Is that possible?That would be ideal scenario.
1-ServerB has id B.
2-workStationA use id B to login.
3-if any other ip other then workStationA tries to log to ServerB with id B, server B will drop the connection.
I run a small website, and the customers need to contact me from our website,and I run sendmail, but I get lots of spam, they use my sendmail to send spam, here is the ps aux: all those url are spam url, and slow my vps down.I believe I need to use SMTP to accept connect so that my customers can contact us from our website, (plz correct me if i'm wrong..I'm new to those stuff..)by the way, we did not need to receive any email from the sendmail server,
View 2 Replies View Relatedmy iptables Policy is Drop..my server ports is open just for httpd,ssh .Is there any rule which can allow all connection from a specific program for ex. i want to scan an ip Address ports.as you know nmap connect to every known port to see if that is open or not so, if i want to allow nmap to connect, i need to include all ports for that, or i can allow connection from localhost to outside in all ports .my server is very secure . i dont want other programs (probably a backdoor) use those ports to connect outside i want to know is there any ability in iptables which can rule connections by name of program like "Allow any Connection from /usr/bin/nmap to everywhere " ?
View 2 Replies View RelatedI am able to telnet to the server via a remote connection, but for some reason, it will not accept mail. ere is the bounce back email I am getting.Quote:This is the mail system at host smtp.mydomain.net.I'm sorry to have to inform you that your message could notbe delivered to one or more recipients. It's attached below.For further assistance, please send mail to postmaster.If you do so, please include this problem report. You candelete your own text from the attached returned message.The mail system
<root@mydomain.net>: temporary failure. Command output: pipe: fatal: pipe_command:
execvp /usr/bin/perlbin/vendor/spamc: No such file or directory
Reporting-MTA: dns; smtp.mydomain.net
[code]....
I'm using fedora core-8. I need to setup dialup server to accept dial up connection.Dial up server shoudl also allocate ip address to client (trying to connect using modem)If some one knows how to do this, please let me know.I'm trying to achieve peer to peer communication between two computers connected using modem on both side over PSTN line.
View 2 Replies View RelatedCan I make Yast/Ldap accept usernames that start with a number. All our current users have the format 09-first.last or 10-first.last etc.
View 2 Replies View Relatedi have two questions and thought that anyone here could have the answers.first things first,i want to make firewall accept a range of ports (say 8000:9000) because im using mpd process manager to make some parallel processing, does anyone know the command that satisfy this?
the second thing is, when i open a range of ports like that, it would put my system at risk if some bad guys somehow identifies this range, is there is anything that solves that matter(i.e. makes the firewall monitor the packet, if its an mpd accept if not drop)
It seems xdg-su is unable to accept my admin/root password whenever I try to install a new AIR application or make an upgrade.Upon every attempt to add my admin/root password I get an error: "su: Authentication failure". In the end: "Error# 5100"!I have recently upgraded to Lucid, but the problem has arisen back in Karmic.
View 1 Replies View RelatedLinux printing appeared to be working fine up until yesterday. Today typing lpq gives the following: lpq Printer 'sdst@other.domain' - cannot open connection - Connection timed out Make sure LPD server is running on the server
The /etc/cups/printers.conf file is properly set, the printers appear in localhost:631 and they are printing test pages. However, all command line print commands seem to be trying to print to sdst@other.domain I don't know why printers.conf is being ignored and why and how sdst@other.domain was added. Seems like it might have been auto-discovered?
# dit: sdst@other.domain was mentioned in /usr/local/etc/lpd.conf I'm not sure why lpd.conf is being used instead of /etc/cups/printers.conf
i want to use internet on red hat linux through dial up connection. presently i am using internet using my cell phone as modem through blue-tooth.But i want to use internet on red hat through my cell phone. is it possible?i am using nokia 2630 handset.my bluetooth dongle is not supporting linux.please tell me from where i can get a bluetoothe dongle that support linux?
View 14 Replies View RelatedI'm working with linux opensuse 11.4. It recognizes the wired ADSL connection but it does not recognize the wireless connection. how to make a wireless connection in this os?
View 2 Replies View Relatedcan any one there tell me how to make broadband connection dialer on linux which ask for username and password as on windows for connecting to the internet
View 3 Replies View RelatedIts very easy to make DSL connection in the windows operating system.But I do not know how to configure my system to make connection on Linux.Anyone can suggest me what type of modem and router i should have to use to make a connection on the linux.If there any commands to make connection then mention it.
View 2 Replies View RelatedI,m new to linux. I don't know how to do settings for Internet connection.
so, please send me complete detail of how to make settings for Internet connection.
I am running an Ubuntu Server on a VirtualBox VM running on my windows machine. So I've created a self-signed certificate using the following tutorial: [URL]
From this tutorial I'm left with 3 files:
server.key
server.csr
server.crt
Then I found this very similar tutorial that has an extra bit on installing the certificates in apache: [URL] So I followed it's instructions which boil down to this:
[Code]...
So I'm thinking this should work now. However in Chrome I get: SSL connection error Unable to make a secure connection to the server. This may be a problem with the server, or it may be requiring a client authentication certificate that you don't have. Error 107 (net::ERR_SSL_PROTOCOL_ERROR): SSL protocol error. IE8 gives me a typical "Internet Explorer cannot display the webpage" Note that [URL] fails while [URL] works fine, so it's definitely something in my ssl setup I'm thinking.
I can make a connection to the vpn server, the connection starts, but nothing happens! My IP address remains the same as previous! There is nothing added to my Knetworkmanager, I'm a beginner I should use a pcf file for my vpn connection. I use it properly, I'm sure because the connection starts and an icon is added to my panel and remains until I disconnect.
