Is it possible for a client to "export" or "send" it's /dev/cdrom0 to a server via SSH? I have managed to st up a connection with Xserver so I can see the servers gnome interface in my ubuntu client.
View 9 RepliesIf you have a proxy and receive/send data from/to both the client and the server,is there a way to test what part has data to send(client or server) ?
View 1 Replies View RelatedI am running Debian Squeeze with the following basic services running:DNS
DHCP
Samba
Squid
The server is setup with three NICs: eth0 (WAN1), eth1 (WAN2), and eth2 (LAN).The server addresses clients with an IP range of 10.0.30.1 - 10.0.30.254. Some clients will be set with reservations so they fall into the 10.0.40.1 - 254 range.
What I want to do is have any outgoing external traffic coming from the first range (10.0.30.0) to use WAN link 1, and any outgoing external traffic coming from the second range (10.0.40.0) to use WAN link 2.
I have sort of got something working. I have created a bare minimum transparent squid3 setup on port 3128, and set the iptables as follows:
Code:
iptables -t nat -A PREROUTING -i eth2 -p tcp -m tcp --dport 80 -j DNAT --to-destination 10.0.0.1:3128
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128
iptables -t nat -A PREROUTING -i eth1 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128
I can get internet access, however obviously it only goes through one WAN link. It also seems slower than it should be. I experimented with tcp_outgoing_address, but seemed to not be my friend.
I have set up postfix and dovecot as per the Ubuntu anual and appear to have a functioning mail server.Using the sendmail command I can send mail and I receive mail in ~/Maildir. Using Thunderbird I can read any mails received but I can't send any mail from Thunderbird. I have tried with both STARTTLS and SSL/TLS and whilst I get the prompt for a password I keep getting the message my password for my server is wrong.I have ports 25, 465, 587 and 993. Is that all the right ports?When I ping my domain name it resolves to my router name whereas I believe it should resolve to my IP. Could there be a problem with my host file? I've had a play but to no avail.Here's the error in mail.log.
Code:
westwood@westwood-desktop:/etc$ tailf /var/log/mail.log
Jun 1 19:00:33 westwood-desktop postfix/smtpd[2376]: warning: localhost.localdomain[127.0.0.1]: SASL LOGIN
[code]....
im trying to send pages of 4096 bytes from kernel layer of server to kernel layer of client over a network. previously i tried the foll. code , for data less than a 100 bytes it worked fine , but for something larger than that the computer hangs......(even the dmesg's wont say why) i also wanted to know how we could use the 'sendpage' function to solve this problem.
Code:
CLIENT'S KERNEL MODULE
struct iovec iov;
char buf[1024];
[code].....
How long normaly keep the mail server send mails on the outbox queue and try to send? What about hotmail, gmx and gmail mail server?
View 1 Replies View RelatedI 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.
I installed the mount/unmount scripts off this site [URL] so i mounted an iso image, something went wrong and ubuntu could not mount my DVD drive to view my cd/dvd after i had to fix it with the unmount script but now every time i turn on my pc the folder /media/cdrom0 opens which is my dvd/cd drive, and still opens even with no disc init as you see in this ss do you see the bar says /media/cdrom0? this time in the ss it has a cd in the drive but other times opens regardless if there is one or not [URL]
View 3 Replies View RelatedMy cdrom was working just fine until I updated. Now I get mount: special device /dev/scd0 does not exist
View 4 Replies View Relatedi have a client and server program in C. in that program server is requesting some parameters from client (like systems up time, total memory, no of process running etc).for this i used switch statements. but the problem i am having with this is that,
1. it is always going in default case on client side.2. and i also want my program to send requests/messages to client periodically. means after some interval (say after every 2,3 mins) server sends next request to client.
I have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.
[code]...
then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.
Hi
I want to send non get request for HTTP from linux server.
