I am a student in Information Technology . I have a question from the book of Mark g.Sobell . I could not find the answer for that .Why might you have a problem connecting to an FTP server in PORT mode?
View 1 RepliesI went and generated a self signed SSL .pem file ($1000 for a signed wildcard ssl certificate is out of my price range at the moment). I can connect to my server on port 26 when using STARTTLS but not SSL/TLS mode. I would like to be able to connect to port 465 on SSL mode, but I have no idea how.
View 1 Replies View Related1. Need to connect 2 CCTV DVRs and view from remote. 2. Can get a static IP address. But I dont know if this is a secure way since any once can view if the know the ip address. 3. Question is : is it possible to connect the DVR( s) to a linux server which will get user name and password before letting us view the DVR. Currently there is one set as follows: 1. From location X a device is connected to location Y using leased line and static IP (12 kms distance). In location Y a router is placed and port forwarding is configured. From Location Z using internet and remote desktop concept the device at location X is viewed and data captured. Is it possible to use a similar concept but with some sort of security authentication procedure in place.
View 1 Replies View RelatedIn a remote machine port 25 is open its enabled in firewall also...but not able to connect through telnet..why ?
netstat -an | grep 25
Code:
tcp 0 0 0.0.0.0:44525 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
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Code:
telnet 172.17.65.206 25
Trying 172.17.65.206...
telnet: connect to address 172.17.65.206: No route to host
I'm new to linux, and setting up the mysql database server.
Here are my situation:
OS: CentOS 6
mysql version: 5.5
I tried to use MySQL Administrator to connect to my database on the host 192.168.1.120
and my computer is under the same network with ip: 192.168.1.105
But it shows the error msg: Could not connect to MySQL instance at 192.168.1.120
Error: Can't connect to MySQL server on '192.168.1.120'(61)(code 2003)
On the server side I've tried:
Code:
skip_networking is off and I've set the port for it.
When I check the process in OS:
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When I try netstat:
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I thought it's the problem of firewall, so I have check it also:
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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.
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]....
Below is a print out of my partition Table from Fdisk, in Cylinder mode, Sector mode, and then in expert mode?
Why in expert mode does it look like Partitions 2 and 3 share the same sector / hd / Cylinders? Is this OK?
Code:
I'm looking forward to know how to connect to a remote server through SSH but from a specific port, so I con drop connections from random ports that's not the one I choose. Is this possible?
I have tried by setting up an iptables entry to forward output through both, PREROUTING and OUTPUT (one at each time, flushing when I can see that it's not working), in NAT table, so I can connect doing ssh localhost
Code: Select alliptables -t nat -I OUTPUT -p tcp -s 127.0.0.1 -d 127.0.0.1 --dport 4141 -j DNAT --to 192.168.1.2:4040
Unfortunately, it is not forwarding as I'd like.
I want to do this because I think that doing this will enhace the security, dropping connections of clients that are trying to connect from not allowed ports. I have already set up fail2ban and created SSH keys, not allowing to login with password, only key allowed. Will only allowing connections from a specific port will enhance the security or not really?
I have been trying all day today to setup a sendmail SMTP server on our Red Hat 5.5 dev box. We have 2 network cards, 1 to the local network with a 192.168 prefix and an external card which goes out to the web through a BT leased line through a Cisco router.
First I followed one of the many helpful tutorials online to setup sendmail, installed all the required packages and made a couple of small config changes to allow the service to listen on all IP addresses rather than just the localhost 127.0.0.1.
The main change is in the /etc/mail/sendmail.mc file where I have changed the following line;
DAEMON_OPTIONS(`Port=smtp,Addr=x.x.x.x, Name=MTA')dnl
I have tried removing Addr completely, setting to either the local or external IP and then rebuilding the sendmail file using 'make -C /etc/mail' and then restarting using 'service sendmail restart'
The SMTP port has been added into the firewall and it is showing to be listening on IP 0.0.0.0:25 which I believe means it is listening on all IP's assigned to the machine, sendmail is also in listen mode and running correctly.
Finally I have changed the /etc/mail/access file to include the local IP range 192.168 and external IP range and rebuilt this into the /etc/mail/access.db file and then restarted sendmail.
Googling the error all the sites I have found talk about making sure the 'DAEMON_OPTIONS(`Port=smtp,Addr=x.x.x.x, Name=MTA')dnl' line is uncommented and not much else in terms of what else might be incorrect.
I am starting to run out of ideas on things to change or check, telnet works correctly on other ports on the same server, ie httpd for apache on port 80. I have also rebooted the server to make sure that it wasn't something odd happening.
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.
View 2 Replies View Relatedi installed smeegol out of curiosity. and i am planning on keeping it installed as a alternative desktop. so "get rid of smeegol" is not an acceptable answer to my question. my question is also not so much about how can i turn this behaviour off but i wanna understand whats going on. here it is:when i log out of kde and start smeegol i am in offline mode per default. now thats unconfortable but i can live with it. what is however very weired and this is what the question is all about: when i leave smeegol with
init 3
init 5
and i start kde again my network manager doesnt start properly. i tried switching to traditional and switching back. still not working i tried killing the processes and restarting them still not working. i tried restarting my hole pc (i know stupid but it was a desperate move) still not working i tried a dozen other things that are even more desperate the only thing that got my network working again was starting smeegol again and switching to online mode
then ctrl + alt + backspace
and back into kde
suddenly i am online again
this is confusing how can smeegol my network manager up that hard that even a restart wont get it connected.
