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34753 discussions

10 Nov '05

Hi all, I have 2 servers, 1 is DNS master and the other slave for a domain, if I was to add a second MX record using the master servers IP for the domain thats hosted on the slave would mail be held on the masters mail queue if the slave was down? I am wanting to have mail held when the slave is down so it gets delivered immediately it comes back up instead of being held on other servers for up to 8 hours before I get it. hope that makes sense. tom

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cron error message
by Sam Drinkard 10 Nov '05

10 Nov '05

Discovered a problem this morning. Looking at the cron log, I see a bunch of entries where cron mailed 2248 bytes of output but got status 0x0045. There was no daily report in the mail either. What is the error number saying? -- Snowman

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centos 3.6 and apt repo
by Mark Quitoriano 10 Nov '05

10 Nov '05

Is there apt repository for 3.6? -- Regards, Mark Quitoriano, CCNA http://www.atamanetworks.com Fan the flame... http://www.spreadfirefox.com/?q=user/register&r=19441

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Trouble with finding a network printer...help please...:(((
by Olaf Greve 10 Nov '05

10 Nov '05

Hi all, I'm sorry to have to ask a probably straightforward question, but I'm stuck at it, and I need access to the printer for my work...:/ The situation: When first installing CentOS, I manually installed a networked printer, and that worked fine. AFAIR I installed it using the IP address, and the generic Postscript driver. The printer in question is a Xante Accelawriter 3N. The issue: After one of the latest automatic kernel updates, for some reason the printer was not found anymore. I've been trying to get it set up afterwards, and so far I've not succeeded. :((( I do not remember anymore how I did it exactly previously, but it seems the only two ways to use this printer on our (probably not completely well configured) network are via TCP/IP and Appletalk. Now, try as I might, I cannot get it to work anymore. I tried finding it over TCP/IP by its IP address, but no luck so far. Does anyone know how to go about this? If this is somehow off-topic for the list, off-list replies are also elcome of course. Thanks in advance, and cheers! Olafo

1 0

Filers, filesystems, etc.
by Henk van Lingen 10 Nov '05

10 Nov '05

On Tue, Nov 08, 2005 at 08:04:54AM -0800, Bryan J. Smith wrote: > > > NAS offers safe concurent access (generally, there might be > > some NAS devices outthere that do not). NAS device will > > manage file system internally, and export it over NFS or > > SMB protocols to the clients. > > Such NAS' are a combined host+storage aka "filer." They have > many advantages over SAN -- especially in their fail-over > and/or load-balancing capabilities. ... > Oh, it all depends on the design of the NAS. NetApp does a > pretty damn fine job with their designs (long story). > But there's many other benefits. But that is a larger > discussion. Hi Bryan, Please tell. I have to replace our old Sun Enterprise fileserver (solaris8), which does NFS and Samba (homedirectories, projects file space). It will be x86 hardware, but I'm looking for the best filesystem for the job (let's say one terabyte). It has to have quota and ACL support. I'm doing CentOS on servers these days, but I presume ext3 is not the best choice in this case. Previous postings of yours suggest XFS is the way to go. However, it seems hard to find an enterprise class linux distro with XFS incorporated? And how does a FreeBSD solution compare to linux/ext3 or linux/xfs? What are the considerations in case of a NAS filer instead of a raid-box connected to hostmachine? Regards, -- Henk van Lingen, Systems & Network Administrator (o- -+ Dept. of Computer Science, Utrecht University. /\ | phone: +31-30-2535278 v_/_ http://henk.vanlingen.net/ http://www.tuxtown.net/netiquette/

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Restart after crash
by Syv Ritch 10 Nov '05

10 Nov '05

Hi, Is it possible do have fsck to run automatically [without operator intervention], if it was not a clean shutdown. Right now, somebody has to bring a monitor & keyboard and say Y, if not it will not run and verify the drive. This is for remote headless servers. -- Thanks http://www.911networks.com

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Re: [CentOS] ATA-over-Ethernet v's iSCSI
by Dave Hornford 09 Nov '05

