users February 2008

users@lists.fedoraproject.org

470 participants
682 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

21 42

Kernel 115 Doesn't Like iwl4965
by Christopher A. Williams 18 Mar '08

18 Mar '08

Since upgrading to kernel 2.6.23.14-115.fc8, my Intel iwl4965 wireless card refuses to connect. It seems to think my hardware kill switch is enabled, which is not true. The hardware radio switch is most certainly on. Output from dmesg is at the end of this message. If I roll back to kernel 2.6.23.14-107.fc8 (the previous one), everything works as it should. Laptop is an HP/Compaq 8510w with 4GB RAM and running F8 (64-bit). Has anyone else run into this? Cheers, Chris ====================================== Here's the relevant output from dmesg: ACPI: PCI Interrupt 0000:10:00.0[A] -> GSI 17 (level, low) -> IRQ 17 iwl4965: Radio disabled by HW RF Kill switch ACPI: PCI interrupt for device 0000:10:00.0 disabled ACPI: PCI Interrupt 0000:10:00.0[A] -> GSI 17 (level, low) -> IRQ 17 iwl4965: Radio disabled by HW RF Kill switch ACPI: PCI interrupt for device 0000:10:00.0 disabled irq 17: nobody cared (try booting with the "irqpoll" option) Call Trace: <IRQ> [<ffffffff8106aa87>] __report_bad_irq+0x30/0x72 [<ffffffff8106acd8>] note_interrupt+0x20f/0x253 [<ffffffff8106b5c4>] handle_fasteoi_irq+0xa9/0xd1 [<ffffffff8100e0fc>] do_IRQ+0xf1/0x161 [<ffffffff8100c0e1>] ret_from_intr+0x0/0xa <EOI> [<ffffffff8125b7f9>] thread_return+0x5c/0xd8 [<ffffffff8101bdf7>] lapic_next_event+0x0/0xa [<ffffffff8105064c>] tick_nohz_restart_sched_tick+0x12b/0x12f [<ffffffff811d5a6a>] cpuidle_idle_call+0x0/0xa6 [<ffffffff8100aeb1>] cpu_idle+0xba/0xbc [<ffffffff81431baa>] start_kernel+0x2cf/0x2db [<ffffffff81431140>] _sinittext+0x140/0x144 handlers: [<ffffffff811a69e9>] (yenta_interrupt+0x0/0xb9) [<ffffffff811abe2f>] (usb_hcd_irq+0x0/0x52) [<ffffffff88b13de3>] (azx_interrupt+0x0/0xc3 [snd_hda_intel]) Disabling IRQ #17 -- ==================================================== In theory there is no difference between theory and practice. In practice there is. --Yogi Berra

4 5

Re: Cups keeps dropping Printer on Bluetooth printing.]
by Jim 16 Mar '08

16 Mar '08

I got the cups update this morning and as soon as you do a 'print' it disconnects the print job, anybody know what's going on ??

3 7

What's Happened at fcp.surfsite.org
by Robert McBroom 14 Mar '08

14 Mar '08

What has happened to the Fedora Community Portal at fcp.surfsite.org? There haven't seemed to be updates since the 21st of January. It was very nice to keep track of the lists in a manner that wasn't obvious to IT. Robert McBroom

2 2

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

5 5

xcb_io.c:285: _XAllocID: Assertion `!(dpy->flags & (1L << 3))' failed.
by Jack Howarth 08 Mar '08

08 Mar '08

On Fedora 8, the new X11 is breaking programs like nmrDraw from NMRPipe. The program runs fine under Fedora 7 but fails under Fedora 8 with the error... nmrdraw: xcb_io.c:285: _XAllocID: Assertion `!(dpy->flags & (1L << 3))' failed. Abort This problem also has been reported for the latest OpenSuse. I found the following thread which sounds like the problem... https://lists.linux-foundation.org/pipermail/lsb-discuss/2007-August/004171… Unfortunately, it seems that we may need to rebuild X11 to disable some of these new tests. Jack

2 1

skype mate of Fedora 8
by potat0 08 Mar '08

08 Mar '08

I get the following error when trying to run SkypeMate: SkypeMate: error while loading shared libraries: libdbus-1.so.0: cannot open shared object file: No such file or directory Has anyone installed SkypeMate on a Fedora 8 system? -- This is an email sent via The Fedora Community Portal https://fcp.surfsite.org https://fcp.surfsite.org/modules/newbb/viewtopic.php?post_id=227231&topic_i… If you think, this is spam, please report this to webmaster(a)fcp.surfsite.org and/or blame kvandergriff(a)gmail.com.

3 5

Burning CDs
by Phil Bass 07 Mar '08

07 Mar '08

First, apologies if this has been asked before. I did look at the fedora-list archives, but they're arranged by date and I don't know which month(s) to look at. (Is there a search facility somewhere?) I'm using Fedora 7 with all updates applied (except for a very recent Perl update that the update program couldn't find). I have been using xcdroast to save photos onto CDs. I always write multi-session CDs so that I can keep adding photos until the disk is nearly full. Some time over the past 5 months xcdroast seems to have stopped working. After some Googling I found that a kernel update was (probably) responsible and that it works when run as root. That would be an acceptable temporary solution, but for me it doesn't work. xcdroast starts up but never sees a CD in the CD-writer. Asking xcdroast to scan for devices causes it to hang. This is true for both ordinary users and root. After further investigation I found an alternative CD burning program called graveman and tried it. It hangs on startup for both ordinary users and root. Finally I tried to use the CD burning facility built in to Nautilus. The trouble now is that I can't find out whether Nautilus will write a new session to a multi-session CD. There's no option to control that AFAICS. So I haven't clicked the write-to-disc button to see if it works. If necessary I could learn how to use cdrecord (or is it wodim now?), but that's far more complicated than I need and I'm fast losing the will to live. ;-) Any suggestions? -- Phil Bass (phil(a)stoneymanor.demon.co.uk)

5 9

Cups doesn't end print jobs.
by John Thompson 06 Mar '08

06 Mar '08

I'm running Fedora8 x86-64 with cups-1.3.6-2fc8 and print to an Epson C88 printer attached to an EpsonNet print server. Other machines on my home network (Vista, slackware, FreeBSD) can print just fine with this setup, but for some reason on the Fedora8 machine print jobs are never removed from the queue after the print job completes. The job just sits there as "active" (even though the entire document has printed), and blocks subsequent print jobs until I manually "lprm" the job. Then the next job prints, and again sits there until I lprm that job, and so on. Cups is configured identically on my slackware machine but on that machine the jobs are removed properly. What should I be looking for to fix this? -- John (john(a)os2.dhs.org)

3 9

quicker updates - use presto
by Valent Turkovic 06 Mar '08

06 Mar '08

Hi, how many of you use presto plugin for yum that does deltarpms downloads and now whole rpms while updating? How do you find it? I find it excellent! I have a fast internet connection and I still find it really helpful - I can't imagine how is it to update on a slow internet connections without presto. If you look at the link: http://fedoraproject.org/wiki/Releases/FeaturePresto you can see that it will be on by default on Fedora 9 - nice :) Valent. -- http://kernelreloaded.blog385.com/ linux, blog, anime, spirituality, windsurf, wireless registered as user #367004 with the Linux Counter, http://counter.li.org. ICQ: 2125241, Skype: valent.turkovic

4 3

← Newer
1
2
3
4
5
6
7
...
69
Older →

Jump to page: