General :: How To Specify Which Port Mount (NFS Client) Tickle Server
Jul 3, 2011
I have nfs-server installed and running on my Ubuntu 10.04 server. I have some directories exported. I can connect from my Ubuntu 10.04 PC using the commands:
sudo mount taylor10:/data0 /t10/data0
sudo mount taylor10:/data1 /t10/data1
sudo mount taylor10:/data2 /t10/data2
sudo mount taylor10:/data3 /t10/data3
However, when I have my firewall on the PC enabled (Firstarter) I cannot make the mounts. I have ports 111 and 2049 open. If I stop the firewall, do the mounts and then start the firewall I am still mounted to the nfs shares. The connection is on port 2049. I have observed that when the firewall is enabled and I issue the mount command I get traffic on a random port such as 46694, 37022, etc. I have found instructions regarding editing /etc/default/nfs-common but they seem to control the port the server is listening on, not the port which the client is asking on. How do I lock down the port which mount and/or the nfs client is using to talk to the server to make the initial contact.
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Jul 12, 2011
I've setup an NFS share on my Fedora 15 host of which Google'ing told me that it had changed radically from the old NFSv3 config. Ie. no more /etc/hosts.allow or /etc/hosts.deny files.....My current setup is this..../etc/sysconfig/nfs:
Code:
#
# Define which protocol versions mountd
[code]...
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Feb 9, 2010
i have installed nfs server on my redhat machine.when i want to mount shared data from client(suse)machine the following error occur. "mount.nfs: mount to NFS server '10.3.31.146:/home/usbtest' failed: System Error: No route to host" both machines ping each other successfully.
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May 14, 2010
Both server (web01), in DMZ, and client (app01), intranet, are Linux OEL5.5.
A few hints follows:
1- I ssh to web01, in DMZ, from a intranet machine on my desktop, export my DISPLAY, and try to bring up xclock; nothing happens.
2- traceroute from web01 to app01 fails.
3- NFS mount from web01, nfs server, to nfs client, app01, fails.
How should my network configuration on web01 or app01 be to make this NFS mount from web01 to app01 work?Each server has 4 NICs, I've only used eth0.
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Mar 24, 2011
I notice that my bittorrent client is capable of automatically setting up port forwards with my router, and I want to know if I can do the same in a shell script. The reason is, that since my router is stupid and won't let me keep static IP addresses (it seems they forced a DHCP refresh every week to make me want to pay for a more expensive model which doesn't), I need to get my computer to change the port forward to follow my computer's changing internal network IP address. I have a couple of port forward manually entered into my router settings for web interfaces to bittorrent etc, but of course these have a good chance of being invalidated at each DHCP refresh cycle.
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Oct 21, 2010
VERY new to linux, erm but I have an issue that needs solving!I recently moved to university, where their network blocks sftp port 22, this means that I cannot connect to my FTP server which is running a version of linux.Now I've got this ftp server connected to a seedbox and it was created using the following walk through..Code:I have written this guide for a friend, but I though it would be useful for others as well.
There are several guides floating around, but I found that most always cock up in some way. This one is tried and tested to work on Debian Etch (on an OVH rps, but should apply to most servers).If there is a new stable release of rtorrent/libtorrent then I will update this guide to show you how to update it (without reinstalling the whole server).
At the bottom there are also instructions to install ftp access & some network monitoring software.Basically, I would really like someone to be able to construct the commands on how to change the listen port for sftp connection on linux or add another port to the list that Linux would use so that I could put in through putty.
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Aug 27, 2010
I installed NFS and portmap for export a folder to another PC. /usr/local. ftp is server's hostname and ws01 is client's hostname. I edited file /etc/exports with next text: /usr/local ws01(rw,root_squash) *(ro)
I restarted service portmap and nfs. From client, I try check connection with server with command: showmount -e ftp and result is: mount clntudp_create: RPC: Port mapper failure - RPC: Unable to receive
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Jun 11, 2011
I configured openLdap in RHEL5 on virtual achines,everything is working fine, I created a user called ldapuser,in LDAP server and i created a home directory for ldapuser in my LDAP client, now i can able to login to the both Server and client with ldapuser account....
Now here what am expecting is i want to export my server's home directory to the client, i dont want to create home directories manually in the client machine, i googled about that, and it can be done through autofs.....
what need to be done on the client and server side.
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May 2, 2010
I have a mail server i need it to send message via port 587 not port 25, i make some changes to my postfix server which i use and it is already successed making a telnet to 587 port like it :
[Code]....
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Mar 21, 2011
I'm working with OpenSusse 11.2. I installed and activated the NFS server via yast2. I exported the relevant directory via yast2 (NFS server configurastion)
I'm trying to setup my Linux target to boot via NFS. The kernel boots up but fails to mount the file system. When looking on a capture from ethereal it can be found that the NFS server return error when client try to mount the /nfstest directory from this server. The returned error is 13
serverip: 192.168.56.130
targetip: 192.168.20.180
gateway: 192.168.20.101
[Code].....
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Jul 27, 2011
Well I have been searching for more than a month now and I think I have read every single post related to this subject and finally decided to make a thread.
Now before I begin I am running Openvpn on my CentOS VPS. I have set static IP's for everyone.
Now what I am looking for is this lets say one of my clients wants port 60005 forwarded through my VPS to the internet what are the correct commands to run.
server-ip:60005 to loacl-ip:60005
Sever IP 24.xx.xx.xx
Client IP 192.168.1.2
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Oct 1, 2010
I am working with simple tcp client to establish connection to sockaddr_in servAddress and send data segment:
...
connect(sockfd,&servAddr,sizeof(servAddr)) < 0)
send(sockfd, pkt, pktLen, 0);
close(sockfd);
...
