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10368 discussions

pc card: "unable to read hardware net address"
by Jenny_Hopkins＠toby-churchill.com 16 Feb '01

16 Feb '01

Hello All! (Sorry; it is stupid question time again:) Does anyone know how I can force the kernel to read the hardware net address on my pc card? I'm using RH6.2. with kernel 2.2.14. on a laptop (someone has suggested upgrading to 2.4 and that may help, but a bit beyond me at present, would prefer an easier solution). Many thanks for everyone's help with Samba last week, BTW......still not running but I'm starting to know where I'm coming from now, and will spend some time poking before posting further. Very grateful. Jenny.

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Re: [Alug] Linux and Laptops
by Jenny_Hopkins＠toby-churchill.com 16 Feb '01

16 Feb '01

>I have a Comaq Presario1200 and on the couple of times I have >tried my only real problem has been using X ................................... What is your problem with X? I have managed to get RedHat onto my Toshiba laptop; it took a while to get X working.......is X working at all? Jenny.

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[Fwd: Re: [Alug] Linux and Laptops]
by suffolkchess 15 Feb '01

15 Feb '01

-------- Original Message -------- Subject: Re: [Alug] Linux and Laptops Date: Thu, 15 Feb 2001 08:05:51 +0100 From: Syd Hancock <syd(a)toufol.com> To: <alug(a)stu.uea.ac.uk> Scott, Apologies if you have looked here already but may be helpful: Just had a quick look and there are several entries for presario 1200 They have lots but not my version the XL-122 and my e-mail should be suffolkchess(a)clara.co.uk Regards Scott _______________________________________________ alug, the Anglian Linux User Group list Send list replies to alug(a)stu.uea.ac.uk http://rabbit.stu.uea.ac.uk/cgi-bin/listinfo/alug See the website for instructions on digest or unsub!

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[Chris Lingard <chris@stockwith.uklinux.net>] Greeting from Lincolnshire LUG
by MJ Ray 15 Feb '01

15 Feb '01

A neighbouring LUG which people on the edge of our area may be interested in. From: Chris Lingard <chris(a)stockwith.uklinux.net> Subject: Greeting from Lincolnshire LUG Hello, We have a mail list, and have tripled in numbers to three members! If any of your members would like to join us too, please ask them to subscribe lincs to majordomo(a)lists.lug.org.uk It will be some time before we can achieve much, but we will be happy to cooperate with your Anglia group. Chris Lingard -- MJR

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[Various] Digested Articles
by MJ Ray 15 Feb '01

15 Feb '01

Spam4you. From: Denny <denny(a)concretecow.com> Subject: [lugmaster] Mandrake Expert Here is what looks like a _very_ useful URL for Mandrake users: http://www.mandrakeexpert.com/ Regards, Denny ------ <denny(a)concretecow.com> ------ www.concretecow.com/denny ------ "I abhor the dull routine of existence. I crave for mental exaltation." (Sherlock Holmes - The Sign of Four) From: Joachim <bj(a)gmx.net> Subject: OT: Programmers wanted! Hi, Our company is urgently looking for fulltime C/C++ Programmers in Munich (Germany). All our development is on Linux for Linux. So if you are good in C, like the Oktoberfest, beer and "sauerkraut", then please reply to me directly. mailto: bj(a)gmx.net A greencard can also be arranged for non EU passportholders. Best regards, Joachim Bauernberger -- MJR

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Linux and Laptops
by suffolkchess 15 Feb '01

15 Feb '01

Alug Can anyone help at the moment i have Mandrake on my Desktop Computer and I am wanting to put Mandrake or any other distro on my laptop with Windows. I have a Comaq Presario1200 and on the couple of times I have tried my only real problem has been using X is there anyone who can help or even better someone near Bury St Edmunds who would sort it out for me. Regards Scott Taylor

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Re: [Alug] Firewall/Local network problem
by Barry Samuels 14 Feb '01

