Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Unknown Newsgroups: comp.os.linux.networking Subject: Re: Multiple connections to NNTPserver? Date: Sun, 8 Jun 2014 08:45:28 +0000 (UTC) Organization: A noiseless patient Spider Lines: 51 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Sun, 8 Jun 2014 08:45:28 +0000 (UTC) Injection-Info: mx05.eternal-september.org; posting-host="ecb93a26278b557cfbc028f578891b9b"; logging-data="25348"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/CmlU4rpY0i+XLjoljudiXm15FsO3BUrA=" User-Agent: Pan/0.133 (House of Butterflies) Cancel-Lock: sha1:5puqF2mprCyRzJsMrHohVqhCBIg= Xref: csiph.com comp.os.linux.networking:2970 On Sat, 07 Jun 2014 16:21:22 +0000, William Unruh wrote: > On 2014-06-07, Avoid9Pdf@gmail.com wrote: >> In the old-days Newsgroup-names didn't contain minus-signs. Now they >> do. >> So I hacked the good-old NTTP 'handler', [based on rfc..]. But now, >> sometimes it hangs. Often after the first fetch. >> >> When I asked: list article-header-numbers in comp.sys.raspberry-pi, >> containing "onta" in , it hang, if it's already done a fetch. >> >> lsof | grep >> shows the 2 lines:-- >> 22380 root 29u IPv4 391647 \ >> TCP 10.208.223.203:41160->78.46.70.116:nntp (ESTABLISHED) >> 22380 root 30u IPv4 391655 \ >> TCP 10.208.223.203:41162->78.46.70.116:nntp (ESTABLISHED) >> >> Does this mean that I had 2 connections to 78.46.70.116:nntp, when it >> hung ? >> >> Shouldn't the 1st connection have closed, since I only 'called' the >> second fetch, after I saw that the 1st had arrived. > > It could also be that it regularly uses more than one connection to > download the material. You do not even say which reader you are using. > Because you don't know it:ETH.Oberon for linux, which I've modified to accept > >> Perhaps the NNTP-server [eternal september] doesn't allow D.O.S.-like >> multiple connections? > > It allows up to 4 concurrent connections, according to their faq. >> >>==TIA. I've been thinking how to show the marvels of *nix piping to some non-*nix users, via this exercise: Why is this LEO [aka Linux-based ETH Oberon] hanging? Show me the pid/s of all LEO = pgrep beron Show me the latest one started = pgrep beron | tail -1 Show me which files it has open = lsof | grep `pgrep beron |tail -1` !!Wow!! There a big problem. Right now, by test/pasteing that cmd, it shows: .. IPv4 391647 TCP 10.208.223.203:41160->78.46.70.116:nntp (ESTABLISHED) But I've been off-line for 10 hours.