Latest Server related questions

Score: 0
Kyoshi avatar
Exchange 2016 - Users mail keep being stuck in a Shared Mailbox‘s outbox until someone else uses the Same Shared Mailbox
tr flag

I have come across a very unique problem that I have yet to find a solution for as even google failed me.

When User1 tries to send a mail as the shared Mailbox SharedMailbox@ourdomain.com the mail is being placed in the outbox and does not show up in any logs. However if User2 sends a mail as the shared Mailbox, User1‘s mail is also being send out of the outbox with no problem. At this point Us ...

Score: 1
IDEtoSATA avatar
vCenter in a ESXI host that it manages
cn flag

We have 2 physical servers (A and B), each with ESXI 7.0 installed. We'd like to manage them with vCenter. Can we install vCenter on one of those servers? Is it advisable?

Score: 0
hongjie mao avatar
Server dropped: no data NTP issue
fr flag

When the time difference exists between the client and server, NTP can be synchronized normally.

When they have no time difference, it displays server dropped:no data.

transmit(192.168.30.22)
receive(192.168.30.22)
transmit(192.168.30.22)
receive(192.168.30.22)
transmit(192.168.30.22)
receive(192.168.30.22)
transmit(192.168.30.22)
receive(192.168.30.22)
transmit(192.168.30.22)
receive(192.168.30.22)
1 ...
Score: 0
nftables read counters as non-root user
in flag

I have set up some firewall rules using nftables. They include some data counters for some types of traffic that I'm interested to monitor.

Now, I'd like to be able to have an application read those counters, ideally using libnftnl, running as a non-root user. But, initial testing with nft indicates that I can't read nftables counters as a non-root user.

As root:

$ nft list counter my_table my_counter
ta ...
Score: 0
Apache rewrite condition not matching, possibly bad syntax?
my flag

Hi so I have a rewrite rule in order to control access to the admin page of a service behind a reverse proxy. I only want local ip's to be able to access it. So essentially if the condition does NOT match then we follow the rule and restrict access. However it seems the rewrite condition either never gets evaluated or doesn't match and I'm not sure which it is or how to check.

At the moment I h ...

Score: 0
Tool to map labels to selectors cluster-wide (out of the box)?
za flag
Jim

Is there a tool that can show me a mapping of selectors to labels and the resources to which those mappings are meaningful cluster-wide?

It seems to me that something like such a tool would be helpful to troubleshoot or just reference "connections" in one's cluster assuming selectors exist for labels. If selectors don't exist for a given or set of labels then just seeing the labels could also be  ...

Score: 0
hybang avatar
TPROXY redirect and routing decision
ai flag

I would like to ask what happens internally when redirecting using Tproxy.

iptables -t mangle -A PREROUTING -p tcp --dport 443 -j TPROXY --tproxy-mark 1 --on-port 40001

It located in PREROUTING in the mangle table of iptables.

As far as I know, the routing decision is made after the PREROUTING chain.

When redirecting using Tproxy as above.

Packet through ip rule & routing table? Or does it go d ...

Score: 1
Ashley avatar
Postfix is getting "TLS Is required, but was not offered by host"
jp flag

I've searched every forum, every article, every serverfault.com post for this issue. I'm using a fresh setup of Postfix. It is managed by Virtualmin. Whenever I try to send mail via TLS, I get the error (identifable information removed):

Sep  7 21:58:37 mail postfix/smtp[220916]: initializing the client-side TLS engine
Sep  7 21:58:37 mail postfix/tlsmgr[220917]: open smtpd TLS cache btree:/var/lib/ ...
Score: 0
mk1 avatar
strongswan and Squid Proxy on the same saver
za flag
mk1

192.168.1.10/24 client<--->cisco_router<----IPSec/Ikev2----->eth1(192.168.15.4)-strongswan/Squid-eth0(192.168.16.4)<------->Internet.

on the scenario above I have IPSec working. The client can ping eth0 and vice versa. My issue is with IPTABLES. How do I route my traffic after coming out of the IPSec tunnel through squid(proxy) to access the internet.

Score: 0
How do Virtual IPs allow fast switching?
vn flag

I am designing a simple fail over system with just a primary and standby server. The main one will be in our office, while the standby will be on the cloud. I was reading about virtual IPs and how they provide 'failover' typically for load balancers.

My question:

How are they able to switch so fast?

My limited understanding of DNS data is that they are cached on dns servers worldwide. Surely, it will take ...

Score: 0
Don R avatar
FTP on IIS is not allowing FTPS connection
cn flag

I am trying to set up an FTP site on Windows Server 2019/IIS running on an AWS EC2 instance. I have added the FTP service, added an FTP site, installed a TLS certificate and bound it to FTP, and selected the Require SSL connections option under FTP SSL Settings. But I obviously have missed something, because when I try to connect using FTPS (using FileZilla 3.55.1) the server returns the status 534 Lo ...

Score: 1
Hover Horse avatar
Why does server throw Q Code 19 only when both CPUs installed?
ua flag

I've got two identical intel CPUs in an Asus board with one stick of ram each. On power up, board immediately throws code 19 ("SB initialize before installed memory"). I've tested each CPU individually, as well as each stick of ram. When using a single cpu, the system boots fine with either one or two sticks of ram installed. The only time I have issues is when I install the second CPU. Am I missing som ...

Score: 0
saro avatar
Docker containers keep shutting down
my flag

I ran docker-compose up on two docker containers and both ended up shutting down. I am not sure what's causing this, but I am wondering if there's a way to fix it. Both keeps shutting down after roughly 1-2 hours. I want to dockerize the application for production, but right now because it keeps shutting down, I can't.

This is my php docker container:

mariadb_1  | 2021-09-07 14:46:53 0 [Note] mysqld ( ...
Score: 0
Valerii avatar
PostgreSQL No Mapping between account name and security IDs
cn flag

I downloaded the installation file on https://www.postgresql.org/. I have Windows 10. As soon as I click on the installer of PostgreSQL, I face an issue: Image of the error

Image of the version of Windows Do somebody know where to look for the solution? Thanks. I tried tens of ways, nothing helps. I tried to make some some changes in Windows log files, I changed user, I tried to open through the a ...

Score: 0
Import Servers from AD using OU names as Groups in RDCMan
in flag

I have been trying to write a PowerShell script that will create a .rdg file for me that holds my credentials, and mirrors exactly what the AD OU structure looks like (sub OUs as Groups) into RDCMan. This post (How to export computers from Active Directory to XML using Powershell?) comes the closest but I am unable to resolve the issue the original poster had. Any guidance would be greatly appreciated! ...

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