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.
135
questions
38
votes
7
answers
61k
views
netstat shows a listening port with no pid but lsof does not
This question is similar to Network port open, but no process attached?
I've tried everything from there, reviewed the logs, etc... and can't find anything.
My netstat shows a TCP listening port and ...
- 1,189
13
votes
1
answer
174k
views
What is the sequence of Windows RPC ports 135, 137, 139 (and higher ports)? What changes with Port 145?
Can someone explain when and how often each of the Windows RPC ports are used? The "core" ones I understand are:
Port 135
Port 137
Port 139
Higher ports that are published by Port 135's "catalog"
...
- 8,931
11
votes
1
answer
7k
views
What causes repeated linux NFS client side RPC credential refreshing?
Using nfsstat -c, I'm seeing a high "authrefrsh" (known as "newcred" on some systems) count on my NFS client pc for operations like ls and find on directories containing ~1000 files. This correlates ...
- 380
9
votes
7
answers
35k
views
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&...
- 179
8
votes
4
answers
31k
views
NIS failing to bind
I have a bunch of machines which authenticate via NIS to a central server. I just bought a new CentOS 6.2 client machine, and it can't authenticate.
The following is a list of the classics people ...
- 471
8
votes
3
answers
18k
views
NFSv4 not able to set any sockets for nfsd without running rpcbind
According to Red Hat docs 'rpcbind' is not required any more:
Because protocol support has been incorporated into the v4 protocol,
NFSv4 has no interaction with the portmap, rpc.lockd, and rpc....
- 3,168
7
votes
1
answer
11k
views
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 ...
- 535
7
votes
1
answer
3k
views
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 ...
- 1,089
5
votes
4
answers
20k
views
rpcbind - is there really no way to make the tcp ports bind to a specific interface / can nfs be ran without rpcbind?
We would like to move away from sshfs to nfs.
The last thing holding us back is the fact that rpcbind (which I assume is required for nfs to work) does not allow you to specify the TCP (not UDP) IP ...
- 1,048
5
votes
1
answer
1k
views
Why is rpc.lockd obscured from netstat/lsof output?
Prologue:
On a number of machines, which happen to act as NFS clients, netstat reports two ports that are open with no PID listed for an associated daemon. Ordinarily this might be a bit concerning.
...
- 25.7k
4
votes
5
answers
7k
views
How do I shut down a Windows XP box remotely from a Linux box?
I have Windows XP running in virtual machines connected to my local network for testing purposes. The tests are done remotely. When finished, I want to shut them down remotely, from a Linux box.
ETA: ...
- 1,022
4
votes
2
answers
30k
views
What is msrpc needed for on a Windows 7 workstation
I just ran an nmap scan against our network, and many Windows 7 machines have several high ports listening with Microsoft Windows RPC. Example:
Port Serv Process name
49152, msrpc [wininit.exe]
...
- 270
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 ...
- 43
4
votes
3
answers
19k
views
SQL Server Linked Server RPC Options?
When setting up a linked server in SQL Server (we're on 2005), you can set two server options:
Rpc
Rpc Out
Looking at the MSDN article, all it states is:
RPC - Enables RPC from the specified
...
- 447
4
votes
2
answers
1k
views
Exchange 2007 New SSL Certificate Breaks Iphone access
I recently had to acquire a new CA cert for my Exchange 2007 server for OWA and Outlook Anywhere (RPC over HTTPS). Since then, all Iphone access to Exchange accounts has broken. I have tried ...
- 264
4
votes
1
answer
13k
views
What is launching all of these rpc.statd processes?
On of our servers -- running CentOS 6 x86_64 -- we're seeing a lot unusual activity with rpc.statd. We have rpc.statd configured to run on a static port via /etc/sysconfig/nfs:
MOUNTD_PORT=892
...
- 44.1k
4
votes
1
answer
1k
views
netlogon errors
I have two instances of mssql 2005 and am using CA XOSoft replication. The master is a failover cluster and the replica is a standalone server. They are all running Server 2003 sp2 x64. Same patch ...
- 622
3
votes
2
answers
8k
views
NFS server + client : Recommended hardening / final touches
We have just setup a lovely little nfs share / client for the first time.
a) The UID for files on the client side, is showing up as 4294967294 when listed via ls, but the client is able to create and ...
- 1,048
3
votes
3
answers
2k
views
Throttle connections to web service if load gets too high?
I have a web site that communicates via XMLRPC with an XMLRPC server web service. (The web service is written in Python using xmlrpclib.) I believe that xmlrpclib will block while it is handling one ...
- 265
3
votes
4
answers
19k
views
Desperate: statd timed out, lockd cannot monitor / unmonitor
Since this afternoon something is wrong with the server. On the server side I see messages in dmesg as follows:
statd: server rpc.statd not responding, timed out
lockd: cannot unmonitor <client>...
- 200
3
votes
1
answer
2k
views
Remote Procedure Call (RPC) Performance in a Local Area Network
We use a database that has separate client and server programs and they communicate with each other using RPC. We have one computer running Windows Server 2003 SP2 and six workstations running ...
- 61
3
votes
1
answer
436
views
Poor NFS Performance Using Multiple Disks
I have a server system running Ubuntu 12.10 with 12 disks attached. I am sharing all of these disks on my 10 gigabit network using NFSv4. However, I am getting generally poor performance over NFS ...
- 63
3
votes
2
answers
2k
views
Solaris 11: Make sunrpc listen only on localhost
There is an open port 111 (sunrpc) that I want to secure. On a fresh install of Solaris, how can I get this to only listen on localhost? This, I think, would be a cleaner way than using ipfilter, if I ...