Elementary... Here's the tricky part: next i have to handle user level ack the server is sending to "client"... To do that i have to open server socket on the same port number the system assigned to my client socket before. How can i get it ( in user level code)?
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Jul 29, 2011
i tried to connecting from a windows7 client to a linux server through vnc server.But its very slow , is there any alternative for vnc . i heard that samba can be used as a remote desktop tool if its true please reply with configuration details.
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Mar 9, 2010
I set up an ssh server and configured port forwarding on my router so that I can access the ssh server from the internet. This is working fine, also from within the LAN.
Additionally this machine should be connected to an VPN Server on the internet. Again, this is working. I get connected, the tun interface is coming up, etc.
The moment the VPN Connection is established I can not connect to the SSH Server anymore from the internet, LAN ist still working fine. I guess it has something to do with the route that is set by the VPN Connection?!
So my question is, what do I have to do to reach the ssh server from the internet while the ssh server is connected to an VPN Server itself.
ifconfig without VPN
Code:
eth0 Link encap:Ethernet HWaddr 00:1c:c0:c4:df:80
inet addr:192.168.2.10 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::21c:c0ff:fec4:df80/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code]....
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Jan 2, 2010
configuring my postfix server to send mail over smtps port 465. My ISP (as is the case with many ISPs), is blocking outbound SMTP, so I need to configure postfix to relay my mail out through my ISPs SMTP servers.
I was able to get it to work with gmail, which uses port 587, by using SASL: [URL] but that configuration is less than ideal as gmail drops the "reply to" address so when people receive my email, it looks like it's from gmail instead of from my server.
If I use my ISP SMTP servers as a relay the "reply to" address is not stripped, but the relay uses ssl over port 465 instead of TLS. According to the SASL readme:
Quote:
Postfix does not deliver mail via TCP port 465 (the obsolete "wrappermode" protocol). See TLS_README for a solution that uses the "stunnel" command.
I've looked at the TLS_README and can't figure out what I need to do. how to configure this?
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Jul 29, 2010
I have a Windows machine on which NX Client has been installed. I wanted to test if I could access my Ubuntu box. The Ubuntu Box has NX Server, Node and Client installed. When I try to log in from the Windows machine using NX Client with my Ubuntu username and password I get an error connection refused.
The following service is running: OpenBSD Secure Shell server sshd How can I resolve the issue?
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Apr 7, 2011
I have remote server and when I want to connect to it from internet I need to choose port 2222. I tryed to do it using filezilla, gftp, it can be done. Because they want from me to use default ssh port 22
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Apr 9, 2010
I have an internal network behind a server <10.0.0.1> connected to the internet that NATs my ip <10.17.11.88> only. NAT is not allowed to any other ip addresses. When I use Transmission Bittorrent client to download torrents, The thing is that this 10.20.0.244 is not my machine and doesn't have access to the internet at all. What is happening here? Can anyone help me?
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Aug 5, 2009
If I forward port 80 to port 3128 for squid with an iptable rule, does port 3128 have to be open on the firewall or is this all routed behind the firewall?
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Jul 1, 2010
server: LAMP - debian, apache2, mysql, php5. a bit info on my network: There is a another service here that already uses port 443 already. It made my website time out, hence the move to another port. PLus, i dont want the 2 services sharing the port. What I am trying to do is forward 443 requests to another port where the SSL service is running so I can hide my port number in the URL.
Here is my sites available conf file:
Code:
NameVirtualHost *:80
NameVirtualHost *:443
NameVirtualHost *:####
[code]....
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Mar 28, 2010
After I applied below iptables rule.. I am unable to ping the host in 172.16.1.0/24 from OpenVPN client
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Jan 5, 2010
I have a doubt regarding the 389 Server Client Architecture. Say, I have 389 Server working and I have few Linux Clients. Now you say that if 389 client is configured it will login through credentials which is configured in Server. So what about the local Users on that Client.How will normal users in the Client login?
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Jun 25, 2009
I have a Nis server on Suse 11 which is configured using Yast and nis clients on Suse and CentOs .All clients which is on the Suse Os is working fine. But on CentOs , users couldn't login using nis username.I have mounted home directory using nfs in fstab . I can switch to nis users homedirectory only when i am root. But nis users could'nt login on reboot.' ypcat passwd username ' is showing the output . No selinux is enabled in the client .Is there is any problem with Suse server to Centos Client in nis ??
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Jan 27, 2011
I want to open 177 port of remote server for mypc.com.
Code:
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 177 -s mypc.com -j ACCEPT
I wrote this at iptables, but I could not connect mypc.com with remote server.
Kindly let me know what I am wrong?
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Apr 6, 2011
I edited "sshd_config" file and changed port 22 to a new port. After I restart ssh, it listens on port 22 and the new port. How can I disable SSH to listen on port 22? I'm using Debian.
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Aug 5, 2010
i am pursuing rhce... i amn't get the concept of yum..
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Nov 7, 2010
I have problem with the server,when i restart my server client is still running it is not able to connect to client.i want my client to connect to server after the server restart
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Mar 17, 2010
I have ssh access to a red hat computer in my network which has internet connectivity. i have downloaded a particular tarball to that computer using wget. Now how can i copy that file to my system.
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Sep 25, 2010
I have NIS and NFS Server in Linux EL5 and i want to make client as windows..How to make windows as client for Linux server..Can any one explain me more detail.
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Oct 18, 2009
Below you will see the history of the download and install. This is Ubuntu Ultimate that I am using...
sudo apt-get install openssh-server openssh-client
Reading package lists... Done
Building dependency tree
Reading state information... Done
[code].....
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