Network connection lost - Debian Lenny kernel 2.6.26-2-amd64
Hello, I have problems with a system under lenny amd64 5.0.5. My server serves as a apache reverse proxy. During production, i lost network connectivity, got no response from ping. Thought my server has crashed, but when i arrived face to my server, i saw the system was always up. After logging into my shell, unable to go away the network. An ifconfig gave me my configuration, eth up route gave me the good routes (with the good default one) Got Carrier detect onto my network card My hardware is a Dell PE 1950 with a Broadcom 5708 as NIC. The kernel is a 2.6.26-2-amd64 standard, no custom. After ifdown,ifup /etc/init.d/networking restart, no way to get back my connection. I got to reboot my hardware. This time i could get back my network connection. I've read my logs (messages,kern.log,syslog,mail.log, daemon.log, debug, snort, samhain, ...) No message explaining my problem ! The server get offline on 11.34 A.M. (got logs entries onto mail.log that says domain names not available with MX problem) and get back on 12.05 A.M. (hard reboot) So at 11.34 A.M. , something went wrong, but no explanation to provide. The only entry in my logs that could be interesting is in syslog are on 11.18 with A.M. "Treason Uncloack" shrinking window. But this is just the problem with syn_cookies. On my monitoring (onto centreon) no special warning, no more with cacti, just a loss connexion. If somebody as already heard about this problem, i would appreciate any information about this issue. Thanks. Benoit Lair, Network and System Administrator.
Re: Network connection lost - Debian Lenny kernel 2.6.26-2-amd64
I didn't specify it, but i've tried: ping onto an external host ping onto the gateway of this server The messages into mail.info says there's a problem with MX resolution because of the network loss. Also, when i tried to ping an IP, i got no response, so it doesn't seem there's a problem around dns system. 2012/3/6 Camaleón > > On Tue, 06 Mar 2012 16:34:27 +0100, benoit lair wrote: > > (please, no html formatted messages, thanks) > > > I have problems with a system under lenny amd64 5.0.5. > > > > My server serves as a apache reverse proxy. During production, i lost > > network connectivity, got no response from ping. Thought my server has > > crashed, but when i arrived face to my server, i saw the system was > > always up. > > After logging into my shell, unable to go away the network. > > > > An ifconfig gave me my configuration, eth up route gave me the good > > routes (with the good default one) Got Carrier detect onto my network > > card > > (...) > > As "ifconfig" and "ip route" returned the correct data, I would have run > the usual tests: > > - ping to an internal and external host to check for basic connectivity > - dig/host to discard a network resolution problem > > Also, depending on the above results, as you were sitting in fornt of the > server, reloading the network kernel module could have been something > worth to try. You mean to unload the network module via modprobe ? It's quite surprising, seen nothing on the logs. A precision, i use bnx2 firmware (non-free, the firmware is bnx2-06-4.0.5.fw exactly ) in order to use my network card The installation was made (several months ago) loading the firmware onto a usb key with this file, so not using the bnx2 deb package with dpkg. May be there are some problems known with this driver ? Greetings > > Greetings, > > -- > Camaleón > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact > listmas...@lists.debian.org > Archive: http://lists.debian.org/jj5bmk$ds9$1...@dough.gmane.org > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAHBcSYbP=R=_58ik9aqtontobxp01glitsdvq3r7jpjwwcz...@mail.gmail.com
Re: Network connection lost - Debian Lenny kernel 2.6.26-2-amd64
2012/3/7 Camaleón : > On Tue, 06 Mar 2012 23:33:00 +0100, benoit lair wrote: > >> I didn't specify it, but i've tried: >> >> ping onto an external host >> ping onto the gateway of this server > > And what was the output/results? No response in all cases. > >> The messages into mail.info says there's a problem with MX resolution >> because of the network loss. > > So you can't resolve domain names. I wasn't behind my server when it loss connection. No way to contact him from my office, so went fast to my datacenter to regain access (ok no remote control pdu on this machine and not virtualised (1 of 3 old school survivors on my network), so hard access to this hardware when problem) So when arrived in my box, face to my server, wired my kvm screen and so no way to get any network from my server. > >> Also, when i tried to ping an IP, i got no response, so it doesn't seem >> there's a problem around dns system. > > Which pings fails, remote or local (or both)? So both > > Sample of remote ping can be "ping -c 3 8.8.8.8" > Sample of local ping can be "ping -c 3 192.168.0.1" > >> 2012/3/6 Camaleón > > (...) > >>> Also, depending on the above results, as you were sitting in fornt of >>> the server, reloading the network kernel module could have been >>> something worth to try. >> >> You mean to unload the network module via modprobe ? > > Yes. > >> It's quite surprising, seen nothing on the logs. > > Nothing? Is the module loaded? "lsmod | grep bnx2" Now i looked onto my incidents