It is not possible to download pictures from a USB connected camera in PTP mode (SuSE 11.2), though digikam detects the camera correctly upon turning it on. I tried this with digikam, picasa, and gtkam and various cameras (Nikon D200 , Traveller, ...). The PTP download mode worked flawlessly in previous releases (11.0). I know also from other people having the same problem. However, if the camera permits to switch the USB connection to Mass storage mode, then download of images is possible. This, however, cannot serve as a general solution to the problem, because there are cameras on the market, that only have PTP mode (e.g. Nikon D300). Furthermore controlling a camera via gtkam requires PTP mode.
View 5 Replies View RelatedUsing a fresh Ubuntu server install, i setup UFW :
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When connecting from external box to this server on port 25, the connection is properly blocked by UFW but i can't find any UFW log (/var/log/kern.log, /var/log/messages, /var/log/ufw.log ...). I'm using default rsyslog.
- I've recently been donated a second emac by a friend that needs a new hdd. I want to add as much speed as possible, but don't know much about hdd transfer speeds
1)sub 100 SSD vs 7200 16mb 3.5'' platter drive ? I can't seem to find much information here. As far as I can tell, the standard hard drive would be faster unless I'm prepared to spend a couple of hundred on a top of the range SSD - is this correct?
2) will a sata/ide converter slow the transfer rates? is it worth spending the extra 50% to get an ide drive with the same specs as a SATA drive, or just use the converter?
3) Thoughts on connecting the drive via firewire - how much slower would this be than connecting the drive via the ide port on the motherboard? I am only concidering this as I don't use the firewire ports for anything else, and getting to the hard drive is a total pain, not to mention the inherrant risk of electric shock on these machines.
whose only way of connecting is trought a serial cable like the one used for a monitor but on the reversed, (sorry i dont know the correct term), ive tried using hptalx and kermit to no avail if someone could poinme in the rigth direction wolud be much apraciated, (i'll be having, some exams soon, so im in a bit of trouble), distribution slackware 12.2 , kernel 2.6.27.31 (i think).
View 2 Replies View RelatedI am trying to connect to a cisco console port using the usb to serial converter. I am using minicom and I changed me setting to reflect the USB converter cable, but it isn't working. I have set my baud rate to 9600, 8 data bits and no parity. Minicom acts as if it is connected (it doesn't give any errors), but there is nothing on the screen and nothing happens when I type. Also, I use the tail command and it sees the usb connector connected when I unplug it and plug it back in.
View 10 Replies View RelatedI've set up an FTP server with vsFTPd, and I can connect when on the same machine that the server is running. However, when attempting to connect from another machine on the internet, or even on the same LAN, the connection always fails. Port forwarding on the router is enabled.
When attempting to connect over the internet via FileZilla, this is displayed:
Code:
I have a little hardware project and I would like to use the parallel port. I basically want to display status code on top of other custom peripheral on an headless server. I only use output as the display (7 segment) is not part of the device itself. The problem is, the parallel port only have 8 standard I/O pins. I have read somewhere that there is a way to change the mode of the port to enable more data pins using a specification not backward compatible with the "classic" mode (so not enabled by default). I didn't find any other information about this. As I would like to have all 17 non-ground pin to avoid using more circuitry than necessary, how to turn this mode on?
View 3 Replies View RelatedI began by first installing Unbuntu Server (this was yesterday evening). After configuring and reconfiguring and reinstallation, I finally got it installed the way I wanted, so I thought! Today, I decided to give Debian a try. Read many posts concerning its stability, etc. D/L and installed. No problem, First I was met with permission denied error when trying to perform a simple 'cp' command. Jumped back to the forum and searched found a solution type 'su and enter password that worked perfectly I type some things in the smb.conf file (according to other instructions) then return to my XP machine to try connecting again. I know this isn't exactly 'rocket scientist' stuff, but WTH is going on? When the login screen appears in XP, I provide the proper credentials and still can't connect!! Also, how can I grant myself permissions other than using 'su -'?
Trying to build a simple file server for home use. Nothing fancy, but honestly, I've installed Novell servers much simpler than this.
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
View 3 Replies View RelatedI am having trouble connecting to VNC server from any machine in my house. The server is running fedora v14.
Previously I was able to connect when i had dsl, but i have since switched to cable and am having a problem
I checked the vnc error log and saw the below error. Note these are excerpts from the file
I have checked
1. VNC server is up and running
2. My username is in the vnc file
3. the port i am trying to connect to is open.
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The system always boot up in Graphic Mode. After installation of Web Server, I want to disable Graphic Mode and change it to boot to Text Mode to save memory. Is there a way to disable graphic mode?
View 1 Replies View RelatedIf 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?
View 4 Replies View RelatedI use PuTTY to connect to an Ubuntu Server (VPS). I would like to use Tab-Completion when I'm working with the command line on Ubuntu Server... How can I configure it?
View 1 Replies View RelatedI am fresh out the box to linux I am using mysql for the 1st time also, my question is what is the correct command to run on a mysql command line to connect to remote server.
View 5 Replies View RelatedI have a client.conf in /etc/cups that points to a CUPS server. I don't have u/p access to this server. I also want to print to a local printer (USB), but I can't set it up - ALL attempts bring me back to the CUPS server password prompt. Is there some line I can add to the client.conf to allow me to use a local printer?
View 4 Replies View RelatedI start x0vncserver like that:
Code:
x0vncserver --PasswordFile=~/.vnc/passwd
But clients that are connected to me cannot see the cursor on my desktop. I have tried to play with options in clients (Vinagre and TigerVNC viewer) and server with no luck.
P.S. I cannot use standart Vino server because of its poor performance with Gnome3. P.P.S. My system is Fedora 15
i tried my best andwrite all the commands given below. but port 27000 is not in listening state.Note: I spoofed MAC address (change MAC address)on this MAchine.here is my iptables file.
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
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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 *:####
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