I checked it via ifconfig -a, the last part (which is for vpn) is:
Code:
tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:141.213.169.76 P-t-P:141.213.169.76 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1390 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
Is there a way to make ncftp hold the connection open longer than the default? a ping every 10 sec or something? I feel like after I push a change up to the server before I can verify everything is working as expected and get back into ncftp the connection is closed by the remote host.
View 1 Replies View Relatedremains in 'readonly despite rwx in /dev/sda and does not accept to copy into it. mounted correctly.
View 3 Replies View Relatedi have to agree the term of agreement before runing it becase i want to automate my installation with a scripti have already tried "yes | ./myfile " but the problem is the agreement is more than one page and i need to hit space couple of times .. so it's not working .
View 7 Replies View RelatedI am not a new user of linux but the last time I used linux was five years ago.
I am having a hard time using less. It dont want to accept commands immediately. I need to press 'Enter' to accept the command.
Like if I press 'q' to quit, it will echo 'q' and dont do anything. I have to press 'Enter' to make it quit. Same with other commands.
I am using Windows PuTTy 0.60 with ssh to connect to linux machine.
The linux system is: Linux <removed> 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:19 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
The less version is :
less 394
Copyright (C) 1984-2005 Mark Nudelman
I dont have any problem with vim and more. Only with less.
I have also tried changing the TERM from xterm to vt100. But still the same problem with less.
I installed webmin, and I tried to access it with my account (not root, but able to sudo) and I always got login failed.Now I have Access Denied even to my login page for too many tries. What should I do?
View 1 Replies View RelatedI have a Redhat server that it is allowed rcp file from remote server, it is strange that after I modified the .rhosts, the server is no longer to accept rcp file , even I use other user to rcp files , the error is still "Permission denied", can advise what is wrong ? what daemon that I can try to restart ?
View 5 Replies View RelatedWhen I was trying to configure PAM on a RHEL5 system, I put the following configure in /etc/pam.d/system-auth:
password requisite pam_cracklib.so minlen=15 try_first_pass retry=3 dcredit=-3
The option dcredit take effect, as a normal account I cannot enter a password that has less than 3 digits, but minlen=15 does not. I can still enter a password with the length about 12 characters.
Why does ping see audit.median.hu as 127.0.0.0, and why does host -t a audit.median.hu see it as 193.68.35.149? audit.median.hu is just an example site [hosts ads, etc.]
I just have a caching nameserver on my Fedora PC:
I configured my DNS server addresses in the Network-Manager Applet: 127.0.0.1, 8.8.8.8
Even with Wireshark, I can see it:
So the big question: Why don't the host command or my web browser recognize that I have modified audit.median.hus IP address?
I am using a ubuntu 10.10 desktop,i cannot login to my system it doesnt accept the password. when i login in safe mode i get through but when i run any command i get segmentation fault.
View 5 Replies View RelatedI am getting an error as below.
How do I resolve the error: make[2]: *** No rule to make target `', needed by `mpg123'.
How can I resolve this error.
The UMTSmon correctly recognizes my mobile phone with operator info and signal strength etc but I can't tether my phone in Network Manager. It says "Unable to open device /dev /ttyACM0" When I try UMTSmon, it o/p "PPP could not make a connection" And a window which gives the following error report
Code:
PPP could not make a connection
PPP stderr -
authRequire authentication from peer
connect <p> Invoke shell command <p> to set up the serial line
[code]....
When I had Mandriva back in 2009, my Sony Ericsson mobile had some issues in connecting but in the end I managed to get it done using the control center. On the other hand, now I have the Samsung Wave which very different. But the old Ubuntu 2009.4 can tether both the sets easily from the live cd.I'm typing this from FF running from the live cd infact
Here is the connection information @Ubuntu's networking Manager !
Code:
Interface GSM (ttyACM0)
Driver cdc_acm
BTW,my system info:
Code:
PCLinuxOS 2010.12 KDE minime
AMD Athlon 3200 64bit
640 mb Ram
Asus K8S LA motherboard
Update: I tried Wvdial. It connects successfully but immediately disconnects ! Says "modem hang up" and gives pppd error 16. Btw, I don't have Kppp, only pppd and pppoe and two other files !
I have a computer with two hard drives that plugs directly into the modem. When I run on my Windows XP drive I can get internet. On my fedora drive I can not even get a ping. If I type ping google.com I get ping: unknown host google.com If I type ping 173.194.37.104 I get connect: Network is unreachable
View 4 Replies View RelatedI am trying to run Ubuntu 11.04 64 bit on an ASUS X53SV laptop. I configured the DSL connection (username and password), and it can't connect to it (the icon in the system tray keeps showing, that it is searching for the connection, and from time to time it flickers).I have tried it with ElementaryOS 64 bit and LinuxMint 64 bit (both based on Ubuntu), and either it is the same problem, or it doesn't even bother to look up the connection. I have also tried it with KiwiLinux (also based on Ubuntu, but there is only a 32 bit edition), and the network worked without problem (no sound though if jack plugged in - the same problem as with my old ASUS A3E laptop).
The network connection works fine under Windows 7.I have been careful when i introduced the username and password, so mistyping shouldn't be the problem.So what should i do, where should i look to try to get it to work?
I recently got a laptop computer and installed 64 bit fedora 11. I can make wireless connections fine but for my ISP I require a dial in using an username and password. On my desktop this is easy I just make a DSL connection under network manager and select eth0 my wired network card as the hardware and away I go. But now I can't select the wireless card as my hardware connection so my DSL keeps on trying to connect through eth0 which is obviously not plugged in. How do I go about making this connection? I have searched google and other people have this problem but I haven't seen any replies. I have tried using pppoe-setup and manually setting the hardware as wlan0 but this doesn't seem to work as under network manager it just defaults back to eth0.
View 7 Replies View Related