Questions tagged [rpc]

A remote procedure call (RPC) is an inter-process communication that allows software to cause a subroutine or procedure to execute on another computer.

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Internal ext4 quotas (reserved inode) and rpc.rquotad export

When doing a quotacheck on my NFS server, i got a message to switch quotas to internal ext4 format. I did it, but now rpc.rquotad noes not work anymore and quotas are not anymore exported to clients. ...
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Unable to connect via SSH or access NFS exports

This one has me puzzled, I've got a home server (Debian Bookworm) and several Raspberry Pi machines, also all running Raspbian Bookworm. Just for illustrative purposes ServerA Debian Bookworm PI1, ...
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Established TCP Communication terminates without any clue

I'm not able to understand what might be the reason for a lost TCP Communication over RPC between a CentOS 7 and Windows 2019 Server. From the Wireshark I could see that the TCP Communication is ...
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dpkg-query: no path found matching pattern /usr/sbin/rpc.statd

In Ubuntu 22.04(Jammy) there are two rpc.statd binaries exist with hardlink. If main file /sbin/rpc.statd is there, what is the use case of hardlinked file /usr/sbin/rpc.statd. Thank you. :~# dpkg -S /...
Rama's user avatar
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certutil over ssh (RPC server is unavailable)

When executing a certutil request from a local powershell everything is ok. PS C:\Users\admuser> certutil -ping -config 'caserver\ca' Connecting to caserver\ca ... Server "ca" ...
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Custom RPC Kerberos authentication working on Samba but dont Windows

I have implemented an RPC client in C# which uses GSS/SPNEGO authentication. I am trying to connect to the standard/Active Directory services (DRSAPI, SAMR etc...) on the server. The authentication ...
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New DC - AD Domain Services did not perform an authenticated remote procedure call (RPC) to another directory server because the desired (SPN) f

I recently added a Windows Serevr 2019 DC to my domain which already has three DCs across two sites. The three existing DCs are Server 2012 R2 and the Domain and Forest levels are 2008 R2. The new DC ...
POr's user avatar
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Active Directory Sync - RPC Server Unavailable Error, but all services and network protocols are fine

Background: 4 Windows Server 2016 domain controllers at 4 different sites. Sites are connected by S2S IPSec connections. The one site moved and the server in this site broke down, so we had to restore ...
Francois Botha's user avatar
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Unable to establish RPC between an on-premise windows server to an Azure VM (Windows)

I am facing an issue where I am trying to establish RPC between an on-premise windows server to an azure VM (Windows) by executing the following cmd in the terminal from the source (on-premise windows ...
Joe's user avatar
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Can not modify Remore Procedure Call (RPC) service

I have an admin account on my windows, and I used to disable the RPC service before, but recently I can't even modify that. It is permanently disabled, and I can't change its properties. Does anyone ...
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Architecture: streaming data consolidation

I am trying to come up with an architecture we have some streams/RPC clients running on python-Autobahn. We have a crossbar broker which allows a consumer application to take the RPC/stream and ...
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Too many RPC connections make web socket closed

Several servers are connected via RPC. There are times when apps in OS have too many RPC calls, which causes the network to become closed. What is the best way to debug or configure my OS? "msg&...
Shervin Ivari's user avatar
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What is the difference between mount -t nfs3 and mount -t nfs -o nfsvers=3?

While mounting a share I had issues with idmapping. Mounting with sudo mount -t nfs 192.168.0.23:/myshare ./myshare -o nolock and listing its contents yielded this (note the nobody and 4294967294): -...
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Windows 10 remote tools not working, mmc, psexec etc

I'm having a problems on the network Some newer Windows 10 PC's (Win10 image from Dell), behave different, then older Dell PC's. They have the same service pack's and hotfixes, its something in ...
Peter's user avatar
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Server2019 "rpc_s_server_unavailable 1722" Error

I have a new domain and servers are running on Server2019. I am trying to run a script to edit dns records on DC from another server. But I face with the the error above. I checked the solution tips ...
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Why would a server in an AD environment allow Remote Registry access by FQDN, but deny and lock out accounts over IP address?

