users September 2007

users@lists.fedoraproject.org

491 participants
720 discussions

ssh and port 22 problem, cont.
by Gerhard Magnus 25 Mar '08

25 Mar '08

Greetings! I've made some progress on troubleshooting this "ssh & port 22 problem". Here was my original post: When I try to connect from a remote machine to my one at home using ssh I get the error message "ssh: connect to host 64.146.133.1 port 22: Connection refused" -- but using ssh in the outgoing direction (i.e. from home to the remote location) works fine. Here's what's happened since: I have two machines (PuteA and PuteB) sharing an ActionTec DSL modem. The IP I was using was that of my "Gateway" ISP (64.146.133.1) -- an error. But when I used the correct, static IP address of the ActionTec (64.146.133.52) I got this message: ssh: connect to host 64.146.133.52 port22: Connection refused I thought I had port forwarding (for port 22) set correctly on the modem. For troubleshooting, my ISP advised me to run "tcpdump -n host 192.168.0.2" on PuteA, where 192.168.0.2 is the "internal" IP of PuteA. Then I logged on to the remote location from PuteB and tried to ssh from there to PuteA using the static IP address. The ssh from the remote location timed out with the same "port 22: connection refused" message. The tcpdump on Pute A gave this message: > tcpdump: listening on eth0 > 17:27:33.662753 arp who-has 192.168.0.2 tell 192.168.0.1 where 182.168.0.1 is the "internal" IP of the modem. (Sorry if I have this terminology wrong.) My ISP says the problem is the firewall on PuteA and that he doesn't do linux firewalls. Here are my replies to the people who responded to my first post: (1) "Do you have the firewall configured to deny incoming packets to port 22?" How do I check this? (2) "You need to check that sshd is running on your system." Yes. I comes up with each boot. Also "service sshd status" gives "sshd (pid 787) is running". (3) "sshd uses /etc/hosts.allow and /etc/hosts.deny. Check that they are configured to allow your remote machine in." Both files have only commented lines. (4) "Also, if your /etc/ssh/sshd_config file has VerifyReverseMapping turned on, you will get kicked out if your remote address does not work with a reverse dns lookup." There's a "VerifyReverseMapping no" line in the file but it's been commented out. (5) "Just to be sure: when you are at home machine, try 'ssh localhost'. If this works, you probably need to check your firewall." It seems to work -- I ssh to the machine itself. (6) "This is common on every system I have ever loaded with FC2. Your iptables are blocking the connection. You can do one of the following: iptables -A INPUT -m tcp -p tcp --dport 22 - j ACCEPT" I tried this. The ssh to PuteA from the remote location still times out. (7) "Oh yes I also took out the REDHAT firewall entrie as I dont have a clue as to how to work with it." I've fiddled endlessly with this "system tool" at each of the three levels of security as well as using the "customize" option to set eth0 as a trusted device and to allow incoming ssh. It doesn't show the settings that actually exist. (8) "If your fedora box is connected directly to a DSL modem, you should be able to find your IP address by running ifconfig from the command line and looking for 'inet addr:' (probably under 'eth0')." eth0 Link encap:Ethernet HWaddr 00:40:05:81:60:8E inet addr:192.168.0.4 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2184 errors:0 dropped:0 overruns:0 frame:0 TX packets:2005 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:1122075 (1.0 Mb) TX bytes:190214 (185.7 Kb) Interrupt:5 Base address:0x3000 Could this be the problem -- the "inet addr" of 192.168.0.4? As far as I can tell, the modem is 192.168.0.1, PuteA is 192.168.0.2, and PuteB is 192.168.0.3. I haven't set anything as 192.168.0.4. (9) "nmap 64.146.133.52" (The 1598 ports scanned but not shown below are in state: closed) Port State Service 23/tcp open telnet 53/tcp open domain 80/tcp open http Shouldn't ssh be here? And what's telnet doing open? The books have me scared to death of this... hackers, crackers, script kiddies, etc. Thanks for the help! Jerry Magnus

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Yum repair
by Timothy Murphy 08 Mar '08

08 Mar '08

I upgraded FC-6 to F-7 on an Athlon64 machine, and the process hung several (3 I think) times during installation. Each time I re-started the machine, the number of packages was greatly reduced: 950 ... 400 ... 50. The system works fine, but it is pretty clear all the packages were not properly installed. Eg when I ran "yum update" after the installation only 30 or so packages were downloaded, while on other systems the number was 300-400. Is there any way of checking that everything has been downloaded? Or is there even a command like "yum --force install" to force a re-installation of a particular package? -- Timothy Murphy e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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keyspan usb serial and fc6 help
by matt pieklik 28 Feb '08

28 Feb '08

I had my keyspan USB serial adapter 19HS working with FC5, but now that I have upgraded to FC6 it is no longer fully functional. It is detected, and I get one way communication through it when I use minicom. I am able to send but not receive, I determined this by connecting two machine via serial. Is this a problem with the USB serial adapter, or do I not have the associated serial port configured correctly? Here is the output from the startup: usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb usbcore: registered new interface driver libusual usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver usb usb1: configuration #1 chosen from 1 choice usb usb2: configuration #1 chosen from 1 choice usb usb3: configuration #1 chosen from 1 choice usb usb4: configuration #1 chosen from 1 choice usb 2-2: new full speed USB device using uhci_hcd and address 3 usb 2-2: configuration #1 chosen from 2 choices SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts usbcore: registered new interface driver usbserial drivers/usb/serial/usb-serial.c: USB Serial support registered for generic usbcore: registered new interface driver usbserial_generic drivers/usb/serial/usb-serial.c: USB Serial Driver core drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan - (without firmware) drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan 1 port adapter drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan 2 port adapter drivers/usb/serial/usb-serial.c: USB Serial support registered for Keyspan 4 port adapter usb 2-2: Keyspan 1 port adapter converter now attached to ttyUSB0 usbcore: registered new interface driver keyspan drivers/usb/serial/keyspan.c: v1.1.4:Keyspan USB to Serial Converter Driver Thanks for any help. Matt

