- Roundtable - muug.ca

MUUG Meeting, November 13, 7:30PM -- Mini-HOWTO's on NTP and XINETD
by gedetil＠cs.umanitoba.ca 06 Nov '01

06 Nov '01

[Posted to man.unix.general and other news groups] ------ Forwarded Article <9s9813$b57$1(a)canopus.cc.umanitoba.ca> ------ From gedetil(a)cs.umanitoba.ca (Gilbert E. Detillieux) The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting on Tuesday, November 13. The meeting topic for this month is as follows: Mini-HOWTO's on NTP and XINETD This month, MUUG members Kevin McGregor and Gilbert Detillieux will each be covering a short topic, in a mini-HOWTO format. Kevin McGregor will be talking about NTP, the network time protocol, and the UNIX daemon which provides support for this protocol. Gilbert Detillieux will be talking about XINETD, a powerful replacement for the UNIX INETD daemon, used for launching numerous TCP and UDP based network services. The group holds its general meetings at 7:30 PM on the second Tuesday of every month from September to June. (There are no meetings in July and August.) Meetings are open to the general public; you don't have to be a MUUG member to attend. ********************************************************************** New Location: Once again this month, and from now on, the meeting will be at the IBM offices, at 400 Ellice Ave. (between Edmonton and Kennedy). When you arrive, you will have to sign in at the reception desk, and then wait for someone to take you (in groups) to the meeting room. Limited parking is available for free on the street, or in a lot across Ellice from IBM, for $1.00 for the evening. Indoor parking is also available nearby, at Portage Place, for $2.00 for the evening. ********************************************************************** For more information about MUUG, and its monthly meetings, check out their Web server: http://www.muug.mb.ca/ Also note that MUUG maintains two mailing lists, called "muug-announce" and "roundtable". If you're not already on these lists, I encourage you to subscribe now: http://www.muug.mb.ca/mailman/listinfo/ The "muug-announce" list is used for monthly meeting announcements (such as this one) as well as other important announcements of interest to MUUG members. The "rountable" list is meant to be a forum for follow-ups to topics discussed at the meetings, or for round-table-style discussion on other topics that come up between meetings. Of course, for this to be effective, we need to reach a certain critical mass. So, please subscribe, and stay involved! -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ P.O. Box 130, St-Boniface Phone: (204)474-8161 Winnipeg, MB, CANADA R2H 3B4 Fax: (204)474-7609 ------ End of Forwarded Article

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RE: [RndTbl] TD network failure
by Shewfelt, Doug 30 Oct '01

30 Oct '01

Gilber Detillieux wrote: > According to author: > > Does anyone have any specifics as to why the > > Toronto Dominion Bank had that major failure > > this Saturday, October 27 ? All I hear in the > > media is that it was some kind of > > 'hardware' failure. Nothing specific said. > > I'm in the same boat. I listened to various news reports on > Saturday night, but they just referred vaguely to a "computer > glitch" or a "computer bug", without getting into any details. There's a brief article on it in The Globe and Mail today (http:.//www.globeandmail.com). The full URL that I got when I found the article is the elegant and easily remembered http://rtnews.globetechnology.com/servlet/RTGAMArticleHTMLTemplate/C/2001103 0/wxtdbank?tf=tgam/realtime/fullstory_Tech.html&cf=globetechnology/tech-conf ig-neutral&slug=wxtdbank&date=20011030&archive=RTGAM&site=Technology. It doesn't go into a lot of detail. (I think that banks are traditionally quiet about data processing problems.) Here are a couple of paragraphs that give a little information: The crash was caused by the failure of a single "motherboard" in one of the bank's central computers at about 11 a.m. Saturday. This "gradually started to shut down the system" to "protect the integrity" of the data already there, Mr. Livingston said. "It was a purely random event," he said, adding that hardware failures are rare. "This has never happened before, and it will likely never happen again." Although the bank's credit card system "stayed on the air pretty much all day," and its debit card system also continued to function "intermittently," Mr. Livingston said, everything else went down. This included its telephone and Internet banking operations, in-branch computer systems and approximately 2,000 automated banking machines. Customers also were unable to gain access to their money through other banks' ABMs. [...] As TD sought to identify and fix the problem, "a few million transactions" were rejected by the bank's systems, which, on a busy Saturday, process up to 500 transactions a second, he said. > > I'd really like to know what happened to > > crash their whole system. I thought the banks > > had 'bullet-proof' networks what with all those > > billions of dollars they have to spend. > > [...] I would > suspect it was not a network problem, per se, but rather a failure of their > account database, for it to affect all modes of account access like that. Gilbert's theory sounds reasonable, especially since the credit card system was working for most of the time. I assume that the credit card system has an independent account database. - Doug

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TD network failure
by author 29 Oct '01

29 Oct '01

Does anyone have any specifics as to why the Toronto Dominion Bank had that major failure this Saturday, October 27 ? All I hear in the media is that it was some kind of 'hardware' failure. Nothing specific said. I'd really like to know what happened to crash their whole system. I thought the banks had 'bullet-proof' networks what with all those billions of dollars they have to spend.