09 Nov '05

Nick, What are you planning on running over the shared connection? Database, eMail, File Shares? How many users? How much data? What is your I/O profile? I've worked with 'enterprise' storage most of my career either as a consumer, adviser or provider - can't comment on AoE other than to suggest you look at what are the business & technical goals, how they solve it and what is your risk profile against the business need of the system. (I'm currently working as an adviser) When you have an opportunity to chase into "enterprise support" of new disk is usually comes down to insufficient time for testing, or known problems (heat, torque, variability in sample, failure rate & edge-case incompatibility with previously certified products are normal) You have hinted with the concern over TCP offload that you may have higher-end performance needs and that this system carries a high business value and needs a lower risk solution. Remember risk is a cost. regards Dave www.hornfordassociates.com >Nick Bryant >Subject: [CentOS] ATA-over-Ethernet v's iSCSI > >Just wondering if anyone out there has any opinions or better still >experience with Coraid's AoE products in a centos environment? > >We're looking at developing a very basic active/standby 2 node cluster >which will need a shared storage component. It would be a huge bonus if >other servers could also use the storage device. Originally I was looking >at the Dell/EMC iSCSI solution as it's a cheaper solution than fibre >channel. >However, the performance issues without using a TCP offload HBA are a bit >of a concern. > >Then I found the Coraid (www.coraid.com) products based on the open >standard AoE protocol. It's got a number of benefits including: price, >less protocol overhead for the server and the ability to use any disks >where as "enterprise" approved products form the likes of Dell/Sun etc >only support 250gb sata disks at the moment. > >I guess my concern is that it's a new technology that's not been widely >adopted so far and all the issues that go along with that. > >Any options or feedback would be really helpful. > >Cheers, > >Nick > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > >

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sendmail & mail() in php
by hiep＠ee.ucr.edu 09 Nov '05

