Latest Server related questions

Score: 0
VMWare Disk Performance
va flag

I have an HP ProLiant DL380p Gen8 (VMWare 7u3 installed) with 2 pieces of 960GB SSD RAID1 arrays (total of ~1+1=2GB usage). The rest of the configuration is like

  • 24 CPUs x Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz (2x12 Cores)
  • 256GB RAM

The issue I am having is with the disk performance. Today I switched off one of my Ubuntu VMs and started moving its folder from one datastore to the other (I ment ...

Score: 0
Dave avatar
Can ping OPC UA server, but cannot connect to it
mk flag

I have an OPC UA server running on a PLC from BR Automation and would like to connect to it from UaExpert running on a Windows 10 machine. It has worked previously, but after physical re-placement of the components and installing a new ethernet cable, I cannot connect to the server any more:

GetEndpoints on EndpointUrl failed with 'BadTimeout', retrying on all DiscoveryUrls
Could not connect to ser ...
Score: 0
Klaus F. avatar
Apache VirtualDocumentRoot multiple subdirectories possible
za flag

I have a local Apache server for developing pages. Therefore, I have a root folder where all the different pages are in subfolders. Those folders then have another subfolders for the public content. This could be - depending on the framework - a different folder (e.g. public, wwwroot, webroot, httpdocs).

Folder structure:
/
|-- srv
    |-- http
        |-- page
        |   |-- webroot
        |     ...
Score: 0
Google Cloud VM startup-script to change ssh port
es flag

After changing port i'm unable to login SSH

Extremely large packet length from remote suggests data stream corruption

firewall already open for that port Now i wanted to try revert ssh port to 22

Can I do it with google startup-script and if yes, what command i need for that ?

Thanks

Score: -1
James Li avatar
why is port 35128 associated with ssh2?
as flag

I failed to login to my root account over ssh, and when doing so I noticed this interesting line in auth.log:

"Failed password for root from [ip address] port 35128 ssh2"

I'm not so interested in the actual failure to access root (I found a solution to this), I'm more interested in why this is going to/coming from port 35128 since ufw is set to deny incoming traffic on ports that aren't 80 and 22 by ...

Score: 1
Nginx -- Can't use mDNS domain name in upstream server
br flag

Minimal example

Machine A and B, where B uses mDNS with domain name b.local and set ssh service at port 2222. A and B does not turn on firewall.

In machine A's nginx.conf:

stream {
    upstream b-ssh {
        server  b.local:2222;
    }
    server {
        listen      2222;
        listen      [::]:2222;
        proxy_pass  b-ssh;
    }
}

When using nginx -t to test this configuration on machin ...

Score: -2
How to setup multiple vps in one hardware
in flag

I purchase a rack server hardware with 64GB ram now i want to create 8*8GB VPS so how can i do that.

I have 1 internet connection and 8 static IP from ISP, Now problem is how can i setup port forwarding.

Actually before buying rack server i test it on home PC which have i3 processor with 4gb ram, i purchased a static ip then i install centos 7 and cpanel in my pc and check my local ip which was 192. ...

Score: 0
Rizwan Khan A avatar
Not Able to start tomcat-logserver.service
us flag
systemctl status tomcat-logserver.service
● tomcat-logserver.service - Apache Tomcat Web Application Container
Loaded: loaded (/etc/systemd/system/tomcat-logserver.service; enabled; vendor preset: disabled)
Active: failed (Result: start-limit) since Tue 2022-04-26 23:30:23 BST; 4s ago
Process: 29949 ExecStart=/apps/tomcat/apache-tomcat-9.0.58/bin/startup.sh (code=exited, status=203/EXEC)


[root@XXXXXXX ...
Score: 0
EKS Pods with ephemeral-storage constantly evicted
ve flag

I'm working on EKS v1.20.11-eks-f17b81 and I'm facing an issue with a Java container Alpine based. Basically my deployment have the limits of ephemeral-storage for the request's and also the limit's like this.

- containerPort: 8080
  protocol: TCP
resources:
  limits:
    cpu: 2048m
    ephemeral-storage: 1300Mi
    memory: 4096M
  requests:
    cpu: 500m
    memory: 1024M
    ephemeral-storage: 10 ...
Score: 0
Faking a display on a VM
in flag

Can I fake a display with some X11 magic somehow on a headless VM? I had this old machine that was about to croak so I am moving all its code into a VM. It is going well but some small snippet of code tries to use python and tkinter which gives an error:

_tkinter.TclError: no display name and no $DISPLAY environment variable

Since that old machine sure enough has a vga out that goes to an old KVM sw ...

Score: 0
Custom ubuntu package compiled locally says upgrade available even though what's in the repo is the same version
nl flag

I have obtained the source package for one of the things installed on my Ubuntu system, made a change to the source code, built a binary package, and installed it.

Now that package ALWAYS shows up in the list of upgradable packages, even though what's in the repo is the exact same version.

I have put a hold on that package, which works ... but I don't want to see that package in the list of upgradab ...

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