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/tmp running out of space
by Anne Wilson 19 Feb '08

19 Feb '08

/tmp is filling up rapidly. I'm guessing that it would be safe enough to delete everything dated previous to the last bootup. Am I right? Anne

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tuxtype2 doesn't launch
by Ed Landaveri 14 Feb '08

14 Feb '08

I have installed tuxtype2 for my daughters to learn typing but every time I launch it the screen goes black as though it will work but not, it returns to the desktop. If I try to launch it from the terminal It gives me a message: Load settings: Settings file doesn't exists! Settings not loaded! Load settings: Settings file doesn't exists! Settings not loaded! Please can anyone tell me how to fix this? Thanks a lot Linux user number 433512 Free as in Freedom: http://counter.li.org --------------------------------- Sponsored Link Mortgage rates near historic lows - Refi $200k loan for only $660/ month - Click now for info

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Rsync
by Paul Ward 11 Feb '08

11 Feb '08

Hi Peeps, Does anyone know if it is possible to use rsync to back up an ftp site that uses a password. I am aware of rsync://[USER@]HOST[:PORT]/SRC [DEST] but how do I handle the password? If this is not possible does it mean I have to use sftp? Thanks in advance

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Can scp be used to update a directory?
by Anne Wilson 09 Feb '08

09 Feb '08

The scp man page is not very verbose ;-) I want to copy a directory, recursively, over the lan, but only those files that are new or updated. MS-DOS could do this back in ...Ummm.... so I can't believe it can't be done in scp, but I can't see how to do it. Anne

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New FC6 Installation DVD released
by Lyvim Xaphir 08 Feb '08

08 Feb '08

Latest FC6 Respin installation DVD was released on 2007-01-19. Lots of known FC6 bugs fixed and it uses the latest updated packages as of Jan 11th. If you have had install problems with Core 6 before, you are encouraged to try installation with this new FC6 Respin DVD. http://fedoraunity.org/news-archives/core-6-re-spin-20070111/ "The Fedora Unity Project is proud to announce the release of new ISO Re-Spins of Fedora Core 6. These Re-Spin ISOs are based on Fedora Core 6 and all updates released as of January 11th, 2007. The ISO images are available for i386 and x86_64 architectures via BitTorrent starting Thursday, January 18th, 2007. PPC images will follow within the next 5 days, but will have had only limited testing. This release was delayed while waiting for fixes to known issues with Fedora Core 6[1] as well as the creation of a new tool for composing Re-Spins. Previous releases were built with a homebrew script. This release was built with the new tool called Pungi[2], developed by Jesse Keating, a leading community member and Fedora Release Engineer, with community input. This tool will be used in future official Fedora releases and for Fedora Unity Re-Spins. We have joined in this effort to bring a full featured tool to the Fedora community, enabling anyone to build Re-Spins and Live-Spins now and in the future." LX -- °°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°° Off Topic or Political Discussions: http://mandrakeot.mdw1982.com/ http://www.mdw1982.com/mailman/listinfo/mandrakeot "Character is what you do when nobody's looking." - J.C. Watts °°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

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Re: fedora 7 wpa_supplicant/ath0 booting problems
by Andrea 06 Feb '08

06 Feb '08

> I have an atheros cardbus card made by ubiquiti. Every once in a > while wpa_supplicant gets in a loop where it negotiates the key, I > very briefly see "completed" with the wpa-psk, CCMP, etc displayed in > wpa_gui. Before I can blink the wpa_gui says DISCONNECTED and all the > vitals are cleared. It then repeats the above forever. The fix is > usually to do a "service wpa_supplicant restart". Sometimes I need to > take down the ath0 interface and bring it up too. It feels like a > timing problem where wpa_supplicant just isn't waiting long enough for > something. > > BTW. I just spent an hour trying to get the network working with > wpa_supplicant started before the network code. If I put an "exit 0" > at the start of ifup-wireless then the dhclient never got started, > even though wpa_gui shows the association exists. Ipv6 is also up, so > the network is usable for that. I have no idea why dhclient didn't get > started. The only thing I can guess is timing also. I've returned to > starting wpa_supplicant from the bottom of ifup-wireless and things > are back to normal. Forgot to mention 2 things: 1) "exit 0" is not good since the file is included in another script (I think), so you end up skipping the rest of its parent (where dhcp is started). You should add something like if WPA .... fi around all the settings via "iwconfig" 2) I had to disable ipv6 completely, otherwise my interfaces (both wireless and cable) were not able to go up and down. They were up once and then if-down hanged. cheers

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network question
by LC 28 Jan '08

28 Jan '08

Hi, I have a samba machine which i will access to it via a public and local area network. Am i right to set the both public and LAN IP on two seperate network cards? regards

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