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TFP inside firewall
by lingu 11 Jun '08

11 Jun '08

Hi, I have a setup where the tftp server is inside the firewall. Now the issue is tftp client send request on dynamic udp port. Can anyone give some idea, how i can bind the fixed port for client udp requests ? Otherwise i hope, it is not a solution that i will open all port related to UDP in the firewall. Regards, lingu

3 3

Newer GNOME than base release
by MHR 10 Jun '08

10 Jun '08

I have asked about this before, but I don't have a workable answer yet. I would like to know if there is a way to install a more recent GNOME package on CentOS 5.x than 2.16.0. 1) GNOME Bugzilla does not support this version any more - all bugs go into the bit bucket. 2) Having been exposed to Fedora 8 at work and seeing how much more flexible GNOME 2.22 is, I would REALLY like to take a shot at using it on my CentOS systems. 3) I asked about this on the GNOME list and I was told I should build it, and that jhbuild or garnome would do the job for me. This has not been my experience - both of them have major hangups building on my home desktop (the 64-bit hybrid CentOS 5.1 environment). 4) Johnny suggested I try mock to build in a chroot, pure 64-bit environment. I was unable to locate a mock that actually installed and worked on my system. (Yeah, yeah, I know, I'm the only person for whom this does not work. Heard it, can't believe it, must be doing something most others don't, whatever.... ;*) I have trouble believing that the ONLY ways to get a newer GNOME are to wait for CentOS 6, run a different distro (not likely) or build it myself. This is Linux, after all, isn't it? (That's a rhetorical question - no answer required, unless those /really are/ the only options....) TIA. mhr

5 11

Setting up a chroot
by MHR 10 Jun '08

10 Jun '08

I'm trying to build GNOME (to run a more recent version than 2.16.* on CentOS 5.1) and I keep running into a lot of rather strange problems. I'm wondering if this might have something to do with my hybrid 64 and 32 bit general environment, so I want to try a pure 64-bit chroot. I've never done this before, and I'm not entirely sure how to, and I didn't see anything particularly on point, either at centos.org or google. If I missed it, just say where and that should be enough. Guidelines? Suggestions (other than "go away" or other physically difficult crudities :-)? Thanks. mhr

3 4

OT: Contract job assignment in Huntsville AL for Embedded Linux Developer
by Lanny Marcus 10 Jun '08

10 Jun '08

I have never seen an hourly rate like the one below, before this. If anyone on the list is qualified and interested in applying, email me, off list, and I will give you the contact information. Embedded Linux Developer Description: 12-18 month project for embedded Linux developer. Looking for strong skills in kernel/driver development and modification. Primarily new development, but may entail some enhancements to existing systems. Work centers around communications and data capture systems. More details upon request Job Number: HTSV1 Job Location: Huntsville, AL Rate: 100-115 HR Per Diem: Yes Overtime: Yes Duration: 12-18 months Input Date: 06/10/2008

2 1

RE: [CentOS] Copying files from specific date.
by Bowie Bailey 10 Jun '08

10 Jun '08

Rajeev R. Veedu wrote: > -----Original Message----- > From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On > Behalf Of Steve Huff > Sent: Monday, June 09, 2008 7:34 PM > To: centos(a)centos.org > Subject: Re: [CentOS] Copying files from specific date. > > > On Jun 9, 2008, at 11:16 AM, Rajeev R. Veedu wrote: > > Does anyone aware of any utility to copy files which are created > > or modify form a specific date ?. > > > > > > to copy all files in /dir1 modified within the last 5 days to > > > /dir2: > > > > $ find /dir1 -mtime -5 | xargs -I {} cp {} /dir2 > > > > if the filenames have whitespace in them, you can use this trick: > > > > $ find /dir1 -mtime -5 -print0 | xargs -0 -I {} cp {} /dir2 > > > > for more details on selecting by time: > > > > $ man find > > > > pay particular attention to the options -atime, -amin, -ctime, > > > -cmin, -mtime, -mmin, and -daystart. > > > > -steve > > Actually I need to copy this on to another server with same folder > structure. I think I need to explain bit of history. > > I had a server crash last week, and we have restored the files from > the tape. However during this period of making the server up, the > users having adding or changed files from our backup Server (Samba > server which rsync to production server every night.) now I need to > copy the files which user added/ modify last 7 days. Ideally if I can > get this option in rsync it would be better. Otherwise I need to have > a method so that all changed files to go on the relevant folder on > the production server. I cannot take the full files in the backup > files since they are historical backup and there are some unwanted > files. > > Can I use scp instead of cp in your statement?. But how does it take > the same directory name as the original location? > > Eg:from ServerA/FLDR2/FLDR3/Filename should go to > ServerB/FLDR2/FLDR3/FILENAME > > Only change is the server name all other values will remain same. > > Any help would be really appreciated. One approach would be to use the find command given above to generate a list of files that have changed. Then pass that list to rsync via the '--files-from' option to transfer them to the other server. -- Bowie

6 5

Kernel Panic
by Ryan Nichols 10 Jun '08

10 Jun '08

I am very very new to the linux world.. I am having problems with CentOS5.1 with kernel panics. I belive the cause of the kernel panics are a software that I am running on the machine, but I cannot find any information as to what the system was doing prior to the crash, i have looked in the /var/log/messaging to no solution. I guess what I am asking is what do i need to turn on for when this kernel crash comes again? It happens with in hours or days of running this software, it is random and sudden. Thanks, Ryan Nichols

2 1

Help!
by Sam Drinkard 10 Jun '08

10 Jun '08

Folks, I have a bit of a problem and can't seem to figure out what is getting broken or why. I've been pulling my hair out trying to get clamav or clamav-milter to install and permit yum update to continue. What is happening is this: I yum install the clamav package, but when I try to do an update on the system, it constantly returns with an error of a Missing Dependency for clamd and clamav-db. I've installed and erased clamav several times, and that's the only way I can do a yum update on the system. The files are coming from sourceforge, and the version is 0.93-2.el4rf. Perhaps I'm not installing in the correct sequence or something, so could someone please tell me how to go about getting all the dependencies for the clamav package? This is the x86_64 version I've been working with. Many thanks.... Sam

6 15

Dependency problem with libgaim.so.0 when installing GNOME
by Leonardo Vilela Pinheiro 10 Jun '08

10 Jun '08

CentOS 5.1 - I have already executed 'yum clean all' but the error persists. What could be the problem? $ yum groupinstall "GNOME Desktop Environment" Loading "installonlyn" plugin Setting up Group Process Setting up repositories Setting up repositories Reading repository metadata in from local files Package gnome-panel - 2.16.1-6.el5.i386 already installed and latest version Package metacity - 2.16.0-8.el5.i386 already installed and latest version Package at-spi - 1.7.11-2.fc6.i386 already installed and latest version Package gtk2-engines - 2.8.0-3.el5.i386 already installed and latest version Package gnome-screensaver - 2.16.1-5.el5_1.1.i386 already installed and latest version Resolving Dependencies <snip> --> Processing Dependency: foomatic for package: system-config-printer-libs --> Processing Dependency: lockdev for package: gphoto2 --> Processing Dependency: libgaim.so.0 for package: nautilus-sendto --> Processing Dependency: libpq.so.4 for package: apr-util --> Processing Dependency: PyXML for package: system-config-printer-libs --> Restarting Dependency Resolution with new changes. --> Populating transaction set with selected packages. Please wait. ---> Package foomatic.i386 0:3.0.2-38.1.el5 set to be updated ---> Package PyXML.i386 0:0.8.4-4 set to be updated ---> Package lockdev.i386 0:1.0.1-10 set to be updated ---> Package postgresql-libs.i386 0:8.1.11-1.el5_1.1 set to be updated --> Running transaction check --> Processing Dependency: libgaim.so.0 for package: nautilus-sendto --> Finished Dependency Resolution Error: Missing Dependency: libgaim.so.0 is needed by package nautilus-sendto

2 1

sendmail not sending after reboot
by Ray Leventhal 10 Jun '08

10 Jun '08

HI folks, I've an up-to-date CentOS 5.x box on a small intranet (<20 users). We did a reboot over the weekend and all appears well except that clients on the LAN can no longer send email. Just hangs/times out. No clear identifiers in the /var/log/maillog or /var/log/messages. We're not setup for ESMTP as it's a closed network and I'm really hoping for a kickstart as to where to look to get this going. In case it helps, my sendmail.cf file is below. Thanks in advance. -R 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 linux')dnl OSTYPE(`linux')dnl dnl # dnl # Do not advertize sendmail version. dnl # dnl define(`confSMTP_LOGIN_MSG', `$j Sendmail; $b')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 # dnl # define(`SMART_HOST', `smtp.your.provider')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', `/etc/pki/tls/certs')dnl dnl define(`confCACERT', `/etc/pki/tls/certs/ca-bundle.crt')dnl dnl define(`confSERVER_CERT', `/etc/pki/tls/certs/sendmail.pem')dnl dnl define(`confSERVER_KEY', `/etc/pki/tls/certs/sendmail.pem')dnl 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 20.) sendmail refuses dnl # to accept connections once it has reached its quota of child processes. dnl # dnl define(`confMAX_DAEMON_CHILDREN', `20')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 # For using Cyrus-IMAPd as POP3/IMAP server through LMTP delivery uncomment dnl # the following 2 definitions and activate below in the MAILER section the dnl # cyrusv2 mailer. dnl # dnl define(`confLOCAL_MAILER', `cyrusv2')dnl dnl define(`CYRUSV2_MAILER_ARGS', `FILE /var/lib/imap/socket/lmtp')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 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 # dnl MASQUERADE_AS(`mydomain.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 MAILER(smtp)dnl MAILER(procmail)dnl dnl MAILER(cyrusv2)dnl DAEMON_OPTIONS(`Name=smtp,Modifiers=b')

6 21

mod_security
by Tony Schreiner 10 Jun '08

10 Jun '08

I've set up a CentOS 5 system as a server for http installs. Currently up-to-date with httpd-2.2.3-11.el5_1.centos.3 mod_security-2.1.7-1.el5 my installs were failing just after the root password set up, before software selection. I tracked it down to a server error 500 and it was due to mod_security claiming the comps.xml file was too big The error: [Tue Jun 10 09:59:01 2008] [error] [client XXX.XXX.XXX.XXX] ModSecurity: Output filter: Content-Length (934390) over the limit (524288). [hostname "XXX.XXX"] [uri "/install/centos/5/x86_64/ repodata/comps.xml"] [unique_id "VJNb-4inMQIAACd0XcwAAAAA"] This is set in /etc/httpd/mod_security.d/modsecurity_crs_10_config.conf SecResponseBodyLimit 524288 I increased that size and all is now well, but can somebody enlighten me as to the purpose of that setting? I've started reading the document in /usr/share/doc/mod_security-2.1.7/doc/modsecurity2-apache-reference.pdf is there other good documentation for mod_security? Cheers, Tony Schreiner Boston College

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