09 Nov '05

Hello everyone, I tried to configure sendmail so that I can use mail() in php. I don't host my email server, my ISP does. I just want to configure sendmail so that it uses external email server (my ISP) to send mail. When I executed mail(), i got no error report from php. I checked /var/log/maillog and it indicated that the message was accepted for delivery. However, it didn't delivery and indicated DSN: Service unavailable. Can someone help or suggest any other way to get this thing works? I'm not in the position to setup and a fully function email server for this at this time. I just want to use my ISP email server for now. thank you so much for all your help. Here is my /var/log/maillog and sendmail.mc Nov 8 14:09:02 jadenet sendmail[3275]: jA8J920D003275: from=apache, size=73, class=0, nrcpts=1, msgid=<200511081909.jA8J920D003275(a)jadenet.jadesterling.com>, relay=apache@localhost Nov 8 14:09:02 jadenet sendmail[3276]: jA8J92aP003276: from=<apache(a)jadenet.jadesterling.com>, size=361, class=0, nrcpts=1, msgid=<200511081909.jA8J920D003275(a)jadenet.jadesterling.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1] Nov 8 14:09:02 jadenet sendmail[3275]: jA8J920D003275: to=hnguyen(a)jadesterling.com, ctladdr=apache (48/48), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30073, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (jA8J92aP003276 Message accepted for delivery) Nov 8 14:09:03 jadenet sendmail[3278]: jA8J92aP003276: to=<hnguyen(a)jadesterling.com>, ctladdr=<apache(a)jadenet.jadesterling.com> (48/48), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120361, relay=mail.jadesterling.com. [216.144.3.38], dsn=5.0.0, stat=Service unavailable Nov 8 14:09:03 jadenet sendmail[3278]: jA8J92aP003276: jA8J93aP003278: DSN: Service unavailable Nov 8 14:09:03 jadenet sendmail[3278]: jA8J93aP003278: to=root, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31627, dsn=2.0.0, stat=Sent Nov 8 14:19:06 jadenet sendmail[3281]: jA8JJ51a003281: from=apache, size=73, class=0, nrcpts=1, msgid=<200511081919.jA8JJ51a003281(a)jadenet.jadesterling.com>, relay=apache@localhost Nov 8 14:19:06 jadenet sendmail[3282]: jA8JJ6Sp003282: from=<apache(a)jadenet.jadesterling.com>, size=361, class=0, nrcpts=1, msgid=<200511081919.jA8JJ51a003281(a)jadenet.jadesterling.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1] Nov 8 14:19:06 jadenet sendmail[3281]: jA8JJ51a003281: to=hnguyen(a)jadesterling.com, ctladdr=apache (48/48), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30073, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (jA8JJ6Sp003282 Message accepted for delivery) Nov 8 14:19:06 jadenet sendmail[3284]: jA8JJ6Sp003282: to=<hnguyen(a)jadesterling.com>, ctladdr=<apache(a)jadenet.jadesterling.com> (48/48), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=120361, relay=mail.jadesterling.com. [216.144.3.38], dsn=5.0.0, stat=Service unavailable Nov 8 14:19:06 jadenet sendmail[3284]: jA8JJ6Sp003282: jA8JJ6Sp003284: DSN: Service unavailable Nov 8 14:19:06 jadenet sendmail[3284]: jA8JJ6Sp003284: to=root, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31627, dsn=2.0.0, stat=Sent divert(-1)dnl dnl # dnl # This is the sendmail macro config file for m4. If you make changes to dnl # /etc/mail/sendmail.mc, you will need to regenerate the dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is dnl # installed and then performing a dnl # dnl # make -C /etc/mail dnl # include(`/usr/share/sendmail-cf/m4/cf.m4')dnl VERSIONID(`setup for Red Hat Linux')dnl OSTYPE(`linux')dnl dnl # dnl # default logging level is 9, you might want to set it higher to dnl # debug the configuration dnl # dnl define(`confLOG_LEVEL', `9')dnl dnl # dnl # Uncomment and edit the following line if your outgoing mail needs to dnl # be sent out through an external mail server: dnl # define(`SMART_HOST',`mail.jadesterling.com')dnl dnl # define(`confDEF_USER_ID',``8:12'')dnl dnl define(`confAUTO_REBUILD')dnl define(`confTO_CONNECT', `1m')dnl define(`confTRY_NULL_MX_LIST',true)dnl define(`confDONT_PROBE_INTERFACES',true)dnl define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl define(`ALIAS_FILE', `/etc/aliases')dnl define(`STATUS_FILE', `/var/log/mail/statistics')dnl define(`UUCP_MAILER_MAX', `2000000')dnl define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl define(`confAUTH_OPTIONS', `A')dnl dnl # dnl # The following allows relaying if the user authenticates, and disallows dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links dnl # dnl define(`confAUTH_OPTIONS', `A p')dnl dnl # dnl # PLAIN is the preferred plaintext authentication method and used by dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do dnl # use LOGIN. Other mechanisms should be used if the connection is not dnl # guaranteed secure. dnl # Please remember that saslauthd needs to be running for AUTH. dnl # dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl dnl # dnl # Rudimentary information on creating certificates for sendmail TLS: dnl # cd /usr/share/ssl/certs; make sendmail.pem dnl # Complete usage: dnl # make -C /usr/share/ssl/certs usage dnl # dnl define(`confCACERT_PATH',`/usr/share/ssl/certs') dnl define(`confCACERT',`/usr/share/ssl/certs/ca-bundle.crt') dnl define(`confSERVER_CERT',`/usr/share/ssl/certs/sendmail.pem') dnl define(`confSERVER_KEY',`/usr/share/ssl/certs/sendmail.pem') dnl # dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's dnl # slapd, which requires the file to be readble by group ldap dnl # dnl define(`confDONT_BLAME_SENDMAIL',`groupreadablekeyfile')dnl dnl # dnl define(`confTO_QUEUEWARN', `4h')dnl dnl define(`confTO_QUEUERETURN', `5d')dnl dnl define(`confQUEUE_LA', `12')dnl dnl define(`confREFUSE_LA', `18')dnl define(`confTO_IDENT', `0')dnl dnl FEATURE(delay_checks)dnl FEATURE(`no_default_msa',`dnl')dnl FEATURE(`smrsh',`/usr/sbin/smrsh')dnl FEATURE(`mailertable',`hash -o /etc/mail/mailertable.db')dnl FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable.db')dnl FEATURE(redirect)dnl FEATURE(always_add_domain)dnl FEATURE(use_cw_file)dnl FEATURE(use_ct_file)dnl dnl # dnl # The following limits the number of processes sendmail can fork to accept dnl # incoming messages or process its message queues to 12.) sendmail refuses dnl # to accept connections once it has reached its quota of child processes. dnl # dnl define(`confMAX_DAEMON_CHILDREN', 12)dnl dnl # dnl # Limits the number of new connections per second. This caps the overhead dnl # incurred due to forking new sendmail processes. May be useful against dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address dnl # limit would be useful but is not available as an option at this writing.) dnl # dnl define(`confCONNECTION_RATE_THROTTLE', 3)dnl dnl # dnl # The -t option will retry delivery if e.g. the user runs over his quota. dnl # FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl FEATURE(`access_db',`hash -T<TMPF> -o /etc/mail/access.db')dnl FEATURE(`blacklist_recipients')dnl EXPOSED_USER(`root')dnl dnl # dnl # The following causes sendmail to only listen on the IPv4 loopback address dnl # 127.0.0.1 and not on any other network devices. Remove the loopback dnl # address restriction to accept email from the internet or intranet. dnl # dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl dnl # dnl # The following causes sendmail to additionally listen to port 587 for dnl # mail from MUAs that authenticate. Roaming users who can't reach their dnl # preferred sendmail daemon due to port 25 being blocked or redirected find dnl # this useful. dnl # dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl dnl # dnl # The following causes sendmail to additionally listen to port 465, but dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1. dnl # dnl # For this to work your OpenSSL certificates must be configured. dnl # dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl dnl # dnl # The following causes sendmail to additionally listen on the IPv6 loopback dnl # device. Remove the loopback address restriction listen to the network. dnl # dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl dnl # dnl # enable both ipv6 and ipv4 in sendmail: dnl # dnl DAEMON_OPTIONS(`Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6') dnl # dnl # We strongly recommend not accepting unresolvable domains if you want to dnl # protect yourself from spam. However, the laptop and users on computers dnl # that do not have 24x7 DNS do need this. dnl # FEATURE(`accept_unresolvable_domains')dnl dnl # dnl FEATURE(`relay_based_on_MX')dnl dnl # dnl # Also accept email sent to "localhost.localdomain" as local email. dnl # LOCAL_DOMAIN(`localhost.localdomain')dnl dnl # dnl # The following example makes mail from this host and any additional dnl # specified domains appear to be sent from mydomain.com dnl # MASQUERADE_AS(`jadesterling.com')dnl dnl # dnl # masquerade not just the headers, but the envelope as well dnl # dnl FEATURE(masquerade_envelope)dnl dnl # dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well dnl # dnl FEATURE(masquerade_entire_domain)dnl dnl # dnl MASQUERADE_DOMAIN(localhost)dnl dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl dnl MASQUERADE_DOMAIN(mydomain.lan)dnl FEATURE(`genericstable',`hash -o /etc/mail/genericstable.db')dnl GENERICS_DOMAIN_FILE(`/etc/mail/generics-domains')dnl MAILER(smtp)dnl MAILER(procmail)dnl

