • "Bootstrap-servers" and "prechecks" plays succeed. The Deploy fails

Troubleshooting done:

Score: 0
alexus avatar
You should set the `loop_var` value in the `loop_control` option for the task to something else to avoid variable
sa flag

My environment:

# cat /etc/debian_version
11.7
# ansible-playbook --version
ansible-playbook [core 2.13.1]
  config file = None
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.9/dist-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collec ...
Score: 1
django_newbie avatar
How to rename sites-available config file in Nginx?
bi flag

Tried to rename sites-available config files from project-name to project-name.net but got an error.

OS: Ubuntu 18

What have I been doing...

1. Created a new config file:

sudo mv /etc/nginx/sites-available/project-name /etc/nginx/sites-available/project-name.net

2. Deleted the old config file:

sudo rm /etc/nginx/sites-available/project-name

3. Enabled the config file by linking it to the sites-enabled ...

Score: 3
Philippe Hebert avatar
Google Cloud Engine - Network unreachable (with NAT)
jp flag

Context & issue

We would like to do maintenance on one of our Compute Engine instance (update dependencies via apt update/upgrade), but said instance does not have access to the public internet, even if there is a NAT in the network:

sudo apt update

Err:1 http://security.ubuntu.com/ubuntu jammy-jellyfish-security InRelease                                             
  Could not connect to secur ...
Score: 1
Bill Werner avatar
ZFS issues with reboot
om flag

After a reboot on Debian 11, I experienced 4 drives that just disappeared for no apparent reason. 2 are 'faulted' and 2 says they are unavailable.

Question: How do I identify the disks with the numbers given? EX.

   mirror-1                     DEGRADED     0     0     0
      10952364450808395632         UNAVAIL      0     0     0  was /dev/sda1
        sdc                        ONLINE       0     ...
Score: 0
VIVEK avatar
Different port forwarding for https and wss (Websocket) using firewalld
hu flag

Currently I setup port forwarding for a nodejs server such that all http requests (using tcp protocol) get redirected from port 80 to 3000, and all https requests (using tcp) get redirected from port 443 to 8080.

The nodejs application also needs to support a websocket server (wss) currently running on port 7071. But the problem is both https and wss use tcp protocol and the default port for both ...

Score: 1
John Salazar avatar
Machine type issue when migrating KVM VMs with live snapshots from Debian to Ubuntu
sz flag

I'm trying to migrate around 40 KVM VMs (containing a few hundred live snapshots mostly used for automated testing on Windows) from a Ubuntu 22 server to a Debian 11 server. The machine type of most of the VMs are pc-i440fx-xenial and I've tried changing the XMLs to machine type pc-i440fx-5.2 to match an available machine type on Debian but qemu doesn't accept it and gives me this error (I'm star ...

Score: 1
alini76 avatar
LDAP postfix "User doesn't exist"
mo flag

I have a postfix server, which forwards all the emails to a dovecot server via LMTP. The usersname/groups are kept in a 389-Directory Server (LDAP)

In /etc/postfix/transport I have a few lines like (one per each domain that I host):

mydomain.com                   lmtp:inet:[192.168.50.223]:10025

In /etc/postfix/main.cf I have:

relay_recipient_maps = proxy:ldap:/etc/postfix/ldap-users-389.cf
...
virt ...
Score: 0
Yogesh Prajapati avatar
apache server not responding due to HTTP CONNECT requests how to block them?
gu flag

Apache server is getting this kind of traffic. Due to that server is not responding. Please suggest how can we handle this issue.

78.135.85.252 - - [07/May/2023:16:08:33 +0000] "\x16\x03\x01" 400 492 "-" "-"
3.88.173.121 - - [07/May/2023:16:08:34 +0000] "CONNECT 92.53.96.128:443 HTTP/1.1" 200 148 "-" "-"
3.88.173.121 - - [07/May/2023:16:08:34 +0000] "\x16\x03\x01\x02" 400 492 "-" "-"
78.135.85.252  ...
Score: 0
Sandbo avatar
Isolating two WireGuard subnets
eg flag

On an AWS server I am hosting a WireGuard peer with two WireGuard interfaces:

  • wg0 - 10.0.1.0/24
  • wg1 - 10.0.2.0/24

There are two groups of clients connecting to the same AWS server but with different target WireGuard interfaces. At the moment, a PC connecting to wg0 can ping a client on the subnet of wg1 10.0.2.0/24.