14 Feb '01

Laurie Brown <laurie(a)brownowl.com> wrote: > Barry Samuels wrote: > > > > I have a firewall set up on my machine which was put in place > by > > PMFirewall. Very easy for people like me who cannot > understand > > ipchains or its documentation. > > > > However it has left me with a small problem. When running > the > > PMFirewall setup it asks if my local network needs access to > the > > internet. I answered 'No' on the basis that only one machine > > needs access. Now I find that when the firewall is running > > machines on the local network are denied access to the > machine > > running the firewall. > > > > Can some clever firewall guru tell me what to alter to give > > access to this machine from the local network when the > firewall > > is running. These other machines do not need to access the > > Internet. > > > > As an aside I'm still hoping for a meeting somewhere near me > (10 > > miles South East of Colchester). > > > > Best wishes to all. > > > > Barry Samuels > > You'll need to post the script that set up the firewall, so we > can see > what's being set. Try "ipchains -L>file.name" and post > file.name to the > list, for a start. > > Cheers, Laurie. Below are the scripts set up by PMFirewall: =============================================================== #!/bin/sh # pmfirewall.conf - used by pmfirewall package IPCHAINS=/sbin/ipchains ATBOOT=0 CONFIG_DIR=/usr/local/pmfirewall OUTERIF=ppp0 REMOTENET=0/0 OUTERIP=`ifconfig $OUTERIF | grep inet | cut -d : -f 2 | cut -d \ -f 1` OUTERMASK=`ifconfig $OUTERIF | grep Mas | cut -d : -f 4` OUTERNET=$OUTERIP/$OUTERMASK =============================================================== #!/bin/sh # pmfirewall.rules.1 used by pmfirewall package # #### Start Firewall #### ## Allow loopback interface $IPCHAINS -A input -i lo -s 0/0 -d 0/0 -j ACCEPT $IPCHAINS -A output -i lo -s 0/0 -d 0/0 -j ACCEPT # Allow packets with ack bit set, they are from an established connection. $IPCHAINS -A input ! -y -p tcp -s $REMOTENET -d $OUTERNET -j ACCEPT # Block incoming IP Spoofing # Turn on Source Address Verification if [ -e /proc/sys/net/ipv4/conf/all/rp_filter ] then for f in /proc/sys/net/ipv4/conf/*/rp_filter do echo 1 > $f done fi #Turn on SYN COOKIES PROTECTION (Thanks Holger!) if [ -e /proc/sys/net/ipv4/tcp_syncookies ] then echo 1 > /proc/sys/net/ipv4/tcp_syncookies fi # Now read pmfirewall.rules.local =============================================================== #!/bin/sh # pmfirewall.rules.local # ver.PM1 (do not remove this line) ### BEGIN SYSTEM DEFAULTS ### # Block Nonroutable IP's from entering on the External Interface $IPCHAINS -A input -j DENY -s 10.0.0.0/8 -d $OUTERNET -i $OUTERIF $IPCHAINS -A input -j DENY -s 127.0.0.0/8 -d $OUTERNET -i $OUTERIF $IPCHAINS -A input -j DENY -s 172.16.0.0/12 -d $OUTERNET -i $OUTERIF $IPCHAINS -A input -j DENY -s 192.168.0.0/16 -d $OUTERNET -i $OUTERIF # - Specific port blocks on the external interface - # This section blocks off ports/services to the outside that have # vulnerabilities. This will not affect the ability to use these services # within your network. # # Back Orifice (logged) $IPCHAINS -A input -p tcp -s $REMOTENET -d $OUTERNET 31337 -j DENY -l $IPCHAINS -A input -p udp -s $REMOTENET -d $OUTERNET 31337 -j DENY -l # NetBus (logged) $IPCHAINS -A input -p tcp -s $REMOTENET -d $OUTERNET 12345:12346 -j DENY -l $IPCHAINS -A input -p udp -s $REMOTENET -d $OUTERNET 12345:12346 -j DENY -l # Trin00 (logged) $IPCHAINS -A input -p tcp -s $REMOTENET -d $OUTERNET 1524 -j DENY -l $IPCHAINS -A input -p tcp -s $REMOTENET -d $OUTERNET 27665 -j DENY -l $IPCHAINS -A input -p udp -s $REMOTENET -d $OUTERNET 27444 -j DENY -l $IPCHAINS -A input -p udp -s $REMOTENET -d $OUTERNET 31335 -j DENY -l # Multicast $IPCHAINS -A input -s 224.0.0.0/8 -d $REMOTENET -j DENY $IPCHAINS -A input -s $REMOTENET -d 224.0.0.0/8 -j DENY ### END SYSTEM DEFAULTS ### #### EXAMPLES ### ### ALLOWED NETWORKS # Add in any rules to specifically allow connections from hosts/nets that # would otherwise be blocked. #$IPCHAINS -A input -s [trusted host/net] -d $OUTERNET <ports> -j ACCEPT ### BLOCKED NETWORKS # Add in any rules to specifically block connections from hosts/nets that # have been known to cause problems. These packets are logged. #$IPCHAINS -A input -s [banned host/net] -d $OUTERNET <ports> -j DENY -l ### BLOCK ICMP ATTACKS # #$IPCHAINS -A input -b -i $OUTERIF -p icmp -s [host/net] -d $OUTERNET -j DENY -l #### END OF EXAMPLES ### ### AUTOMATICALLY GENERATED BY THE INSTALL SCRIPT ### #DHCP CLIENT BLOCK $IPCHAINS -A input -p udp -s $REMOTENET -d $REMOTENET 67:68 -i $OUTERIF -j DENY #IDENTD $IPCHAINS -A input -p tcp -s $REMOTENET -d $OUTERNET 113 -j REJECT $IPCHAINS -A input -p udp -s $REMOTENET -d $OUTERNET 113 -j REJECT #NETBIOS $IPCHAINS -A input -p tcp -s $REMOTENET -d $REMOTENET 137:139 -i $OUTERIF -j DENY $IPCHAINS -A input -p udp -s $REMOTENET -d $REMOTENET 137:139 -i $OUTERIF -j DENY #RIP $IPCHAINS -A input -p udp -s $REMOTENET -d $REMOTENET 520 -i $OUTERIF -j REJECT #NFS $IPCHAINS -A input -p tcp -s $REMOTENET -d $REMOTENET 2049 -i $OUTERIF -j DENY -l $IPCHAINS -A input -p udp -s $REMOTENET -d $REMOTENET 2049 -i $OUTERIF -j DENY -l #XSERVER $IPCHAINS -A input -p tcp -s $REMOTENET -d $REMOTENET 5999:6003 -i $OUTERIF -j DENY $IPCHAINS -A input -p udp -s $REMOTENET -d $REMOTENET 5999:6003 -i $OUTERIF -j DENY =============================================================== #!/bin/sh #pmfirewall.rules.masq - used by pmfirewall package # ## Masquerading ## Modules to help certain services /sbin/depmod -a >/dev/null 2>&1 /sbin/modprobe ip_masq_ftp >/dev/null 2>&1 /sbin/modprobe ip_masq_raudio >/dev/null 2>&1 /sbin/modprobe ip_masq_irc >/dev/null 2>&1 /sbin/modprobe ip_masq_icq >/dev/null 2>&1 /sbin/modprobe ip_masq_quake >/dev/null 2>&1 /sbin/modprobe ip_masq_user >/dev/null 2>&1 /sbin/modprobe ip_masq_vdolive >/dev/null 2>&1 ## Masquerading firewall timeouts: tcp conns 8hrs, tcp after fin pkt 60s, udp 10min $IPCHAINS -M -S 14400 60 600 ## Set up kernel to enable IP masquerading echo 1 > /proc/sys/net/ipv4/ip_forward ## Set up kernel to handle dynamic IP masquerading echo 1 > /proc/sys/net/ipv4/ip_dynaddr ## Don't Masquerade internal-internal traffic $IPCHAINS -A forward -s $INTERNALNET -d $INTERNALNET -j ACCEPT ## Don't Masquerade external interface direct $IPCHAINS -A forward -s $OUTERNET -d $REMOTENET -j ACCEPT ## Masquerade all internal IP's going outside $IPCHAINS -A forward -s $INTERNALNET -d $REMOTENET -j MASQ ## Set Default rule on MASQ chain to Deny $IPCHAINS -P forward DENY ## Allow all connections from the network to the outside $IPCHAINS -A input -s $INTERNALNET -d $REMOTENET -j ACCEPT $IPCHAINS -A output -s $INTERNALNET -d $REMOTENET -j ACCEPT # This section manipulates the Type Of Service (TOS) bits of the # packet. For this to work, you must have CONFIG_IP_ROUTE_TOS enabled # in your kernel # Set telnet, www, smtp, pop3 and FTP for minimum delay $IPCHAINS -A output -p tcp -d 0/0 80 -t 0x01 0x10 $IPCHAINS -A output -p tcp -d 0/0 22 -t 0x01 0x10 $IPCHAINS -A output -p tcp -d 0/0 23 -t 0x01 0x10 $IPCHAINS -A output -p tcp -d 0/0 21 -t 0x01 0x10 $IPCHAINS -A output -p tcp -d 0/0 110 -t 0x01 0x10 $IPCHAINS -A output -p tcp -d 0/0 25 -t 0x01 0x10 # Set ftp-data for maximum throughput $IPCHAINS -A output -p tcp -d 0/0 20 -t 0x01 0x08 # Allow outgoing ICMP $IPCHAINS -A output -p icmp -s $INTERNALNET -d $REMOTENET -j ACCEPT =============================================================== Thats the lot. I've included the masquerading although I don't use masquerading. I didn't know whether it would be important or not. I hope it all makes sense to somebody. Barry Samuels