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Red Hat 7.2 now available!
by gedetil＠cs.umanitoba.ca 22 Oct '01

22 Oct '01

Hey folks! Red Hat 7.2 is available as of this morning! You can pick it up from your favourite local mirror... ftp://ftp.muug.mb.ca/mirror/redhat/redhat/linux/7.2/en/ Have fun! -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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Tape Backup Software, comments.
by Brock Wolfe 19 Oct '01

19 Oct '01

I am looking for Linux tape back-up software for a small network of mixed OS PC's. I have looked at Amanada, Arkeia, and Tolis BRU. I am especially looking for support for HP "One Button Disaster Recovery" (OBDR), and centralized network backup. I have followed the Amanda mailing list and have feel for it's use. Are there any pros/cons to Arkeia and BRU ?

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Linux InstallFest, October 20-21, 1-6pm
by gedetil＠cs.umanitoba.ca 16 Oct '01

16 Oct '01

[Posted to man.unix.general and other news groups.] ------ Forwarded Article <9qibs0$3re$3(a)canopus.cc.umanitoba.ca> ------ From gedetil(a)cs.umanitoba.ca (Gilbert E. Detillieux) October 20-21, 2001: Linux InstallFest This is not a regular monthly MUUG meeting, nor is it a MUUG event, although many MUUG members have volunteered to help. We will be joining the Prairie Linux User Group (PLUG), and the Winnipeg PC User Group's Linux Forum, for the 2001 Linux InstallFest, on Saturday, October 20, and Sunday, October 21, from 1 to 6 pm on each day. The event is being held at the WPCUG club house, 337-C Pembina Highway. For more information, please visit PLUG's InstallFest web site... http://www.openfarm.org/if/ or call 453-DATA (3282) or 633-3259. For more information about MUUG, and its monthly meetings, check out their Web server: http://www.muug.mb.ca/ -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ P.O. Box 130, St-Boniface Phone: (204)474-8161 Winnipeg, MB, CANADA R2H 3B4 Fax: (204)474-7609 ------ End of Forwarded Article

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Red Hat 7.2 official launch
by gedetil＠cs.umanitoba.ca 12 Oct '01

12 Oct '01

Here's the official word from Red Hat... The launch date is set to be October 22nd, at 8:00am EST (-5/GMT). Hopefully, we'll be completely in synch with their site by that morning. (That shouldn't be too much of a problem, though, as they've been much more organised than usual, and have given mirror sites much more lead time.) -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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Red Hat 7.2 review from ZDnet
by gedetil 11 Oct '01

11 Oct '01

Further to the October roundtable discussion about the imminent release of Red Hat 7.2, here's the ZDnet review I mentioned, which may be of interest to you... http://www.zdnet.com/products/stories/reviews/0,4161,2816836,00.html It mentions some of the key new features in this release, such as GRUB, ext3, and a new version of Gnome. (BTW, still no word on the actual release date, but it's still sounding likely to be sometime between the 15th and the 22nd.) Also, I've updated the meeting write-up on the web site to include links to the PDF file for Terry Baydock's slide presentations and handouts... http://www.muug.mb.ca/meetings/01-02.html#oct Enjoy! -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ P.O. Box 130, St-Boniface Phone: (204)474-8161 Winnipeg, MB, CANADA R2H 3B4 Fax: (204)474-7609

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Linux Journal subscriptions
by Bill Reid 14 Sep '01

14 Sep '01

Just a warning. I received my renewal notice at the price of 1 yr $32, 2 yr $64. A month later another notice had the price at 1 yr $22, 2 yr $39. I do not know how low the price would go if I waited longer. ttyl, Bill ____________________________________________________________ Bill Reid Page 993 Dorchester Ave. Network Consultant, Retired 935-1432 Winnipeg, MB R3M 0P9 University of Manitoba (204) 452-6590

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Logging and rejecting with iptables
by Sean A. Walberg 11 Apr '01

11 Apr '01

Further to the question last night on how to both log and drop a packet, it is done with an extra chain. I created a LOGGING chain with a default policy of ACCEPT. The first rule in INPUT was then to jump to LOGGING. Here is what I have (my apologies for any wrapping) [root@poochie /root]# iptables -N LOGGING [root@poochie /root]# iptables -A LOGGING -p tcp --dport printer -j LOG [root@poochie /root]# iptables -I INPUT -j LOGGING [root@poochie /root]# iptables -L INPUT -v Chain INPUT (policy ACCEPT 1730617 packets, 454636701 bytes) pkts bytes target prot opt in out source destination 42 2215 LOGGING all -- any any anywhere anywhere 5 300 REJECT tcp -- ppp0 any anywhere anywhere tcp dpt:printer reject-with icmp-port-unreachable ... Telnetted to the printer port from another site ... [root@poochie /root]# iptables -L INPUT -v Chain INPUT (policy ACCEPT 1730622 packets, 454636941 bytes) pkts bytes target prot opt in out source destination 48 2515 LOGGING all -- any any anywhere anywhere 6 360 REJECT tcp -- ppp0 any anywhere anywhere tcp dpt:printer reject-with icmp-port-unreachable /var/log/messages: Apr 11 09:07:20 poochie kernel: IN=ppp0 OUT= MAC= SRC=204.112.146.80 DST=209.202.29.23 LEN=60 TOS=0x00 PREC=0x00 TTL=56 ID=11222 DF PROTO=TCP SPT=1254 DPT=515 WINDOW=32120 RES=0x00 SYN URGP=0 Sean -- Sean A. Walberg <sean(a)ertw.com> http://www.ertw.com *updated!* Join the weekly brainbuzz.com Linux newsletter for news and resources! Send a blank email to: join-linuxnews(a)list.brainbuzz.com

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