tickets, already got this problem 10 months ago. But it was unsolved by my collegues. grrh, now it's too late to get response less than waiting horribly for a potential new bug ... Keeping the logs away from log rotate, will have to read and prepare cups of cofee for this week end Greetings. > >> A precision, i use bnx2 firmware (non-free, the firmware is >> bnx2-06-4.0.5.fw exactly ) in order to use my network card The >> installation was made (several months ago) loading the firmware onto a >> usb key with this file, so not using the bnx2 deb package with dpkg. >> >> May be there are some problems known with this driver ? > > Hard to tell right now. I would run more tests, there are still many > missing things to reach a conclusion (i.e., results of the local and > remote ping, what happens when you reload the module...). > > Greetings, > > -- > Camaleón > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > Archive: http://lists.debian.org/jj7hnt$ujn$2...@dough.gmane.org > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAHBcSYYKZXdLnK=mf5hkt+ere+c4p0gtakggzgeadh4bh_5...@mail.gmail.com
Re: Network connection lost - Debian Lenny kernel 2.6.26-2-amd64
Yep! An idea! I didn't take a look onto my ossec logs, perhaps will i find something. Thanks for the tip of modprobe Camaleon. I'll be back, when i got news. Greetings. 2012/3/7 benoit lair : > 2012/3/7 Camaleón : >> On Tue, 06 Mar 2012 23:33:00 +0100, benoit lair wrote: >> >>> I didn't specify it, but i've tried: >>> >>> ping onto an external host >>> ping onto the gateway of this server >> >> And what was the output/results? > No response in all cases. >> >>> The messages into mail.info says there's a problem with MX resolution >>> because of the network loss. >> >> So you can't resolve domain names. > I wasn't behind my server when it loss connection. > No way to contact him from my office, so went fast to my datacenter to > regain access (ok no remote control pdu on this machine and not > virtualised (1 of 3 old school survivors on my network), so hard > access to this hardware when problem) > So when arrived in my box, face to my server, wired my kvm screen and > so no way to get any network from my server. >> >>> Also, when i tried to ping an IP, i got no response, so it doesn't seem >>> there's a problem around dns system. >> >> Which pings fails, remote or local (or both)? > So both >> >> Sample of remote ping can be "ping -c 3 8.8.8.8" >> Sample of local ping can be "ping -c 3 192.168.0.1" >> >>> 2012/3/6 Camaleón >> >> (...) >> >>>> Also, depending on the above results, as you were sitting in fornt of >>>> the server, reloading the network kernel module could have been >>>> something worth to try. >>> >>> You mean to unload the network module via modprobe ? >> >> Yes. >> >>> It's quite surprising, seen nothing on the logs. >> >> Nothing? Is the module loaded? "lsmod | grep bnx2" > Now i looked onto my incidents tickets, already got this problem 10 months > ago. > But it was unsolved by my collegues. grrh, now it's too late to get > response less than waiting horribly for a potential new bug ... > > Keeping the logs away from log rotate, will have to read and prepare > cups of cofee for this week end > > > > Greetings. >> >>> A precision, i use bnx2 firmware (non-free, the firmware is >>> bnx2-06-4.0.5.fw exactly ) in order to use my network card The >>> installation was made (several months ago) loading the firmware onto a >>> usb key with this file, so not using the bnx2 deb package with dpkg. >>> >>> May be there are some problems known with this driver ? >> >> Hard to tell right now. I would run more tests, there are still many >> missing things to reach a conclusion (i.e., results of the local and >> remote ping, what happens when you reload the module...). >> >> Greetings, >> >> -- >> Camaleón >> >> >> -- >> To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org >> with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org >> Archive: http://lists.debian.org/jj7hnt$ujn$2...@dough.gmane.org >> -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cahbcsyz8uh9+dwjvpd6lyouubaqq7w3pd5ct5tvjdw+jcqn...@mail.gmail.com
Re: anyone uses ReiserFS today
Hi We are still using Reiserfs for its space optimisation. Very optimised for a lot of little files and its shrink feature is better than with xfs The file system is more resilient with power outage per exemple than others So with linux 6.6 any way possible to load the module ? Le lun. 12 août 2024, 18:43, a écrit : > On 8/12/24 04:09, Wesley wrote: > > Most recent years we keep using the ext4 filesystem. > > But years ago before ext4 we used the ReiserFS filesystem. > > In my memory ReiserFS was a good choice for our application (many small > files). > > Do you anybody still use ReiserFS today? How about it compares to ext4? > > IIRC it got its efficiency boost by storing bits of one file in the > allocated-but-not-full inode of another. While true, that's more space > efficient, good luck untangling the mess that filesystem damage makes. > > -- > I firmly believed we should not march into Baghdad ...To occupy Iraq > would instantly shatter our coalition, turning the whole Arab world > against us and make ... a latter-day Arab hero assigning young soldiers > to a fruitless hunt for a securely entrenched dictator[.] -- GHWB > >