Please let me knwo how to do that
Thanks
Lakshmikant
I am able to reieve message but not able to send message on evolution from my mail client. evolution gives the error as: PHP Code: Cannot get message 1285571362.20345.mail312.opentransfer.com,S=1928: Input/output error
View 1 Replies View RelatedI have configured Sendmail client to send mail to outside network ( Within local domain ), but i am unable to send any mail as i am getting the following error,
[root@cclx10 mail]# cat test |sendmail -v abhilash-o.padmanabhan@hp.com
abhilash-o.padmanabhan@hp.com... Connecting to [127.0.0.1] via relay...
abhilash-o.padmanabhan@hp.com... Deferred: Connection refused by [127.0.0.1]
I have the following configuration in my "/etc/sendmail.cf" file
# SMTP daemon options
O DaemonPortOptions=Port=smtp,Addr=15.146.237.113, Name=MTA
And netstat is showing that sendmail is listening on Port 25 on the IP address which is mentioned.
[root@cclx10 mail]# netstat -an |grep 25
tcp 0 0 15.146.237.113:25831 0.0.0.0:* LISTEN
tcp 0 0 15.146.237.113:25 0.0.0.0:* LISTEN
I have 2 clients (one IP 200.x.y.52 and another 200.x.y.47) in ADSL conection and a same gateway (200.x.y.1).
When the server send an email, the error "No route to host" appear. I used TELNET 200.x.y.52 25 (110 soo) and the error occurr in both servers and both directions. The Firewall was disabled .
I'm trying to configure postfix so smart daemon can send out notifications emails. My system will need to send emails to a mail server that is on the same local network. I have not had much luck in getting this to work, and am confused on what I need to setup to do this and how to set it up. Does my system need to be apart of the same domain as the mail server? If so, how do I do this? Is there any restrictions sending emails from the command line as the root user? Do I need to configure a relayhost?
Basically all I need to do is send emails to a local mail server, i.e. a mail server on the same local network. I do not need to receive emails. I am rather clueless as to how to set this all up, and what I need for this basic email functionality. I have read and tried many postfix configuration tutorials, but when I try to send out a test email to a email address on the local network mail server I always get "Connection refused" to the server and deferred or bounced status on my test email.
I have a wireless router situated in another room. I am able to access this router (and consequently the internet) through a Windows laptop that has a wireless card in it. However, my other laptop that has Ubuntu 10.10 installed on it, doesn't seem to have a wireless card in it, and I have confirmed this by running the commands
Code:
lspci
and
Code:
iwlist scan
I briefly was able to share a folder in my Windows machine, and access it through my Ubuntu machine, after connecting both laptops with a cross-over cable. However, I can't even ping the Windows machine from my Ubuntu machine anymore, after trying to configure the IP addresses. I think I screwed it up.
Also, although this is not an Ubuntu issue, I have a weird Windows problem, where I can't access the Internet when both wireless and wired ethernet controllers are active at the same time. It would be a bonus if you could solve this problem too for me. I was surfing online for a solution to this problem for quite some time, but I was unable to comprehensively understand and implement what I browsed through. Also, some of the guides, like for example, that on configuring Samba, seem to be outdated, as the terminal tells me something like the package (that was required to be installed by the guides through sudo apt-get install) has been superceded. Hence I post here for clear, concise and easy-to-understand help from you gurus. It would be great if I could achieve the end result of being able to access the internet on my Ubuntu machine (through the Windows one).
I'm trying to synchronize a client with an ntpdate server. The ntp.conf file from the server has the following lines: # /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for
driftfile /var/lib/ntp/ntp.drift
# Enable this if you want statistics to be logged.
#statsdir /var/log/ntpstats/
statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
[Code]...
How I am configure DNS Client and server in Redhat Linux 4 in my lab.I have total 5 computers and they are Lan connected.I want to make one of them server and the others are client.
View 1 Replies View RelatedI'm trying to setup a linux box to act as just a DNS server. Its something I'd like to use just for WAN type requests and leave other domain related things to the Server running WIndows.At this point on my Linux box, I can run queries and nslookups from it. I can not however, from a Windows box, run a NSLOOKUP command from the Linux box which is telling me to check the permissions from Linux to enable that for the clients. It's enabled.From a C: I type in nslookup - *ip of Linux box* and it tells me -- Can't find server name for address.
View 4 Replies View RelatedRunning Linux Fedora 10 on an Intel Core 2 Duo PC. Runs great. We are trying establish VPN between a client and server on the same LAN. The network is a standard fast ethernet, run great. We are trying to install OpenVPN server, but having a little difficulty. Key and certificate builds seem to execute without a problem. But when we try to start the service we get [FAILED]. I've attached a copy of our procedure.
View 1 Replies View RelatedCan we create both server and client on the same system. I want to know whether it can be used on the same system.
View 7 Replies View Relatedin my office all users connect to internet via VPN.in our office there is one special server that we want when users connected via VPN,users can not connect to the special server and when users are not connect to via VPN can connect to that server.
View 3 Replies View RelatedWe have a problem with tcp link.
Os version: linux 2.6.9
Client will connect 2 tcp links to server.
One link is ok but another can't.
From tcpdump, we see:
1. client SYN-----> server
2. server SYN/ACK---> client
3. client ACK ----> server
4. client data ----> server
5. client retransmit data some times ----> server
6. server SYN/ACK ----> client (weird, it look like server miss the step 3)
I want to setup an email client in order to send/receive emails, but since i am experiencing some issues with my ISP, i decided to setup an SMTP server with Postfix on my machine.The problem is that i can receive emails but i can not send.I read almost every thread in here refering to Postfix, but i could not find the problem on my configuration.So here it is..
Code:
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
[code]....
I'm trying to set up a basic smtp server on my local computer that I can send basic, unencrypted email through on port 25. I installed postfix, and I chose the following options:
Internet Site,
System Mail Name: localhost
Root and postmaster mail recipient: I left this blank
For other domains to accept mail, I entered : NONE, localhost
No force synchronous mail updates
Local networks: 127.0.0.0/8
[Code].....
I have an Ubuntu server that is currently running Ubuntu 8.10. I was thinking of making it a VPN server for my iPhone and also for my laptop whenever I'm outside and need to access internet over insecure wireless networks. Now that part should be easy I found several guides on how to configure OpenVPN server, as well as enabling clients on iPhone, and OSX.
However, the things is that my server is currently a OpenVPN client also, I have a paid tunnel set up to bypass my ISP blocking incoming traffic on various ports. Is it possible to keep this setting but still enabling a VPN server? Essentially causing traffic from my external device to go in through my tunnel to the VPN server, and then out through the external VPN provider.
I'm currently successfully using the Terminal Server Client to connect to an SBS 2003 server at a remote location. I've been trying to figure out if it's possible to connect to any of the XP machines on the LAN behind it. I currently have to use RWW in IE on a VirtualBox XP machine to do that, and I'd love to be able to get rid of VirtualBox completely.
The server has 2 NICs, one connected to the internet, and the other connected to the LAN. There is only one public IP. The computer I'd most like to connect to has a static, private IP. Anybody done anything like this or have any thoughts on how to get it to work?
I am facing connection refused error 111 in TCP client server program, in android native code which in C , but if code is in JAVA it works fine, but i want to continue in C only, in manifest file i have given permission and ip, port is correct .What am doing wrong?? or is their any network setting?? am using UBUNTU 10.04and If both client server Linux pc it works fine. only if android emulator becomes client then am getting connection refused
View 1 Replies View RelatedI have about 5 computers on my network that get their internet connection from a Linux NAT server.
192.168.12.02 is a Linux server that has a NAT set up to share the internet connection.
192.168.12.03 is a download server that is almost always downloading
192.168.12.05 - 192.168.12.20 is assigned by DHCP to users.
I want to make it so that the download server runs at full speed but is throttled only when someone from the user IP addresses range tries to use the NAT server.I think I'm looking for some way to set the download server's packets to have a lower priority than the client's packets. Is there a way to set this in the Linux server?