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Firewall/Local network problem
by Barry Samuels 14 Feb '01

14 Feb '01

I have a firewall set up on my machine which was put in place by PMFirewall. Very easy for people like me who cannot understand ipchains or its documentation. However it has left me with a small problem. When running the PMFirewall setup it asks if my local network needs access to the internet. I answered 'No' on the basis that only one machine needs access. Now I find that when the firewall is running machines on the local network are denied access to the machine running the firewall. Can some clever firewall guru tell me what to alter to give access to this machine from the local network when the firewall is running. These other machines do not need to access the Internet. As an aside I'm still hoping for a meeting somewhere near me (10 miles South East of Colchester). Best wishes to all. Barry Samuels

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Picky ?!!!
by Simon Parkes 14 Feb '01

14 Feb '01

Don't mean to be picky here, but on the alug website it says that the next meeting in in the year 2000 ?? I know it was a leap year but.... Simon

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RE: [Alug] NFS Install probs.
by Corner Paul 13 Feb '01

13 Feb '01

Thanks Steve. The kernel was compiled on one machine. Most of the RPMs collected from various sources - the rest built 'in house'. The whole lot put together on another machine...mmmm..... I will check the lilo version tonight. Regards, Paul. > -----Original Message----- > From: Steve Fosdick [SMTP:fozzy@pelvoux.demon.co.uk] > Sent: 12 February 2001 23:23 > To: 'A. Lug' > Subject: Re: [Alug] NFS Install probs. > > I get an error message "crc error --system halted--". > > From a quick look at the kernel source it looks as if this error comes > from a module called inflate.c which is used to uncompress the kernel > image once it has been loaded into memory. > > The most likely cause of the message therefore is the compressed > kernel image as loaded into memory being corrupt and in the case of a > kernel being loaded from hard disk the most likely cause of that is > the LILO kernel image map being out of date so LILO loads the wrong > disk blocks. >

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