We have a situation where a software application cannot be installed because the admin account used during installation gets locked out during prerequisite checks. After some investigation, we found ...
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Loading a performance DLL of a windows 7 service [closed]

I am trying to do a POC of recently published windows zeroday flaw where a vulnerability has been exposed in windows registry entries. I have created a performance subkey of a service RPCEPTMAPPER ...
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Hyper-V Remote Management / Windows 10 client / Hyper-V Server 2012 R2

I've been struggling for a few days now with some crazy issues connecting to my 2012 R2 server via Hyper-V manager from Windows 10. Setup: Client is a Windows 10 Pro machine running v1903 Host is a ...
malikguy's user avatar
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nfs/rpcinfo fails (timed out) on Ubuntu 16.04 server

Trying to establish an NFS mount between some openstack instances, using this ansible playbook. All Ubuntu, server is 16.04, 4.4.0, clients are 18.04, 4.15.0. I have set the security groups to be able ...
DeusXMachina's user avatar
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How to add an application to Windows RPC endpoint mapper

Our DCOM application serves up objects on a specific port such as 4162, and the client used to be able to get objects via a moniker specifying a full binding (e.g. 10.0.0.15[4162]). The September ...
Neil M.'s user avatar
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How can I connect to the SQL database in the cloud via MSDTC?

Objective: I am continuing the development of a legacy Windows Forms application by developing locally on my laptop. The app relies on MSDTC to connect to a SQL database. I want to host the SQL ...
nairware's user avatar
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Can't mount CentOS NFS share on Windows 10 - "Network Error - 53"

I have a CentOS 8 virtual machine (192.168.10.203) running nfs-server, and I'm trying to mount the share on my Windows 10 Pro x86_64 machine (192.168.10.10) I have installed the "Services for NFS&...
rst-2cv's user avatar
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NFS: What is remote locking, and do I need it?

I'm building a somewhat minimalistic system that collects serial port data and shoves it into a logfile on an NFS mount. In an effort to reduce the system somewhat I decided to disable RPC as I ...
Jarmund's user avatar
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Having trouble with gRPC calls behind an (AWS classic) load balancer

I have a server written in Python 3.6, using frameworks flask (1.0.2), and SQLAlchemy (2.4.0). I have some rest calls going out to third-party services such as vision APIs. I have a few API calls ...
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Trouble Promoting Windows Server 2019 to Domain Controller

I am trying to add an additional domain controller using Windows 2019 Standard in a Windows 2012 R2 environment. As far as I can tell, this is supported by Microsoft. When trying to promote the new ...
AZinNC's user avatar
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Why doesn't rpcinfo command in linux show rabbitmq?

What I understood is that some of the Openstack components communicate using RabbitMQ service (which uses RPC protocol) while other communicate using REST APIs, DB queries etc. But when I check ...
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what is the port range of rpcbind in linux?

What is the port range for rpcbind services? does it have a specific port range or it is using ports range 0-1023? Thanks. Mahmoud
Mahmoud Ahmed's user avatar
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WERR_ACCESS_DENIED error despite all services running

I am trying to list all rpc commands from an Ubuntu machine on a Win 10 Pro machine: net rpc service list -I <ip> -U username Getting the following error: Failed to open Service Control ...
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Remote Management of Windows Server 2016 via Powershell through the firewall

I use a "free tier" AWS server instance. I have only so much CPU allowance on it, and remoting to it to perform basic management stuff eats into that CPU allowance in a big way. Enter Powershell. I ...
CodeWarrior's user avatar
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Can I get SSH to run a "local-procedure-call" back on my workstation, allowing me to use my trusty sysadmin scripts wherever I may be?

Is there anything like a "local-procedure-call" mechanism in SSH that would allow me to momentarily redirect STD{IN,OUT,ERR} to a process on my workstation, after having SSHed into a remote machine? ...
Idris's user avatar
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Enable port 135 on Azure server

I have a licensing manager software installed on Azure VM and a client tool tries to connect to it using a DCOM request, which I believe uses port 135. However, I get an 'access is denied' error when ...
Inception's user avatar
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AIX portmapper reported listening at port 32771. Why is it not the nlockmgr process?