I would like to block any access in between the two subnets, such that any client con ...

Score: -2
fcm avatar
What is the ILS_ANONYMOUS_USER account?
cn flag
fcm

On a Microsoft Windows domain, on a public IP server, I found a login using the account ILS_ANONYMOUS_USER.
This is Microsoft created domain wide account, not specific to one server.
Is this right?

note:
This is a security issue that may affect every Microsoft domain.
High risk of ransomware, viruses and similar

Score: 0
newbie2math avatar
How to create a openvpn server with port forwarding like portmap.io?
cg flag

I'm currently working on exposing my NAT behind a server to the public using OpenVPN. I've successfully accomplished this by utilizing the portmap.io VPN service, which allows public users to access the NAT resource directly using the OpenVPN server's IP and port, without requiring a VPN client.

However, I'm now attempting to achieve the same outcome with my AWS instance by creating a VPN server  ...

Score: 0
xuanhai266 avatar
Cannot install cluster autoscaler manually in an AKS cluster
in flag

I want to install Cluster Autoscaler for an AKS cluster manually (not enable cluster autoscale) but it doesn't work.
I tried many ways: using helm chart, using yaml files, but no one works.
I referred to some examples here:
https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/azure/examples/cluster-autoscaler-vmss.yaml https://github.com/kubernetes/autoscaler/blob/ ...

Score: 0
xuanhai266 avatar
There is no pod with name "cluster-autoscaler-xxx" in AKS cluster with enabled cluster autoscale
in flag

I enabled cluster autoscale in 2 node pools of my AKS cluster (using Azure Portal). It works well.
But I check running pods in kube-system namespace and there is no pod with name "cluster-autoscaler".
How does cluster autoscaler work in AKS cluster?
As my understanding, it should deploy a pod with name "cluster-autoscaler-XXX" in kube-system namespace.
Please help me to understand it.

Score: 0
user9784676 avatar
Connection refused at port 80 MacOS Ventura 13
kp flag

Can someone assist on how to open port 80 for connections, I get a connection refused: See below

MacBook-Pro:bin say$ telnet localhost 80

Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused telnet: Unable to connect to remote host

Score: 1
HippoMan avatar
Specifying an IPv6 MX record via djbdns or djbdns-fefe?
by flag

I'm trying to set up IPv6 MX records in my djbdns environment. I also am experimenting with djbdns-fefe for this same purpose.

According to the djbnds-fefe documentation, "... tinydns-edit won't accept IPv6 addresses for NS or MX records yet". Furthermore, I don't know of a way to set up IPv6 records in the traditional djbdns environment.

I've been searching for a solution to this issue, but I haven ...

Score: 0
wick avatar
Logrotate group of files if any member is eligible
kr flag

I have a group of log files (they are related but that's application level and not relevant). I want to set up logrotate configuration on Debian linux to rotate the whole group (all the files) once any of them reaches the limit, say 100MB for example. I can't see such an option - any idea how to achieve that?

Score: -2
sairam avatar
I have 2 AWS accounts A and B. On premises client network c. I have a VPN tunnel from B TO C which works fine and A TO B with peering
mw flag

I have 2 AWS accounts A and B. On premises client network c. I have a VPN tunnel from B TO C which works fine and A TO B with peering.

can we communicate from A to C with the help existing VPN tunnel from B TO C

connections i have

B to C- VPN tunnel. A to B- AWS peering. What i want to achieve is

A->B->C

need to be communicating A to c

Score: 0
roughnecks avatar
managesieve - default sieve not applying
us flag

I set up my mail server on Debian 11 (postfix, dovecot, spamassassin, roundcube) and I got an issue with managesieve.

In "90-sieve.conf" I set:

sieve_default = /var/lib/dovecot/sieve/default.sieve

Then I edited the file with a spam check, to move mail to the junk folder and ran the following command:

sievec default.sieve

The problem is that whenever I create a new user, the default sieve I find in Roun ...

Score: 0
Sara avatar
Does google colaboratory save code in local computer when using local runtime
US flag

When running python code from google colab into local computer (local runtime), does the code is saved in the local computer or not ?

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