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compaq dl380 raid 5 striping size using built in scsi controllers ??
by Robert 09 Nov '05

09 Nov '05

greetings pre centos install raid5 setup on a compaq dl380 is asking for stripe size. 16kb 32kb 64kb i am using one of the built in controllers and the machine has just a gig of ram and 4 18.2 gig 10,000 rpm drives machine will be an email server with simple web hosting as well. suggestions? thanks - rh -- Robert Hanson - Abba Communications Computer & Internet Services (509) 624-7159 - www.abbacomm.net

4 5

USB Stick Install
by Bards1888 09 Nov '05

09 Nov '05

Hello all, I'm looking at setting up a sort of 'appliance' server and as such its really not going to have a lot packages etc. I thought of installing 4.2 on a 1gb USB stick, however, the stick is not even recongnized by anaconda. It did appear when I did 'modprobe usb-storage.ko' as /dev/sdc (i have already have 2 SATA disks which are sda, sdb). Then the disk partitioner does not allow me to install on the USB stick, its not even listed as an available drive. Does anyone have any redhat/centos experience with this ? I've successfully managed to get OpenBSD and Ubuntu to install and boot on exactly the same kit so there is nothing wrong hardware wise. I might try and disconnect the SATA drives before attempting the install to see if that make any difference. Thanks. Bards.

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