update-initramfs reports the following warning when generating initrd.img:
1 | Warning: couldn't identify filesystem type for fsck hook, ignoring. |
To identify filesystem type of /, update-initramfs requires device of / listed in /etc/fstab. My rootfs is cross-debootstrapped in virtual machine,Continue reading
Yes it’s the patch metioned in [v2,0/6] ARM64: meson: GXBaby (S905) and Vega S95 enablement. You might also would like to take a look at how did I build DebianContinue reading
In case of high latency link, a too small initcwnd could degrade performance, as it may take a while for throughput to increase to its maximum. Increasing initcwnd could mitigateContinue reading
This helps when the prefix is dynamic (allocated by ISP dynamically, for example). See also: radvd.conf(5) – Linux man page
1 2 3 4 5 6 7 8 9 | interface br0 { prefix ::/64 { # ... other stuffs AdvValidLifetime 300; # The length of time in seconds that the prefix is valid for the purpose of on-link determination AdvPreferredLifetime 120; # The length of time in seconds that addresses generated from the prefix via stateless address autoconfiguration remain preferred. }; }; |
According to the man page above, AdvValidLifetime less thanContinue reading
Applying the following patch (copied from the same file in Ubuntu 18.10) to /etc/dhcp/dhclient-enter-hooks.d/samba solved the problem:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | --- ./samba 2019-01-01 00:00:00.000000000 +0800 +++ ./samba.patched 2019-01-01 00:00:00.000000000 +0800 @@ -68,7 +68,18 @@ # reload the samba server # We don't necessarily have the samba package installed. #414841 - [ ! -x /etc/init.d/smbd ] || /usr/sbin/invoke-rc.d smbd reload + if [ -x /etc/init.d/smbd ] + then + if [ -d /run/systemd/system ] + then + if systemctl is-enabled smbd.service --quiet + then + systemctl try-reload-or-restart smbd.service + fi + else + /usr/sbin/invoke-rc.d smbd reload + fi + fi } |
Put the following to /etc/initramfs/post-update.d/99-uInitrd, and chmod +x to make it executable:
1 2 3 4 5 6 7 | #!/bin/sh set -e # $1 = version, $2 = full path to initrd.img-xxx echo "update-initramfs: Converting to /boot/uInitrd" >&2 temp="/boot/uInitrd-$1" mkimage -A arm64 -O linux -T ramdisk -C gzip -n uInitrd -d $2 $temp 1> /dev/null mv $temp /boot/uInitrd |
This is how update-initramfs -u looks like now:
1 2 3 | # update-initramfs -u update-initramfs: Generating /boot/initrd.img-4.20.0 update-initramfs: Converting to /boot/uInitrd |
Reference: Chapter 8. Package maintainer scripts and hooks.
Cross build Debian 9 for N1 This is what the box finally looks like:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | $ ssh root@1.1.1.2 Linux n1-box 4.20.0 #2 SMP PREEMPT Mon Dec 31 12:00:00 UTC 2018 aarch64 The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. Last login: Mon Dec 31 17:03:06 2018 from 1.1.1.1 [root@n1-box ~]# uname -a Linux n1-box 4.20.0 #2 SMP PREEMPT Mon Dec 31 12:00:00 UTC 2018 aarch64 GNU/Linux [root@n1-box ~]# neofetch _,met$$$$$gg. root@n1-box ,g$$$$$$$$$$$$$$$P. ----------- ,g$$P" """Y$$.". OS: Debian GNU/Linux 9 (stretch) aarch64 ,$$P' `$$$. Model: Phicomm N1 ',$$P ,ggs. `$$b: Kernel: 4.20.0 `d$$' ,$P"' . $$$ Uptime: 3 hours, 55 minutes $$P d$' , $$P Packages: 215 $$: $$. - ,d$$' Shell: bash 4.4.12 $$; Y$b._ _,d$P' CPU: (4) @ 1.5GHz Y$$. `.`"Y$$$$P"' Memory: 67MB / 1986MB `$$b "-.__ `Y$$ ████████████████████████ `Y$$. `$$b. `Y$$b. `"Y$b._ `""" |
It turns out to be quite easy.. Build the kernel Download the kernel source. DownloadContinue reading
Transmission is using a weird indent.. Patch Patched upon transmission-daemon 2.94-1.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | --- a/libtransmission/peer-mgr.c 2018-01-01 00:00:00.000000000 +0000 +++ b/libtransmission/peer-mgr.c 2018-01-01 00:00:00.000000000 +0000 @@ -1939,6 +1939,19 @@ tr_peerMsgsUpdateActive (msgs, TR_DOWN); } +static bool isUserAgentBad(const char* ua) +{ + static const char* blacklist[] = {"Thunder", "Xunlei"}; + int i; + + for (i = 0; i != sizeof(blacklist) / sizeof(blacklist[0]); ++i) { + // Performs bad, honestly. + if (!strncmp(blacklist[i], ua, strlen(blacklist[i]))) { + return true; + } + } + return false; +} /* FIXME: this is kind of a mess. */ static bool @@ -2036,18 +2049,25 @@ tr_quark client; tr_peerIo * io; char buf[128]; + const char* ua = ""; if (peer_id != NULL) - client = tr_quark_new (tr_clientForId (buf, sizeof (buf), peer_id), TR_BAD_SIZE); + client = tr_quark_new ((ua = tr_clientForId (buf, sizeof (buf), peer_id)), TR_BAD_SIZE); else client = TR_KEY_NONE; + if (!isUserAgentBad(ua)) + { + io = tr_handshakeStealIO (handshake); /* this steals its refcount too, which is + balanced by our unref in peerDelete () */ + tr_peerIoSetParent (io, &s->tor->bandwidth); + createBitTorrentPeer (s->tor, io, atom, client); - io = tr_handshakeStealIO (handshake); /* this steals its refcount too, which is - balanced by our unref in peerDelete () */ - tr_peerIoSetParent (io, &s->tor->bandwidth); - createBitTorrentPeer (s->tor, io, atom, client); - - success = true; + success = true; + } + else + { + tr_logAddDebug("Bad user agent \"%s\" (peer %s) tried to connect to us", ua, tr_atomAddrStr(atom)); + } } } } |
Install dependencies
1 | apt install autotools-dev intltool libcurl4-gnutls-dev libevent-dev libglib2.0-dev libminiupnpc-dev libnatpmp-dev libssl-dev libsystemd-dev zlib1g-dev |
Build & Install Be sure to stop transmission-daemon.service before installing the patched one. Extract tarballsContinue reading
Assign a unique network address to clients of ocserv by setting ipv4-network = x.x.x.x/24 in /etc/ocserv/ocserv.conf (or some file in /etc/ocserv/config-by-xxx/). Set up iptables to redirect traffic originated from thisContinue reading
Several points to note: Listening port cannot be set in /etc/ocserv.conf, instead, set them in //etc/systemd/system/ocserv.socket.d/port.conf. e.g.: [Socket] ListenDatagram= ListenStream=12345 Leaving the value as empty prevents ocserv from using thatContinue reading