I am trying to calm my security group which believes portmapper is listening at port 32771. My host is running AIX 7.1. I do not have access to the GNU network utilities here. rpcinfo(8), both ...
iAmJeff's user avatar
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Firewall rules for the RPC Protocol

I am trying to understand how RPC works in order to set some rules un a stateful firewall, allowing RPC between a client and a server. After reading some documentation I have The client contacts ...
Cod1ngFree's user avatar
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1 answer
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windows firewall rpc 135

I'm dealing with a Windows Server 2012 R2 Datacenter. It's a hosted Server and fully exposed to the internet, ie it only has a public ipv4 address. This setup is neither my choice nor can I change it -...
Thomas's user avatar
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Windows Server 2012 member server reports - there is a time or date difference between your computer and the remote computer

PROBLEM Domain member service reports the following when attempting to RDP from any Windows 10 workstation on the same domain or any Windows client from an external source: Remote Desktop cannot ...
scott_lotus's user avatar
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"RPC server is unavailable" - port 135 shows filtered - NO firewall

So I have a pair of 2003 Domain Controllers which seem to have problems replicating. After running netdiag, dcdiag I figured out that there is an RPC problem, so I tested the connection with portqry....
meresgr's user avatar
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Usage of libvirt rpc protocol

Where libvirt rpc protocol is used? Is it used inside remote connection communication? I have read that it used between libvirt library and libvirt daemon.
Anastasiya Ruzhanskaya's user avatar
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TermService not working

my company stumbled upon this issue last week and it took us a while to find a solution. We didn't find anything similar on the net so I figured I might as well try to help others. We had a Win2012 ...
Arnaud CORNELY's user avatar
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Backup Exec Server is establishing connection to unknown host outside network

Backup Exec produces a large amount of entries in my firewall. It tries to connect to a host outside my network on TCP Port 135 which is normally used for RPC. As I noticed this I logged on that ...
davidb's user avatar
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2 answers
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Error: "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)" when using CNAME

Running Get-WmiObject Win32_ComputerSystem -ComputerName 'MyCnameRecord' gives error: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA). However running Get-WmiObject ...
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cassandra unable to create thrift socket

I do not know why i am not able to enable thrift protocol on cassandra. in cassandra.yaml rpc_start=true port=9160. OS centos 7 iptables not running firewalld not running cassandra ver 3.7 (...
Raffaello's user avatar
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2 answers
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What is a practical difference between RPC and FaaS?

There seems to be a lot of hype around serverless computing these days and I try to understand what is the major difference between the remote procedure call framework? As far as I am concerned - it ...
Dzh's user avatar
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Nginx proxy_set_header Host for RPC management

We're experimenting with an RPC service (linkerd) that acts as a glue between our microservices – reading off their locations from a local Consul cluster etc. Now Linkerd expects to see the Host ...
Ashesh's user avatar
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4 votes
1 answer
35k views

How to block 111 udp port via iptables?

I've got an issue related to block 111 port only for udp. For tcp it was blocked without any problem. This port is used by application rpcbind. I test it via netcat. This is my iptables. It contains ...
ANtlord's user avatar
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1 vote
2 answers
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RPC Server is unavailable while trying to promote a domain controller. Open firewall

So I've been scratching my head around this problem for a few days now. This is a quick schema of our infrastructure : Our Primary Domain Controller is running in an hypervisor, in our datacenter. ...
Matthieu ANTOINE's user avatar
2 votes
1 answer
664 views

What is the difference between setting the DTC port range via Registry and dcomcnfg?

I am confused about setting the port range for DTC communication. What is the difference (functionally) by setting the ports via dcomcnfg as described in this NServiceBus Article versus configuring ...
Robin's user avatar
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Remote Computer on Event Viewer, RPC server is unavailable

I am connected to a Domain Controller, as the Administrator via RDP. Server 2008 R2. I am trying to connect remotely to the event viewer of a machine on the domain. When I go to connect to another ...
SQLSam's user avatar
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1 vote
1 answer
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showmount -e fails from one node

When I run: showmount -e <IP> rpc mount export: RPC: Unable to receive; errno = Connection reset by peer mount <IP>:/path /mnt mount.nfs: Connection reset by peer But mount -t nfs -c ...
user192749's user avatar
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584 views

Exchange 2007 RPC over HTTPS, basic auth, password prompt bypassed by clicking 'need password'.. desired behavior?

I can't handle the incessant password prompting anymore.. Our Outlook installations prompt for a password after the comps wake from sleep and/or when changing between wired/wireless. Outlook DOES ...
goofology's user avatar
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On CentOS, rpcinfo uses unusual source port when run as root

In doing some testing with the rpcinfo command on CentOS 5.10, I noticed an interesting feature. When running as root, after the connection occurs, viewing the socket table with netstat -natup shows ...
Jeremy Dover's user avatar