- 2,253
2
votes
2
answers
4k
views
Restricting RPC to a specific port in Active Directory
We have a site-to-site VPN connection between our main office and our production web servers at our collocation using two SonicWall devices. By default, the VPN tunnel allows all traffic between the ...
- 4,786
2
votes
2
answers
6k
views
apt-get purge portmap
i had rpc.statd open on port 111 on a relatively fresh install of debian squeeze. i did an apt-get purge portmap as i wanted to disable rpc services and close the open port on my box; i was presented ...
- 135
2
votes
2
answers
179
views
How are system admins deploying software across a network for OSX?
I'm looking for a solution for Mac that allows remote silent installs of software. I'm a system administrator that works for a company that has a network of both Mac and Windows computers. On the ...
Dave
2
votes
1
answer
1k
views
What is the importance of "RpcClientAccessServer" on a database in an Active/Active stretched DAG?
I have two sites with a stretched DAG between them. By "sites" I mean two AD sites that correspond with different physical and network circuits.
When I take an individual mailbox database and move ...
- 8,931
2
votes
1
answer
2k
views
Connect domain controller Windows Server 2003 to another one on Windows Server 2003
In Active directory, when I try to connect to another domain controller, after adding that domain controller and press ok, a message appears to me:
The following domain controller could not be ...
- 29
2
votes
1
answer
2k
views
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 ...
- 131
2
votes
2
answers
2k
views
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 ...
- 205
2
votes
1
answer
648
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 ...
- 23
2
votes
2
answers
1k
views
Linux RPC delete registration
there is a well-worked program (daemon) running on CentOS-5.4 that makes by itself RPC registration as program 191299 version 10.
After an unplanned program stop, the RPC registration is still ...
- 21
2
votes
1
answer
15k
views
RPC timeout between 2 linux servers
There are 2 servers in different routed networks.
I can ping, ssh from one to another via router, and nmap utility shows opened tcp:111 and udp:111 ports.
Also both servers show something like that:
...
- 21
2
votes
1
answer
495
views
Windows 7 clients connecting to MSMQ on Windows XP box fail - Seems like it is RPC failing
I have a XP box running some MSMQ public queues. Windows 7 clients cant connect to these, however Windows XP clients can. When connecting from my Windows 7 client with a MSMQ Queue Explorer program, I ...
- 1,553
2
votes
1
answer
1k
views
Issue Demoting Domain Controller
I am in the process of demoting a 2003r2 DC. I have set up a 2008r2 Server, set it up as a DC and moved all the roles over. Now I am ready to demote the older DC. When I run a dcpromo I am getting the ...
- 31
2
votes
1
answer
18k
views
Why is RPC connectivity broken for the Hyper-V Manager?
I have a Hyper-V Server 2008R2 (Core) with numerous VMs running. This Hyper-V server is a member of a domain.
Since the server has nothing running on it apart from the Hyper-V service, the only way ...
- 365
2
votes
1
answer
9k
views
NLB RPC server is unavailable on the specified computer
Firstly, I'll admit that my networking knowledge is limited so as people request more information I'll update this question accordingly.
I am trying to create a NLB Cluster across 2 Windows Server ...
- 131
2
votes
2
answers
657
views
DNS and RPC Unavailable
I have a server that is host a MSSQL database and some other server related tasks.
The server communicaties with a large number of devices. The devices send data to the server.
The communication ...
- 394
2
votes
0
answers
406
views
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 ...
- 121
2
votes
0
answers
1k
views
RPC Server unavailable. 0x800706BA [closed]
I've alsready seen some similar threads on the RPC server unavailable messages; HRESULT: 0x800706BA. I've read some and looked at the recommendations on this thread;
WMI query between two different ...
- 29
2
votes
2
answers
4k
views
How do I configure Windows Firewall to permit MSRPC?
I am trying to configure endpoint machines with a firewall that only allows white-listed traffic, and all other connections are blocked.
The client machines are desktops and laptops running Windows 7 ...
- 13.5k
1
vote
4
answers
1k
views
What is the fastest network technology these days to couple servers
I have 4 Intel 2 socket Xeon servers. What is the fastest network technology these days to tighty couple these together. Doing scenario planning with throwaway ‘less better’ results. The network use ...
- 244
1
vote
1
answer
26k
views
There are no more endpoints available from the endpoint mapper
I have a Windows Server 2008 R2 Datacenter part of a domain. The DebugView constantly spits out this error:
[5592] 5592: 2014-01-08 13:32:39.410 [DirectResult] Error (Id=0) System.Runtime....
- 443
1
vote
2
answers
2k
views
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 (...
- 163
1
vote
2
answers
2k
views
Unable to install libtirpc1 due to dependecies error
I want to run some binary (which is definitely working on another PC) on virtual Debian PC.
Debian 7.5 stable with added testing and unstable repositories. (I'm not an expert in this)
This binary uses ...
- 33
1
vote
2
answers
3k
views
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 ...
- 1,278
1
vote
1
answer
72
views
How does data flow in a password change with Open Directory?
I'm trying to troubleshoot an OS X OD issue and I'm having a hard time finding anything concrete about just how data flows between clients and server.
Specifically, I'd love to know what exactly ...
- 93
1
vote
1
answer
2k
views
Restart-Server Powershell Port
I just ran into a problem with my remoting project in Powershell.
I'm trying to remotely reboot a server sitting in a DMZ from within our intranet but get an RPC server unavailable error.
The RPC ...
- 13
1
vote
1
answer
1k
views
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 ...
- 21
1
vote
1
answer
5k
views
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 -...
- 13